ELEMENTS 01 By the use of a revolving cutter with many

1. Heating above the transformation range, teeth each tooths having a cutting edge which
usually 1300oF to 1350oF, and cooling slowly removes its share of the stock.
to soften the metal and increase in machining A. drilling machine
A. annealing B. boring machine
B. hardening C. milling machine
C. normalizing D. broaching machine
D. tempering 8. A machine tool used to sharpen or shape tools
2. Heating above the transformation temperature by using an abrasive wheel.
and quenching usually in oil, for the purpose A. tool grinder
of increasing the hardness B. shaper
A. annealing C. planer
B. hardening D. power saw
C. normalizing 9. A machine tool used to enlarge a hole by
D. tempering means of an adjustable cutting tool with only
3. Reheating to temperature below the one cutting edge.
transformation range, followed by any desired A. drilling machine
rate of cooling to attain the desired properties B. boring machine
PRIME ELEMENTS of the metal.
A. annealing
C. milling machine
D. broaching machine

MACHINE DESIGN II B. hardening

C. normalizing
10. A machine tool used to cut metal by parts of
light, medium, and large sections using a
D. stress relieving reciprocating hacksaw blade.
4. Heating to subcritical temperature, about A. tool grinder
1100oF to 1300oF and holding at that B. shaper
temperature for a suitable time for the purpose C. planer
of reducing internal residual stresses. D. power saw
A. annealing 11. A machine tool used to machine flat or plane
B. hardening surfaces with a single point cutting tool.
C. normalizing A. tool grinder
D. stress relieving B. shaper
5. Heating some 100oF above the transformation C. planer
range with subsequent cooling to below that D. power saw
range in still air at room temperature to 12. A machine tool used for production or flat
produce uniform structure of the metal. surfaces on pieces too large or too heavy to
A. annealing hold in a shaper.
B. hardening A. tool grinder
C. normalizing B. shaper
D. tempering C. planer
6. A machine tool used for producing holes in D. power saw
metal by the use of cutting tool called drill. 13. A machine tool used to finish internal or
A. drilling machine external surfaces such as holes or keyways by
B. boring machine the use of a cutter called broach, which has a
C. milling machine series of cutting edges or teeth.
D. broaching machine A. drilling machine
7. A machine tool use to form metal parts by B. boring machine
removing metal from a work piece C. milling machine
1
 D. broaching machine C. lathe machine C. turning
14. An alloy of copper and tin D. boring machine D. reaming
A. brass 21. A machine tool used in the production of flat 28. The operation of making a cone shaped
B. bronze surfaces on pieces too large or too heavy or enlargement of the end of a hole, as for a
C. iron perhaps too awkward to hold in a shaper recess for a flat head screw
D. tin A. shaper A. countersinking
15. An alloy of copper and zinc B. planer B. knurling
A. brass C. tool grinder C. squaring
B. bronze D. power saw D. perforating
C. iron 22. It consist of shaping a piece by bringing it 29. The operation of enlarging a hole by means of
D. tin into contact with a rotating abrasive wheel an adjustable cutting tool with only one
16. The process of forming metal parts by the use A. drilling cutting edge
of dies after the metal is heated to its plastic B. boring A. drilling
range C. grinding B. broaching
A. rolling D. broaching C. grinding
B. forging 23. A tool used in measuring diameters D. boring
C. turning A. caliper 30. An imaginary circle passing through the points
D. casting B. nanometer at which the teeth of the meshing gears contact
17. The process of forming a metal parts by the use C. tachometer each other
of a powerful pressure from a hammer or press D. pyrometer A. pitch circle
to obtain the desired shape after the metal has 24. Used to true align machine tools, fixtures, and B. addendum circle
been heated to its plastic range works, to test and inspect trueness of finished C. deddendum circle
A. rolling work, and too compare measurement either D. base circle
B. forging heights or depths or many other measurement 31. A type of bolt for use in bolting wooden parts
C. turning A. dial gauge together or wood to metal,. It has a portion of
D. casting B. dial indicator shank just underneath a round head, which is
18. A manganese steel containing approximately C. tachometer designed to keep the bolt from turning in the
0.20% carbon D. speedometer wood when the nut t tightened
A. SAE 1320 25. The ability of the metal to be deformed A. u-bolt
B. SAE 1230 considerably without rupture B. carriage bolt
C. SAE 2340 A. ductility C. eye bolt
D. SAE 4230 B. plasticity D. stud bolt
19. A machine tool in which metal removed by C. malleability 32. The number of teeth per inch of pitch
means of a revolving cutter with many teeth, D. elasticity diameter and which gives some indications of
each tooth having a cutting edge which remove 26. The shop term used to include the marking of the gear teeth
its share of the shock inscribing of center points, circle, arcs, or A. module
A. milling machine straight line upon metal surfaces, either curved B. pitch circle
B. broaching machine or flat, for the guidance of the worker C. diametral pitch
C. lathe machine A. shaping D. circular pitch
D. boring machine B. hobbing 33. The distance from the center of one tooth of a
20. A metal turning machine in which the work C. laying out gear the center of the next consecutive tooth
while revolving on a horizontal axis is acted D. shaping measured of the pitch
upon by a cutting tool which is made to move 27. An operation of sizing and finishing a hole by A. circular pitch
slowly (feed) in a direction more or less parallel means of a cutting tool having several cutting B. module
to the axis of the work (longitudinal feed) edges C. diametral pitch
A. milling machine A. notching D. pitch circle
B. broaching machine B. piercing
2
34. The portion of the gear tooth that projects steel slowly above the usual hardening D. flute
above or outside the pitch circle temperature keeping it at the heat for ½ to 2 48. A set of gages consisting of thin strips of metal
A. top relief hours then cooling slowly, preferably in a of various thickness mounted in a steel case or
B. deddendum furnace holder and is widely used for measuring and
C. addendum A. broaching checking clearances
D. tooth space B. quenching A. feeler gage
35. The portion of the gear tooth space that is cut C. normalizing B. depth gage
below the pitch circle and is equal to the D. annealing C. line center gage
addendum plus the clearance 42. The total permissible variation in the size of a D. lay-out gage
A. top root dimension the difference between the limits of 49. A machine tool which is very similar to a
B. deddendum size shaper except that the ram reciprocates
C. addendum A. allowance vertically rather than horizontally
D. top land B. tolerance A. Lathe
36. When meshed with a gear it is used to change C. variance B. Grinder
rotary motion to reciprocating motion D. interference C. Planer
A. gear shaft 43. The operation of machining the end of a work D. Slotter
B. gear tooth piece to make the end square with the axis 50. A machine tool principally to machine flat or
C. gear rack A. squaring plane surfaces with single-point cutting tool
D. gear motor B. buffing A. Grinder
37. A kind of gears for heavy duty works where a C. lapping B. Shaper
large ratio of speed is required and are D. honing C. Planer
extensively used in speed reducers 44. The clearance between the tooth profiles of a D. Turret machine
A. bevel gear gear tooth 51. A kind of bolts which has no head an instead
B. worm gear A. toothspace has threads on both ends
C. helical gear B. backslash A. Stud bolts
D. spiral gear C. flank B. Acme threaded bolts
38. A kind of gear to transmit motion from one D. width C. Square threaded bolts
shaft to another shaft at an angle to the first 45. A mechanism which usually do the indexing in D. Hex bolts
A. bevel gear a machine tool 52. A kind of chuck which has a reversible jaws
B. worm gear A. slotter which could be adjusted separately
C. helical gear B. chuck A. Collet chuck
D. spiral gear C. dividing head B. Independent chuck
39. The uniform heating of steel above the usual D. indexer C. Four jaw chuck
hardening temperatures, followed by cooling 46. A material that can wear away a substance 53. A tool which when pressed into finished hole
freely in air softer than itself in a piece of work, provides centers on which
A. annealing A. phenol the piece may be turned or otherwise
B. normalizing B. abrasive machined
C. hardening C. tungsten A. Mash
D. tempering D. chromium B. Butt
40. The operation of cooling a heated piece of 47. A cylindrical bar of steel with threads formed C. Mandrel
work rapidly by dipping it in water, brine or oil around it and grooves or flutes running D. Wobble
A. quenching lengthwise in it, intersecting with the threads 54. A kind of chuck which should not used where
B. tempering to form cutting edges. It is used to cut internal extreme accuracy is required
C. normalizing threads A. Collet chuck
D. annealing A. groove B. Magnetic chuck
41. A method in softening a piece of metal that is B. lap C. Four jaw chuck
too hard to machine and is done by heating C. tap D. Universal chuck
3
55. The process of checking or producing B. Hardening 69. A hand tool used to measure tension on bolts
checkers on the surface of a piece by rolling C. Annealing A. Indexer
checkered depression into the surface D. Tempering B. Torque wrench
A. Knurling 62. Welding operation in which a non-ferrous C. Torsionmeter
B. Hemming filler metal melts at a temperature below that D. Tensionmeter
C. Breading of the metal joined but is heated above 450oC 70. The permissible variation in the size of a
D. Embossing A. Gas welding dimension the difference between the limits of
56. Its fits the main spindle of a lathe and is so B. Spot welding size
called because its acts as a bearing surface on C. Brazing A. Allowance
which the work rest. It revolves with the work. D. Steam welding B. Variance
When compared with the hardness of the dead 63. Uniting two pieces of metal by means of a C. Clearance
center in the tailstock, is usually soft, and is so different metal which applied between the two D. Tolerance
made since it does not work in molten state 71. A gear with teeth on the outer cylindrical
A. Ram center A. Casting surface
B. Spindle center B. Welding A. Outer gear
C. Live center C. Soldering B. External gear
D. Bearing center D. Brazing C. Spiral gear
57. A gripping device with two or more adjustable 64. Fusion process of metal by means is heated D. Helical gear
jaws radially into a state of fusion permitting it to flow 72. The diameter of a circle coinciding with the
A. Chuck together into a solid joint top of the teeth of an internal gear
B. Carriage A. Electric arc welding A. Pitch diameter
C. Tailstock B. Gas welding B. Root diameter
D. Fan C. Spot welding C. Internal diameter
58. Steel Balls for ball bearings are manufactured 65. Joining metal by means of high current at low D. Central diameter
by voltage. During the passage of current, pressure 73. A circle coinciding with a tangent to the
A. Turning by the electrodes produces a forge weld bottom of the tooth space
B. Rolling A. Spot welding A. Root circle
C. Casting B. Resistance welding B. Pitch circle
D. Cold heading C. Steam welding C. Addendum circle
59. Addendum of a cycloidal gear tooth D. Gas welding D. Deddendum circle
A. Cycloid 66. A device for accurately measuring diameters 74. The total depth of a tooth space, equal to
B. Epicycloids A. Radiometer addendum plus deddendum
C. Straight rack B. Profilometer A. Full depth
D. Involutes C. Spectrometer B. Working depth
60. In a lathe, it comprises the main spindle, the D. Micrometer C. Whole depth
necessary mechanism for obtaining the various 67. A group of thin steel strips for measuring D. Deddendum
spindle speed and also certain gears which are clearances 75. The depth of tooth space below the pitch
used to operate the quick change gear A. Distortion gage circle
mechanism B. Feeler gage A. Deddendum
A. Headstock C. Line center gage B. Working depth
B. Carriage D. Deflection gage C. Full depth
C. Tailstock 68. A hand tool used to measure engine crank web D. Tooth depth
D. Fan deflection 76. The ________ of gear to each mm pitch
61. The process of heating a piece of steel to a A. Distortion gage diameter
temperature within or above critical range and B. Feeler gage A. Diametral pitch
cooling rapidly C. Line center gage B. Module
A. Normalizing D. Deflection gage C. Circular pitch
4
 D. English module C. bh3/3 D. Clearance gage
77. A machine tool in which abrasive wheel is used D. bh2/4 92. A hand tool used to measure tension on bolts
as cutting tool obtain a very smooth finish 85. In usual spur gearing A. Indexer
A. Drill A. The pitch circle and the base are the B. Torsion meter
B. Grinder same C. Torque wrench
C. Planer B. Working depth includes the clearance D. Tension meter
D. Shaper C. Tooth outline are usually involute curves 93. A material that can wear away a substance
78. It is used to produce a variety of surfaces by D. Tooth outline are always cycloidal curves softer than itself
using a circular type cutter with multiple teeth 86. A stainless steel is obtained principally by the A. Abrasive
A. Grinding machine use of the following alloying element B. Corrosive
B. Shaper A. Chromium C. Tungsten
C. Drilling machine B. Tungsten D. Alloy
D. Milling machine C. Carbon 94. The material used in high speed processes
79. It is used principally to machine flat or plane D. Phenol A. High speed steel
surfaces with single point tool 87. One of the following is not a common term B. Chromium
A. Drill relating to the classification of fits C. Cast iron
B. Shaper A. Tunking D. Carbon steel
C. Planer B. Snug 95. An alloy of copper and zinc
D. Grinder C. Medium force fit A. Chromium
80. Cutting a hole by means of rotating tool or the D. Bound B. Bronze
work may revolve and to the tool remain fixed 88. Hearing bone Gears are gears which C. Brass
as in the lathe A. Do not operate on parallel shaft D. Aluminum
A. Piecing B. Have a line contact between teeth 96. An alloy of copper, tin, and small amount of
B. Notching C. Consist of two left handed helical gears phosphorous
C. Boring D. Tend to produce thrust on the shafts A. Chromium
D. Perforating 89. Internal stresses existing in a welded B. Bronze
81. One of the following is not a tap used for connection C. Brass
cutting threads in holes A. Are not relieved when the weld is D. Aluminum
A. Tapping tap peened 97. The process of working metals by the
B. Plug tap B. Are not relieved by heat treatment application of sudden blows or by steady
C. Taper tap C. May be relieved when the weld is peened pressure
D. Bottoming tap D. Are relieved by x-ray analysis A. Welding
82. An index or dividing head 90. In general the design stress and factor of safety B. Extrusion
A. A part of drill press are related as follows C. Forging
B. Used to rotate work A. Design stress=ultimate stress times factor D. Swaging
C. Not used to cut helixes of safety 98. A welding operation in which a non-ferrous
D. Always manually operated B. Design stress=ultimate stress divided by filler metal melts at a temperature below that
83. Galvanized iron is a term referring to iron factor of safety of the metal joined but is heated above 450oC
coated with C. Design stress=design stress divided by A. Brazing
A. Tin factor of safety B. Spot welding
B. Zinc D. Design stress= factor of safety divided by C. Gas welding
C. Magnesium design stress D. Projection welding
D. Aluminum 91. A group of thin steel strips for measuring 99. The operation of cooling a heated piece of
84. The moment of inertia of a rectangle whose clearance work rapidly by dipping it in water, brine, or
base is “b” and height “h” about its base is A. Depth cut oil
A. bh3/12 B. Feeler gage A. Tempering
B. bh/46 C. Lay-out gage B. Annealing
5
 C. Quenching 7. The common deoxidizer and cleanser of steel, B. Brazing
D. Normalizing forming oxides and sulfates that are carried off C. Spot welding
100. A machine tool used to machine flat surfaces in the slag. D. Butt welding
A. Shaper A. Manganese 15. The process of working metals by the
B. Planer B. Carbon application of sudden blows r by a steady
C. Grinder C. Tungsten pressure.
D. Lathe D. Sulfur A. Trimming
ELEMENTS 02 8. A highly transparent and exceeding hard B. Welding
1. A machine tool in which an abrasive wheel is crystalline stone of almost pure carbon. C. Forging
used a cutting to obtain a very smooth finish. A. Gold D. Lancing
A. planer B. Diamond 16. The process of producing a variety of surface
B. shaper C. Bronze by using a circular type cutter with multiple
C. power saw D. Crystalline teeth.
D. grinder 9. A fine grained, salty silica rock used for A. Piercing
2. It is used to produce a variety of surfaces by sharpening edge tools. B. Cutting
using a circular type cutter with a multiple A. Eutectoid C. Embossing
teeth. B. Austenite D. Milling
A. milling machine C. Oilstone 17. The softening of meals by heat treatment and
B. broaching machine D. Pearlite most commonly consists of heating the metals
C. beading machine 10. An amorphous solid made by using silica with up to near molten state cooling them very
D. hemming machine a basic oxide. slowly.
3. A heavy rotating body which serves as reservoir A. Pearlite A. Quenching
for absorbing and redisturbing kinetic energy. B. Rock B. Tempering
A. Shaft C. Silicon C. Annealing
B. Governor D. Glass D. Forming
C. Flywheel 11. A soft yellow metal, known since ancient times 18. The maximum stress induced in a material
D. Puncher a precious metal which values are based. when subjected to alternating or repeated
4. A kind of gear used for heavy duty works A. Solidus loading without causing failure.
where a large ratio of speed is required and is B. Bronze A. Elastic limit
extensively used in speed reducers. C. Gold B. Proportional limit
A. Helical gear D. Austenite C. Rupture strength
B. Worm gear 12. The operation of cooling a heated piece of D. Endurance limit
C. Bevel gear work rapidly by dropping it in water, brine or 19. The total deformation measured in the
D. Spiral gear oil. direction of the line of stress.
5. A kind of gear used to transmit motion from A. Normalizing A. Axial deformation
one shaft to another shaft at angle to the first. B. Quenching B. Elongation
A. Helical gear C. Annealing C. Strain
B. Worm gear D. Squeezing D. Unit stress
C. Bevel gear 13. A device used to prevent leakage of media. 20. The maximum stress to which a material can
D. Spiral gear A. Seal be subjected without a trace of any permanent
6. The minimum thickness to steel members B. Packing set remaining upon a complete withdrawal of
exposed to weather and accessible for painting C. Teflon the stress.
is: D. Graphite A. Ultimate limit
A. 6mm 14. A welding operation in which a non-ferrous B. Proportional limit
B. 8mm filler metal melts at a temperature below that C. Endurance limit
C. 4mm of the metal joined but is heated above 450oC. D. Elastic limit
D. 10mm A. Arc welding
6
21. The total permissible variation in the size of a A. Hematite B. Nickel
dimension; the difference between the limits of B. Magnetite C. Brass
the size. C. Sulfurite D. Bronze
A. Deformation D. Siderite 37. A tool with hardened points used for scribing
B. Variance 29. Which of the following metals will respond to circles or laying of distances.
C. Tolerance heat treatment? A. Trammel
D. Allowance A. Cast iron B. Caliper
22. Fluid film desired between two surfaces having B. Medium carbon steel C. Divider
relative sliding motion. C. Wrought iron D. Micrometer
A. Lube oil D. Low carbon steel 38. Name of mechanism which a welding operator
B. Lubrication 30. Which of the following is a non-magnetic? holds during gas welding and at the end of
C. Graphite A. Cast iron which the gases are burned to perform the
D. Grease B. Alloy steel various gas welding operations.
23. Flexible materials used to seal pressurized C. Cast steel A. Mash
fluids, normally under dynamic conditions. D. Manganese steel B. Core
A. Packing 31. The ability of metal to withstand without C. Wobble
B. Teflon breaking down is: D. Torch
C. Seals A. Stress 39. The maximum stress to which a material may
D. Safety shield B. Strength be subjected before failure occurs.
24. A total resistance that a material offers to an C. Strain A. Rupture stress
applied load. D. Elasticity B. Yield stress
A. Flexure 32. A machining operation whereby the tool C. Ultimate stress
B. Stress reciprocates and the feed is stationary is called: D. Allowable stress
C. Elasticity A. Shaping 40. The maximum stress induced in a material
D. Rigidly B. Reaming when subjected to alternate or repeated
25. A property of material which relates the lateral C. Planning loading without causing failure.
strains to the longitudinal strain. D. Turning A. Yield point
A. Rigidity 33. Any material that retards the flow of electricity B. Ultimate point
B. Elasticity used to prevent passage or escape of electric C. Endurance point
C. Poisson’s ratio current from conductors. D. Proportional point
D. Deflection A. Insulators 41. Which of the following is not a classification of
26. A kind of gear used for heavy duty works B. Bricks iron ore?
where a large ratio of speed is required and is C. Ceramics A. Hematite
extensively used in speed reducers.] D. Refractories B. Magnetic
A. Spiral gear 34. A metallic element and the only metal that is C. Sulfurite
B. Bevel gear liquid at ordinary temperature. D. Siderite
C. Worm gear A. Austenite 42. Of the following metals, which will respond to
D. Helical gear B. Mercury heat treatment?
27. A kind of gear used to transmit motion from C. Manganese A. Cast iron
one shaft to another shaft at an angle to the D. Martensite B. Wrought iron
first. 35. An alloy of cooper and zinc. C. Medium iron
A. Spiral gear A. Aluminum D. Low carbon iron
B. Worm gear B. Bronze 43. Materials, usually ceramics, employed where
C. Helical gear C. Brass resistance to very high temperature is required,
D. Bevel gear D. Nickel as for furnace lining and metal melting pots.
28. Which of the following is not a classification of 36. Usually a copper- tin alloy is: A. Refractories
iron ore? A. Aluminum B. Gaskets
7
 C. Insulators 50. A machine tool used principally to machine 57. A kind of gear used to transmit motion from
D. Safety shield flat or place surfaces with a single point cutting one shaft to another shaft at an angle to the
44. The softening of metals by heat treatment and tool. first.
most commonly consists of heating the metals A. Shaper A. Worm gear
up to near molten state and then cooling them B. Planer B. Spiral gear
very slowly. C. Grinder C. Helical gear
A. Annealing D. Broaching machine D. Bevel gear
B. Hardening 51. A tool used for measuring diameters. 58. The area of a machine shop where metal is
C. Normalizing A. Micrometer being melted to form a new shape is:
D. Tempering B. Tachometer A. Welding area
45. The process of producing of variety of surfaces C. Pyrometer B. Mass production area
by using a circular type cutter with multiple D. Caliper C. Foundry area
teeth. 52. The total permissible variation in the size of a D. Tool and die
A. Milling dimension; the difference between the limits of 59. A machine used in shaping metal by means of
B. Drilling the size. abrasive wheel or removal metals with an
C. Broaching A. Tolerance abrasive is called:
D. Boring B. Fits A. Planer
46. The process of working metals by the C. Allowance B. Power saw
application of sudden blows or by steady D. Clearance C. Shaper
pressure. 53. The maximum stress to which a material can D. Grinding machine
A. Rolling be subjected without a trace of any permanent 60. The ability of materials or metal to resist being
B. Forging set remaining upon a complete withdrawal of crushed is:
C. Castling the stress. A. Compressive strength
D. Turning A. Ultimate stress B. Fatigue strength
47. A welding operation in which a non-ferrous B. Rupture stress C. Torsional strength
filler metal melts at a temperature below that C. Elastic limit D. Bending strength
of the metal joined but is heated 450oC. D. Proportional limit 61. A machining operation whereby the tool
A. Spot welding 54. Fluid film desired between two surfaces having rotates while the feed is stationary.
B. Gas welding relative sliding motion. A. Shaping
C. Brazing A. Lubrication B. Milling
D. Arc welding B. Seal C. Turning
48. The operation of cooling heated piece of work C. Packing D. Reaming
rapid by dropping it in water, brine or oil. D. Safety shield 62. A machining operation whereby the tool
A. Quenching 55. A total deformation measured in the direction reciprocates and the feed is stationary.
B. Tempering of the line of stress. A. Reaming
C. Annealing A. Stress B. Planning
D. Normalizing B. Strain C. Shaping
49. A machine tool in which an abrasive wheel is C. Endurance limit D. Turning
used as a cutting tool to obtain a very degree of D. Poisson’s ratio 63. Which of the following metals is easy to chisel?
accuracy and a smooth finish on metal parts, 56. A kind of gear for heavy duty works where a A. Alloy steel
including soft and hardened steel. large ratio of speed is required and is B. Stainless steel
A. Grinding machine extensively used in speed reducers. C. Manganese steel
B. Broaching machine A. Worm gear D. Cast iron steel
C. Milling machine B. Spiral gear 64. Ferrous metals contain relatively large amount
D. Boring machine C. Helical gear of:
D. Bevel gear A. Carbon
B. Manganese
8
 C. Phosphorous B. 11 kW B. Brass
D. Sulfur C. 15 kW C. Bronze
65. Which of the following is not a strength D. 22 kW D. Chromium
property of metals? 72. The range of motor power in kW of an Engine 80. A metallic element and only metal that is
A. Tensile strength lathe machine, average service 1000 mm to liquid at ordinary temperature.
B. Rocking strength 13000 mm swing. A. Aluminum
C. Fatigue strength A. 11 to 15 kW B. Mercury
D. Torsional strength B. 7.5 to 10 kW C. Zirconium
66. Which of the following is not a kind of C. 16 to 21 kW D. Zinc
mandrel? D. 22 to 30 kW 81. Any material that retard the flow of electricity,
A. Expansion mandrel 73. A machine which can flatten surfaces on a used to prevent passage or escape of electric
B. Contraction mandrel horizontal, vertical or angular plane. current from conductors.
C. Taper mandrel A. Shaper A. Refractory
D. Gang mandrel B. Planer B. Ceramics
67. Which of the following is not a part of lathe C. Power saw C. Coating materials
machine? D. Tool grinder D. Insulation
A. Tailstock 74. The ability of metal to withstand forces thus 82. The maximum stress to which a material may
B. Headstock following a number of twists. be subjected before failure occurs.
C. Carriage A. Shear strength A. rupture strength
D. Fan B. Bearing strength B. ultimate strength
68. The range of motors power in kW of a C. Endurance limit C. yield strength
universal milling machine, max feed D. Deformation D. proportional limit
movement 1270 mm lengthwise, 355 mm 75. A property of material which relates the lateral 83. The maximum stress induced in a material
lateral, and 508 mm vertical is: strain to the longitudinal strain. when subjected to alternating repeated loading
A. 11 to 15 kW A. Stress without causing failure.
B. 16 to 21 kW B. Modulus of elasticity A. ultimate strength
C. 7.5 to 10 kW C. Poisson’s ratio B. yield strength
D. 22 to 30 kW D. Deformation C. endurance strength
69. The motor power in kW of a punch press, 50.8 76. A total resistance that a material offers to an D. rupture strength
mm hole diameter, 25.4 mm thickness, for soft applied load. 84. Fluid film desired between two surfaces having
steel is: A. Friction force relatively sliding motion.
A. 15kW B. Stress A. lube oil
B. 21 kW C. Rigidity B. graphite
C. 7.5 kW D. Compressive force C. packing
D. 30 kW 77. A total deformation measured in the direction D. lubrication
70. The range of motor power in kW of a of the line of stress. 85. The ability of material to withstand loads
cylindrical grinding machine 600 x 50 mm A. Strain without breaking down
wheel size, 2,400 to 4, 200 mm center distance B. Elasticity A. Strength
is: C. Elongation B. Elasticity
A. 11 to 15 kW D. Contraction C. Rigidity
B. 16 to 21 kW 78. An alloy of copper and zinc. 86. Materials usually ceramics, employed where
C. 7.5 kW A. Aluminum resistance to very high temperature is required
D. 22 to 30 kW B. Brass as furnace lining and metal melting pots.
71. The motor power in kW of a forming r C. Bronze A. Insulators
bending machine 1600 mm width, 508 mm D. Chromium B. Gaskets
head movement is: 79. A metallic element of copper-tin alloy. C. Packing
A. 7.5 kW A. Aluminum D. Refractories
9
87. An allying element used principally to produce 95. A machine tool used finish internal and D. hermaphrodite
stainless steel. external surfaces by the use of cutter called a 2. A machine tool used principally to machine
A. aluminum broach, which has a series of cutting edges or flat or plane surfaces with a single pointed tool.
B. brass teeth. A. Shaper
C. bronze A. lathe machine B. Planer
D. chromium B. broaching machine C. Drill
88. A coating material used to produce galvanized C. planer D. Power saw
iron. D. shaper 3. A machine tool in which an abrasive wheel is
A. Zirconium 96. A cutting tool which is made to move slowly used as cutting tool to obtained a very smooth
B. Zinc while acting on the work which is revolving on finish.
C. Aluminum a horizontal axis. A. Broaching machine
D. Chromium A. lathe machine B. Planer
89. A group of thin steel strips used for measuring B. broaching machine C. Tool grinder
clearance. C. planer D. Milling machine
A. feeler gage D. shaper 4. The process of working metals by the
B. tachometer 97. A machine tool used to produce a variety of application of sudden blows or by steady
C. micrometer surfaces by using circular type cutter with pressure.
D. caliper multiple teeth. A. Casting
90. A hand tool used to measure tension in bolts. A. lathe machine B. Turning
A. torque wrench B. milling machine C. Forging
B. tachometer C. broaching machine D. Rolling
C. shaver D. grinding machine 5. The operation of cooling a heated piece of
D. sensor 98. Used in the production of flat surfaces on work rapidly by dipping it water, brine or oil
91. Ratio of pitch diameter to the number of pieces too large or too heavy to hold in a A. Quenching
teeth. shaper. B. Annealing
A. diametrical pitch A. Planer C. Tempering
B. module B. Shaper D. Normalizing
C. contact ratio C. Grinder 6. The softening of metals by heat treatment and
D. helical overlap D. Shaver most commonly consists of heating the metal
92. A circle the radius of which is equal to the 99. Used to machine flat or curved surfaces with a up to near molten state and then cooling it
distance from the gear axis to the pitch point. tool which moves in a reciprocating motion. very slowly.
A. pitch circle A. planer A. Annealing
B. root circle B. shaper B. Indexing
C. base circle C. grinder C. Knurling
D. outside circle D. lathe D. Soldering
93. A circle coinciding with a tangent to the 100. Which of the following materials that can wear 7. A fluid film desired between surfaces relative
bottom of the tooth spaces. away a substance softer than itself sliding motion.
A. pitch circle A. Abrasive A. Lube oil
B. root circle B. Tungsten B. Lubrication
C. base circle C. Carbon C. Grease
D. outside circle D. corrosive D. Graphite
94. The method of cold working by compression. ELEMENTS 03 8. A kind of gear used to transmit motion from
A. Broaching 1. A tool with hardened steel points used for one shaft to another shaft at an angle to the
B. Lapping scribing or lying of distances. first.
C. Piercing A. Plain scriber A. Worm gear
D. Reaming B. divider B. Bevel gear
C. a trammel C. Helical gear
10
 D. Spur gear B. Mass production area B. Hydrometer
9. The principal material used in high production C. Foundry area C. Barometer
metal working tools. D. Tool and die area D. Odometer
A. Hyper- Eutectoid 17. Which of the following is not used to temper 25. The mass of the body per unit of volume.
B. High speed steel steel? A. Volume flow rate
C. Lead A. Brine salt bath B. Density
D. High speed carbon B. Oil bath C. Weight
10. A heavy rotating body which serves as a C. Water bath D. Mass
reservoir for absorbing and redistributing D. Steam bath 26. Subjecting a substance to a high temperature
kinetic energy. 18. Which of the following is not a kind of cast below the fusion point, usually to make it
A. Flywheel iron? friable.
B. governor A. Malleable iron A. Calcinations
C. shaft B. Head iron B. Fusion
D. puncher C. Gray iron C. Boiling
11. A machine used in shaping metal by means of D. White iron D. Superheating
an abrasive wheel or the removal of metals 19. The kind of center which is being attached and 27. Special metal formed when to or more metals
with an abrasive is called: meshed to the tailstock spindle which is also are melted together.
A. Planer machine static while the work is rotating: A. Monel
B. Power saw A. Dead center B. Alloy
C. Shaper machine B. Live center C. Solder
D. Grinding machine C. Focal center D. Hastalloy
12. Which of the following is not a part of lathe D. Work center 28. The ability of a moving body to perform work.
machine? 20. Which of the following is not part of the A. Internal energy
A. Tailstock headstock? B. Potential energy
B. Fan A. Spindle C. Kinetic energy
C. Carriage B. Anvil D. Flow work
D. headstock C. Back gear 29. Hardening the surface of iron- based alloys by
13. Which of the following is easy to chisel? D. Motor heating them below the melting point in
A. Cast iron 21. Which process does not belong to the group? contact with a carbonaceous substance.
B. Alloy steel A. Vise grip A. Carburizing
C. Cast steel B. Adjustable wrench B. Normalizing
D. Manganese steel C. Torque wrench C. Mar tempering
14. A machining operation whereby the tool D. Feeler gage D. Hardening
reciprocates and the feed is stationary is called: 22. Which does not belong to the group? 30. Any materials that retard the flow electricity
A. Shaping A. Resistance welding used to prevent or escaped of electric current
B. Reaming B. Soldering from conductors.
C. Planning C. Hardening A. Bricks
D. Turning D. Brazing B. Insulators
15. Which of the following is not a kind of 23. Substances having sufficient carbon and /or C. Refractories
mandrel? hydrogen for chemical oxidation to produce D. Ceramics
A. Expansion mandrel exothermally, worthwhile quantities of heat. 31. Material, usually ceramics, employed where
B. Taper mandrel A. Lubrication resistance to very high temperature is required,
C. Contraction mandrel B. Graphite as for furnace linings and metal melting pots.
D. Foundry mandrel C. Grease A. Bricks
16. The area of the machine shop where the metal D. Fuels B. Insulators
is being melted to form a new shape. 24. A device that measures atmospheric pressure. C. Refractories
A. Welding area A. Piezometer D. ceramics
11
32. A device used to prevent leakage of media. A. Tensile strength 47. In the color coding of pipe, the color for a
A. Packing B. Shearing strength pipeline of communication is:
B. Safety shield C. Compressive strength A. Light blue
C. Gasket D. Torsion B. White
D. Seals 40. The ability of metal to stretch, bend or twist C. Brown
33. The internal resistance a material offers to without breaking or cracking. D. Light orange
being deformed and is measured in terms of A. Elasticity 48. The color pipeline of fuel oil in the color
applied load. B. Ductility coding of pipe is:
A. Strain C. Brittleness A. Light blue
B. Elasticity D. plasticity B. Brown
C. Stress 41. The property of a material which resist forces C. White
D. Resilience action to pull the material apart. D. Light orange
34. The deformation that results from a stress and A. Shear strength 49. For high speed application the minimum
is expressed in terms of the amount of B. Tensile strength number of teeth in small sprocket should be:
deformation per inch. C. Compressive strength A. 18 to 24
A. Elongation D. Bearing strength B. 26 to 30
B. Strain 42. The property of steel which resist indention or C. 14 to 18
C. Poisson’ s ratio penetration. D. 24 to 28
D. Elasticity A. Hardness 50. The good deoxidizer in steel melting is:
35. The ability of the material to return to its B. Elasticity A. Manganese
original shape after being elongated or C. Ductility B. Aluminum
distorted when the forces are released. D. None of these C. Silicon
A. Elasticity 43. In the color coding of pipe, the color for a D. All of these
B. Brittleness pipeline of air is: 51. In majority of machine members, the dumping
C. Plasticity A. Light blue capacity of the material should be:
D. Creep B. Light orange A. Zero
36. The last point at which a material may be C. White B. High
stretched and still return to its unreformed D. Green C. Low
condition upon release of the stress. 44. In the color coding of pipe, the color for a D. Anything
A. Rupture limit pipeline of water is: 52. For moderate speed for mating gears, the ideal
B. Elastic limit A. Light blue ratio of contact is:
C. Proportional limit B. Green A. 1.35- 1.55
D. Ultimate limit C. Brown B. 1.0- 1.3
37. The ratio of stress to strain within the elastic D. Silver grey C. 1.25- 1.45
limit. 45. In the color coding of pipe, the color for a D. 1.25- 4.0
A. Creep pipeline of steam is: 53. The diameter of the screw thread is same as:
B. Modulus of rigidity A. Light orange A. Pitch diameter
C. Modulus of elasticity B. White B. Minor diameter
D. Poisson’s ratio C. Silver grey C. Major diameter
38. The ability of a metal to withstand forces that D. Light blue D. Base diameter
causes a member to twist. 46. The color for a pipeline of electricity in the 54. For high corrosion resistant stainless steel,
A. Shear strength color coding of pipe is: what maximum chromium content is required?
B. Tensile strength A. Light orange A. 8.0%
C. Bearing strength B. White B. 4.5%
D. Torsional strength C. Silver grey C. 1.5%
39. The ability of a material to resist being D. Light blue D. 8.5%
crushed.
12
55. At quite low temperatures (say- 75 deg. C) the A. A cutectic of iron and iron C. Brush roller
notched bar impact value of steel. phosphide D. Long
A. Increases significantly B. A gadget for measuring volume 71. Spiral gears are suitable for transmitting:
B. Decreases significantly C. A measure of magnetic induction A. Any power
C. Remain unchanged produces in a material B. Small power
D. Depends on heat treatment D. Antimony bearing lead or tin alloy C. Huge power
56. In order to realize the advantage of fluid 64. The minimum thickness of steel members D. Pulsating power
friction, it is essential to have: exposed to weather and accessible for painting 72. The type of cam used for low and moderate
A. No oil film is: speed engines is generally:
B. Converging oil film A. 4mm. A. Flat
C. Diverging oil film B. 6mm. B. Involute
D. Parallel oil film in bearing C. 8mm. C. Tangent
57. Zero axial thrust is experienced in: D. 10mm. D. Harmonic
A. Herringbone gears 65. In standard coarse thread bolt, the stress 73. Gears for wrist watches are generally
B. Helical gears concentration is maximum at: manufactured by:
C. Bevel gears A. All over the surface A. Molding
D. Worm gears B. Top surface B. Stamping
58. The maximum size of the fillet weld that can C. Root C. Galvanizing
be made in single pass is: D. Flank D. Honing
A. 3mm. 66. Which of the following ropes are more 74. The rated life of a bearing changes:
B. 6mm. flexible? A. Inversely as cube of load
C. 7mm. A. 6 to 19 B. Directly as load
D. 4mm. B. 6 to 7 C. Inversely as square of load
59. Muntz metal contains: C. 8 by 19 D. Inversely as load
A. Copper-aluminum D. 6 by 37 75. The best material for brake drum is:
B. Copper-tin 67. Tools usually used in wood pattern making in A. Cast iron
C. Copper- nickel foundry shop. B. Steel
D. Copper-zinc A. Band saw C. Aluminum
60. Steel balls for bearings are manufactured by: B. Saws and chisels D. Wrought iron
A. Cold- heading C. Knives and drills 76. An elastic body whose primary function is to
B. Casting D. Grinder deflect under load.
C. Rolling 68. Type of bolt commonly used in the A. Spring
D. turning construction that is threaded in both ends. B. Brake
61. In general, alloys with high nickel content A. Hex bolt C. Stopper
retain toughness to quite low temperature up B. Stud bolt D. Clutch
to: C. Square threaded bolts 77. Belt slip may take place because of:
A. -250 F D. Eye bolt A. Loose load
B. -360 F 69. Cast iron flywheels are commonly designed B. Heavy belt
C. -320 F with factor of safety of: C. Driving pulley too small
D. -240°F A. 9 to 12 D. All of the above
62. Manganese steel standard designation is B. 8 to 11 78. Rankine formula is valid up to slender ratio of:
SAE___. C. 10 to 13 A. 60
A. 8XXX D. 7 to 10 B. 80
B. 10XX 70. Which of the type of chain is used in C. 120
C. 12XX motorcycle? D. 150
D. 13XX A. Silent 79. In flange coupling the weakest element should
63. A Babbitt is: B. Pintle be:
13
 A. Flange D. Cold forming D. Used to form
B. Key 88. Select the one that has highest specific gravity: 97. Least shrinkage allowance is provided in the
C. Bolts A. Aluminum case of which of the following:
D. Shaft B. Lead A. Cast iron
80. A flange coupling is: C. Brass B. Aluminum
A. Used for collinear shafts D. High carbon steel C. White cast iron
B. Used for non- collinear shafts 89. Age- hardening is related with: D. Brass
C. Rigid coupling A. Cast iron 98. Dilatometer is used to find out which property
D. Flexible B. Stainless steel of molding sand.
81. Universal coupling is: C. Duralumin A. permeability
A. Used for collinear shafts D. German silver B. hot strength
B. Used for non- collinear shafts 90. Foundry crucible is made of: C. fineness
C. Type of flange coupling A. German silver D. moisture content
D. Rigid coupling B. Lead 99. Hastalloy contains:
82. In powder metallurgy the process of heating C. Mild steel A. Copper
the cold pressed metal powder is called: D. Graphite B. Nickel and copper
A. deposition 91. Trimming process is a process associated with: C. Copper and aluminum
B. granulation A. Forging D. Nickel and molybdenum
C. sintering B. Machining of metals 100. The maximum harden ability of any steel
D. precipitation C. Electroplating depends on:
83. Which one is different from the remaining? D. Press work A. The carbon content
A. nitriding 92. A plug gauge is used to measure: B. The chemical composition
B. cyaniding A. Taper bores C. The grain size
C. electroplating B. Cylindrical bores D. The alloying elements present
D. flame hardening C. Spherical holes Elements 04
84. Splines are used when: D. Screw threads 1. The hardness of steel increases if it contains:
A. The power transmitted is low 93. In arc welding operations the current value is a. Martensite
B. The power to be transmitted is high decided by: b. Pearlite
C. Axial relative motion between A. Length of welded portion c. Austenite
shafts and hub is necessary B. Voltage across the arc d. All of the above
D. Flame hardening C. Size of the electrode 2. How do you call steel with 0.8% carbon and
85. Delta iron occurs at temperature of: D. Thickness of plate 100% pearlite?
A. Room temperature 94. The phenomenon of weld decay takes place in: a. Austenite
B. Above melting point A. Cast iron b. Solidus
C. Between 1400˚C and 1539˚C B. Brass c. hyper-eutectoid
D. Between 1000˚C and 1400˚C C. Bronze d. eutectoid
86. The most important element that controls the D. Stainless steel 3. What is the range of the tensile strength of
physical properties of steel is: 95. Choose the one that will have highest cutting common varieties of cast iron?
A. Carbon speed. a. 40-60 Mpa
B. Silicon A. Aluminum b. 150-180 Mpa
C. Manganese B. Brass c. 840-500 Mpa
D. Tungsten C. Bronze d. 1500-1650 Mpa
87. The process commonly used for thermo-plastic D. Cast iron 4. Fatigue failure occurs when a part is subjected
material is: 96. Projection welding is: to:
A. Die casting A. Continuous spot welding process a. Compressive stress
B. Injection molding B. Used to make mesh b. tensile stress
C. Shell molding C. Multi- spot welding process c. torsional stress
14
 d. fluctuating stress d. Difference between the linear speed of c. Metal resistance to corrosion by coating
5. Paramagnetic alpha iron changes to gamma the rim of pulley and the on it d. Fatigue limit by overstressing the metal
iron at what temperature? 13. Which of the following is the orientation of by successively increasing loadings
a. 440°C the axes of the two shafts in cross helical 21. Up to what percent thickness of plate, edge
b. 910°C worm? preparation for welding is not needed?
c. 70°C a. Parallel a. 2 mm
d. 1639°C b. Non-parallel b. 4 mm
6. The diameter of the washer is generally: c. Intersecting c. 8 mm
a. Equal to the diameter of the bolt d. non-parallel and non-intersecting d. 12 mm
b. Slightly more than the diameter of the 14. In case of gears the addendum is given by: 22. Arc blow takes place in:
bolt a. One module a. Gas welding
c. Slightly less than the diameter of the bolt b. 2.16 x module b. Arc welding when straight polarity is used
d. Of any size that suits the application c. 1.57 x module c. Arc welding when reversed polarity is
7. The compression members tend to buckle in d. 1.25 / module used
the direction of: 15. How do you call a cam where in the follower d. Welding stainless steel
a. Axis of load reciprocates or oscillates in a plane parallel to 23. What is the function clutch in the machine
b. Minimum cross-section its axis? tool?
c. least radius of gyration a. Circular cam a. Alignment of drive
d. perpendicular to the axis of load b. reciprocating cam b. Lowering of drive
8. A kinematic chain needs a minimum: c. cylindrical cam c. To insure that two shafts line up at high
a. 2 links and 2 turning pairs d. oscillating cam speed
b. 3 links and turning pairs 16. How are gears for watches generally d. To connect shaft so that the driven shaft
c. 4 links and 4 turning pairs manufactured? will rotate with the driving shaft and to
d. 3 links and 2 turning pairs a. Die casting disconnect them at all
9. Which of the following pairs is formed if shaft b. Machining on hobber 24. The height of tooth above the pitch circle or
is revolving in a bearing? c. power metallurgy process the radial distance between pitch circle and top
a. Lower pair d. stamping land of the tooth.
b. turning pair 17. Rope brake dynamometer uses what? a. Addendum
c. sliding pair a. Oil as lubricant b. Deddendum
d. cylindrical pair b. No lubricant c. top root
10. How many links are there in a pantograph? c. grease as lubricant d. top land
a. 3 d. water as lubricant 25. How do you call the distance of the tooth
b. 4 18. Which of the following could be the effect of which is equal to the sum of the addendum
c. 5 cold working? and deddendum?
d. 6 a. Increases the fatigue strength a. Full depth
11. A pantograph is a mechanism having: b. Decreases the fatigue strength b. working depth
a. Lower pairs c. Has no influence on fatigue strength c. whole depth
b. rolling pairs d. None of these d. pitch
c. spherical pairs 19. In testing a material for endurance strength, it 26. Which of the following stresses that is
d. higher pairs is subjected to: independent of loads?
12. Which of the following describes the “slip” in a. Completely reversed load a. Shear stress
belt drive? b. Static load b. residual stress
a. Loss in power c. impact load c. design stress
b. Difference between the angular velocities d. dynamic load d. yield stress
of two pulley 20. Coaxing is the procedure of increasing: 27. Which of the following is not used to resemble
c. Difference between linear speed of the a. Metal strength the shape of tool bit?
rim b. Metal hardness by surface treatment a. Thread cutting
15
 b. center cutting 35. Piston compression rings are made of what d. tangential cam
c. square nose material? 43. Which of the following cams where the
d. round nose a. Steel follower reciprocates or oscillates in a plane
28. What is the recommended best cutting angle b. Bronze perpendicular its axis of rotation?
of drill for work on steel or cast iron? c. Aluminum a. Tangential cam
a. 39 degrees d. cast iron b. cam curves
b. 49 degrees 36. What is the usual value of helix angle of a drill? c. radial cam
c. 59 degrees a. 120 degrees d. cylindrical cam
d. 29 degrees b. 110 degrees 44. During tensile test, which of the following
29. Copper and most of its alloys can be hardened c. 60 degrees stress-strain curve(s) fits for a glass rod?
by which of the following? d. 30 degrees a. A straight line
a. Cold working 37. What is meant by drossing? b. A parabola
b. Soaking a. A method of cleaning the casting c. an irregular curve
c. Patenting b. An inspection method for casting d. a sudden break
d. case hardening c. A method of deoxidation of molten metal 45. In case of a knuckle joint, the pin is most likely
30. Types of V-belts to use in a driving pulley with d. The formation of oxides on the molten to fail in:
speed of 360 rpm and transmitting 5 Hp. metal surface a. Shear
a. Type A belts 38. If the first digit in AISI and SAE designations b. Tension
b. type B belts is one (1), then, it indicates what? c. Compression
c. type C belts a. Carbon steel d. double shear
d. type D belts b. Nickel steel 46. A single ply leather belt running at a belt
31. Which of the following is not an angle c. molybdenum steel velocity of 300 ft/min is likely to transmit per
measuring device? d. chromium steels inch of width:
a. Bevel protector 39. Which of the following where the gear tooth a. 2.5 Hp
b. Sine bar vernier is used to measure? b. 3.0 Hp
c. combination square a. Module c. 4.0 Hp
d. angle iron b. Gear tooth profile d. 5.0 Hp
32. The mould for casting ferrous materials in c. gear tooth thickness of gear tooth 47. At what temperature range where
continuous casting process is made of what d. pitch line thickness of gear tooth ferromagnetic alpha iron exists?
material? 40. A cold chisel is made of what? a. Below 723°C
a. Copper a. Mild steel b. 700-910°C
b. Medium carbon steel b. German silver c. 1000-1440°C
c. high carbon steel c. high carbon steel d. above 1539°C
d. low carbon steel d. cast iron 48. How do you call a body having identical
33. Clutch slippage while clutch is engaged is 41. It is the ability of a material to absorb energy properties all over?
especially noticeable: when deformed elastically and return it when a. Heterogeneous
a. During idling unloaded. b. Homogeneous
b. A low speed A. Creep c. Elastic
c. during acceleration B. fatigue strength d. Ductile
d. during braking C. resilience 49. How is the material described if it recovers its
34. In general, to engage securely and prevent D. toughness original dimensions when the load is removed?
dragging, what is the clearance between release 42. Which of the following cams where the a. Elastic
bearing and release collar in the clutch? follower reciprocates or oscillates in a plane b. Plastic
a. 2-3 mm parallel to the axis of rotation? c. Brittle
b. 4-5 mm a. Cam curves d. Malleable
c. 6-7 mm b. radial cam 50. What is the percentage of carbon in Eutectoid
d. 8-9 mm c. cylindrical cam steel?
16
 a. .02% a. Gear box b. Length of the column
b. 0.30% b. fan belt c. strength of the column
c. 0.63% c. flywheel d. All of the above
d. 0.80% d. front wheel 66. At what temperature those Gamma irons exist?
51. The presence of sulphur in pig iron makes: 59. What is the usual percentage of cut on the a. Between 910°C and 1400°C
a. The casting unsound return stroke of hacksaw blade? b. Between 1400°C and 1539°C
b. It brittle a. 0 c. Near melting point
c. it hard b. 5 d. Room temperature
d. it is easy machinable c. 7 67. The behavior of metals where in strength of a
52. What is the effect of alloying zinc to copper? d. 9 material is increased and the ductility is
a. Increases hardness 60. Which of the following will best describe decreased on heating at a relatively low
b. Impart free-machining sunken key? temperature after cold working is called:
c. Improve hardness and strength a. The keyway is helical along shaft a. Clustering
d. Increases strength and ductility (if added b. The keyway is cut in shaft only b. Twinning
up to 10-30%) c. The keyway is cut in hub only c. screw dislocation
53. The imperfection in the crystal structure of d. The key is cut in both shaft and hub d. strain aging
metal is: 61. Which of the following where turn buckle has? 68. Which of the following statement(s) is correct
a. Impurity a. Left hand threads on one end and right in “carbon steel castings”?
b. fracture slip hand threads on other end a. the percentage of carbon is less than
c. slip b. Right hand threads on both ends 1.7%
d. dislocation c. Left hand threads on both ends b. the percentage of carbon is between 1.7%
54. When is the pressure release in resistance d. No threads to 2%
welding? 62. Which of the following is the best process for c. the percentage for alloying elements is
a. After the weld cools butt welding of two plates each of which is 25 controlled
b. During heating period mm thick? d. none of the above
c. After completion of current a. Electro slag welding 69. Aluminum alloys for pressure die casting:
d. Just at the time of passing the current b. Gas welding a. Must not be free from hot shortness
55. If t is the thickness of sheet to be spot welded, c. submerge arc welding b. Must have iron as one of the
then electrode tip diameter is equal to _____. d. steam welding constitutions
a. t2 63. Which of the following statement(s) is correct c. Must not posses considerable fluidity
b. 2 sq rt. of t for an oil less bearing: d. Must be light
c. sq. rt. of t a. The oil film is maintained by supplying 70. Which of the following is the maximum in 18-
d. 1.5 sq. rt. of 1 oil under pressure 4-1 high speed steel?
56. A twist drill specified by which of the b. The oil film pressure is produced only by a. Tungsten
following? rotation of the journal b. Chromium
a. Its shank and diameter c. Do not need external supply of lubricant c. Argon
b. Shank, material and flute size d. Grease is needed to be applied after some d. iron
c. its diameter and lip angle intervals 71. Super conductors:
d. shank, material and diameter 64. The working load P for a chain for crane a. Exist at temperature below 10K
57. Which of the following is used to measure the applications is expressed in terms of diameter b. Are the dense metals without voids
clearance between the value and tappet of an of link “d” in cm as follows. c. Are non-metallic substances
automobile engine? a. P=1.5d2 d. Are the purest forms of metals
a. Shape gauge b. P=25d2 72. When large number of components ate turned
b. slip gauge c. P=50d2 and parted off from a bar, the chuck generally
c. feeler gauge d. P=500d2 used is:
d. vernier scale 65. The column splice is used for increasing: a. Two jaw chuck
58. Speedometer drive is generally taken from: a. Cross-sectional area of the column b. Four jaw chuck
17
 c. collet chuck a. Round out b. Shaping
d. magnetic chuck b. drift pin c. Turning
73. Cutting speed for some materials are as under c. reamer d. reaming
which one of the following could be cutting d. protractor 89. Which of the following is not a tap used for
speed for brass? 81. When measuring a drill for size, measure cutting threads in holes?
a. 30 m/min across the: a. Tapping tap
b. 40 m/min a. Margins b. plug tap
c. 80 m/min b. Flutes c. tapper tap
d. 50 m/min c. Shank d. bottoming tap
74. If V is the volume of metal in casting and A is d. point 90. Herring bone gears are gears which:
its surface area, then the time of solidification 82. How do you call the tool used for cleaning a. Do not operate on parallel shafts
will be proportional to: files? b. Have a line contact between the teeth
a. V2 , 1/A a. File cleaner c. Consists of two left handed helical gears
b. 1/V2 , A2 b. file card d. Tend to produce thrust on the shafts
c. V , 1/A2 c. file oilstone 91. Which of the following statements is true for
d. V2 , 1/A2 d. scraper the internal stresses existing in a welded
75. The draft allowance on metallic pattern as 83. The melting point of Babbitt is approximately: connection?
compared to wooden ones is: a. 1000°F a. Internal stresses are not relieved by heat
a. More b. 650°F treatment
b. Same c. 750°F b. Internal stresses are not relieved when
c. Less d. 500°F weld is peened
d. more or less depending on size 84. How is tubing measured? c. Internal stresses may be relieved when
76. Arc metal patterns are used for: a. Inside diameter weld is peened
a. Precision castings b. outside diameter d. Internal stresses are relieved by x-ray
b. Small castings c. thickness of wall analysis
c. Large castings d. wire gage 92. Stainless steel is obtained principally by the use
d. Large scale production of castings 85. Which of the following metals will respond to of which of the alloying elements?
77. What tool is used in foundry for repairing the heat treatment? a. Chromium
mould? a. Cast iron b. Nickel
a. Swab b. wrought iron c. Carbon
b. Gagger c. medium carbon steel d. tungsten
c. Bellows d. low carbon steel 93. Galvanized iron is a term referring to iron
d. rammer 86. the ability of metal to withstand loads without coated with:
78. What tool is used in foundry for smoothening breaking down is: a. Tin
and cleaning out depression in the mould? a. stress b. Zinc
a. Swab b. strength c. Magnesium
b. Gagger c. strain d. aluminum
c. Bellows d. elasticity 94. Which of the following is not a common term
d. rammer 87. Which of the following metals is non- relating to the classification of fits?
79. Which of the following does not have to be magnetic? a. Tunking
lubricated when drilling? a. Cast iron b. Snug
A. Brass b. alloy steel c. medium force fit
B. Steel c. cast steel d. bound
C. Monel d. manganese steel 95. In usual spur gearing, which of the following
D. mild steel 88. A machining operation whereby the tool statement(s) is correct?
80. The tool used in precision work to smooth or reciprocated and the feed is stationary. a. Pitch circles and base circles are the same
enlarge holes is called a: a. Planning b. Working depth includes the clearance
18
 c. Tooth outline are usually involute curves d. Magnetite 11. Which tool does not belong to the group?
d. Tooth outline are usually cycloidal curves 3. Ferrous metals contains a relative large amount a. Vice grip
96. In general, the design stress and factor of of: b. Feeler gage
a\safety are related as follows: a. Manganese c. Torque wrench
a. Design stress=ultimate stress times factor b. Carbon d. Adjustable wrench
of safety c. Sulfur 12. Which of the following metals is non –
b. Design stress= ultimate stress divided by d. Phosphorous magnetic?
factor of safety 4. Which of the following metal is easy to chisel? a. Manganese steel
c. Factor of safety= design stress divided by a. Alloy steel b. Cast steel
ultimate stress b. Manganese steel c. Alloy steel
d. Ultimate stress=factor of safety divided by c. Stainless steel d. Cast iron
design stress d. Cast iron 13. One important skill that operators of machine
97. In usual spur gearing, the: 5. The ability of material or metal to resist being tools must have is an understanding of
a. Pitch circle and base circle are the same crushed is: measurement which demands:
b. Working depth includes clearance a. Fatigue strength a. Speed
c. Tooth outline are always cycloidal curves b. Bending strength b. Precision
d. Tooth outline are usually involute curves c. Torsional strength c. Sociability
98. Which of the following is the not the other d. Compressive strength d. Neatness
name of circumferential stress for thin walled 6. Which of the following is not part of the 14. Which of the following is not part of a lathe
cylinders. headstock? machine?
a. Hoop stress a. Anvil a. Fan
b. girth stress b. Spindle b. Carriage
c. tangential stress c. Motor c. Headstock
d. longitudinal stress d. Back pressure d. Tailstock
99. How do you call the ratio of the volumetric 7. Which of the following is not used to temper 15. The machine which can flatten surface on a
strain? steel? horizontal, vertical or angular plane is:
a. Modulus in shear a. Oil bath a. Drilling machine
b. Stress to strain ratio b. Brine/salt bath b. Shaper machine
c. volumetric ratio c. Steam bath c. Power saw
d. bulk modulus d. Water bath d. Lathe machine
100. Hearing bone gears are gears which: 8. Which of the following is not a kind of cast 16. Which of the following is not the work of a
a. Do not operate parallel shafts iron? machinist?
b. Have a line contact between the teeth a. Gray iron a. Reboring
c. Tend to produce and thrust on the shafts b. White iron b. Overhauling
d. Consists of two left handed helical gears c. Malleable iron c. Grinding
ELEMENTS 05 d. Lead iron d. Boring
1. The ability of metals to stand loads without 9. A machinery operation whereby the tool 17. The area of the machine shop whose metal is
breaking down: rotates while the feed is stationary. being melted to form a new shape is the:
a. Strain a. Shaping a. Foundry area
b. Stress b. Milling b. Tool and die
c. Elasticity c. Turning c. Welding
d. Strength d. Reaming d. Mass production are
2. Which of the following is not a classification of 10. What process does not belong to the group? 18. A machine use in testing steel generally strikes
iron ore: a. Brazing the specimen with energy from 220 to 255 ft-
a. Siderite b. Soldering lb.
b. Hermatite c. Hardening a. Izod test
c. Sulfurite d. Resistance welding b. Charpy test
19
 c. Rockwell test d. Babbitt 34. A joint between two overlapping members in
d. Test blocks 27. Milling machine accessories are used to hold which the overlapped edge of one member is
19. An iron in which most of the carbon is milling cutter in the milling machine: welded with a fillet weld:
chemically combined with the iron: a. Spindle-nose tooling a. A single welded lock joint
a. Cast iron b. Milling machine vise b. Double-welded lap joint
b. Gray iron c. Vertical milling attachment c. A single-welded lap joint with backing
c. White iron d. Milling machine arbors d. Tack weld
d. Malleable iron 28. the size of an equal-leg length fillet weld shall 35. Imparts of reciprocating motion to a single-
20. Through how many degrees must an involute be based on the length of the largest: point cutting tool:
cam turn in order to raise its follower 3 inches a. Isosceles right triangle a. Dividing head
if the diameter of the base circle is 5 inches? b. Square b. Slotting attachment
a. 58.7 degrees c. Right triangle c. Circular pitch
b. 180 degrees d. Rectangle d. Circular milling attachment
c. 64.4 degrees 29. If gears cannot connect parallel shafts, they are 36. The follower reciprocates or oscillates in a
d. 68.79 degrees called: plane perpendicular to the axis of rotation of
21. The space between the adjacent teeth? a. Cyclodial gears the cam.
a. Tooth b. Helical gears a. Redial cam
b. Flank c. Spur gears b. Cylindrical cam
c. Backlash d. Toothed gears c. Cam curves
d. Width 30. The path traced by a point moving at a fixed d. Tangential cam
22. An iron has physical properties closely distance from an axis and with a uniform 37. Strength of a material is that of a stress
resembling those of mild steel: motion to the axis and a point moving such a intensity determined by considering the
a. Malleable cast iron path: maximum test load to act over the original area
b. Malleable iron a. Helical motion of the test specimens:
c. White iron b. Spherical motion a. Yield point
d. Gray iron c. Translational b. Ultimate strength
23. Gears used to transmit power between shafts d. Path of a point c. Breaking strength
axis of which it intersects: 31. The maximum stress which is reached during a d. Elastic strength
a. Spur gears tension test: 38. The follower reciprocates or oscillates in a
b. Bevel gears a. Stress plane parallel to the axis of the rotation:
c. Helical gears b. Electricity a. Cam curves
d. Straight bevel gears c. Strain b. Cylindrical cam
24. An important accessories of milling machines: d. Tensile strength c. Tangential cam
a. Milling machine vise 32. The frustums of two cones are used in a d. Radial cam
b. Cutters manner to permit a variation of velocity ratio 39. A test for pipe used for coiling in sizes 2
c. Ram between two parallel shafts: inches:
d. Vertical milling attachment a. Evans friction cones a. Flaring
25. They are usually the steel or steel casting: b. Bevel cones b. Crush
a. Mild steel c. Spherical cones c. Flange
b. Carbon steel d. Friction gearing d. Bend
c. Fire box steel 33. Weld – metal impact specimen shall be taken 40. An alloy of tin, copper, antimony, or
d. Drop-forge-dies across the weld with one face substantially sometimes lead:
26. The cheapest and the most abundant parallel to and within: a. Gold
engineering material. a. ¾” b. Babbitt
a. Aluminum b. 1/32” c. Aluminum
b. Steel c. ¼” d. Cast iron
c. Cast iron d. 1/16”
20
41. A weld place in a groove between two abutting 48. The ratio of stress to the corresponding strain has fractured and is expressed as percentage
members: below the proportional limit: increase of the original gage length:
a. Full-fillet weld a. Stress-strain diagram a. Elongation
b. Tack weld b. Gage method b. Strain
c. Butt weld c. Modulus of elasticity c. Stress
d. Fillet weld d. Tensile strength d. Elastic limit
42. A weld of approximately triangular cross- 49. The shearing strain of a block of metal, 3 56. It is used to enable milling machine to take
section that join two surfaces of approximately inches high is subject to a shearing high force climb milling cuts:
right angles as in lap joint, tee-joint, corner which distorts the top surface through a a. Helical driving mechanism
joint: distance of 0.0036 inch. : b. Spindle
a. Single welded lap joint a. 0.0015 rad. c. Read out
b. Fillet weld b. 0.008 rad. d. Backlash eliminator
c. Tack weld c. 0.0010 rad. 57. A weld made to hold the parts of weldment in
d. Butt weld d. 0.0012 rad. proper alignment until the final weld are
43. A corrosion occurs within or adjacent to a 50. Determine the number of teeth in a driver of made:
crevice formed by contact with another piece two spur gears mesh which has a velocity ratio a. Butt weld
of the same or another metal: of 0.75. the driven gear has 36 teeth: b. Tack weld
a. Pitting a. 50 c. Fillet weld
b. Galvanic b. 46 d. Full-fillet weld
c. Erosion c. 26 58. The change in length per unit original length
d. Crevice d. 48 is:
44. Wheels are sometimes used for the 51. Within the elastic limit, the stress is a. Strain
transmission of high power when an proportional to strain. b. Stress
approximately constant velocity ratio is desired: a. Hooke’s law c. Deformation
a. Bevel cones b. Modulus of elasticity d. Elastic modulus
b. Friction gearing c. Offset ratio 59. The temperature above which the alloy is
c. Spur friction wheels d. Buckingham’s principle liquid and will run:
d. Evans friction wheels 52. The corrosion of iron or iron-base-alloys: a. Melting point
45. Gearing in which motion or power that is a. Rusting b. Fow point
transmitted depends upon the friction between b. Crazing c. Pour point
the surfaces in contact: c. Chalking d. Liquids
a. Bevel gears d. Fritting 60. A cone formed by elements which are
b. Spur friction wheels 53. Steel containing large amount of mild nickel perpendicular to the elements of the pitch
c. Evans friction cones and chromium: cone at the large end:
d. Friction gearing a. Carbon steel a. Cone distance
46. A bevel gears of the same size mounted on a b. Stainless steel b. Back cone
shaft of 90 degrees: c. Alloy steel c. Root cone
a. Crown gears d. Cat steel d. Cone center
b. Spur gears 54. It refers to any layer or deposit of extraneous 61. The machine used for testing of very thin steel
c. Angular gears material of the heat-transfer-surface: or surface layers:
d. Miter gears a. Low line a. Charpy test
47. A fillet weld whose size is equal to the b. Pressure drop b. Izod test
thickness of the thinner joint member: c. Fouling c. Description test
a. Butt joint d. Scaling d. Rockwell test
b. Butt weld 55. The total amount of permanent extension of 62. A gear is one in which angle is 90 degrees that
c. Tack weld the gage length measured after the specimen is the pitch cone has become a plane.
d. Full-fillet weld a. Crowned gear
21
 b. Angular gear d. 50,000 lb 77. Which of the following is the differential of
c. Miter gear 70. An oil storage tank roof formed to the shear equation:
d. Spiral gear approximately spherical surfaces, supported a. Bending moment
63. The deterioration of organic coating only at its periphery: b. Load of the beam
characterized as completely: a. Self-supporting umbrella roof c. Tensile strength of the beam
a. Chalking b. Self-supporting cone roof d. Slope of the beam
b. Rusting c. Self-supporting 78. Which of the following materials to be utilized
c. Chocking d. Supported cone roof to reduce cost in the manufacturing of large
d. Fritting 71. The unit of deformation is called: worm gears?
64. Is a form of correction that develop on a highly a. Torsion a. Alloyed aluminum
localized areas on a metal surfaces: b. Strain b. Bronze rim with cast iron spider
a. Crevice c. Stress c. Cast iron rim with bronze spider
b. Erosion d. Shear d. All of these
c. Galvanic 72. A circle bounding the bottom of the teeth: 79. It is hardening treatment whereby a cast metal
d. Spitting a. Addendum circle is being heated to a very high temperature then
65. Test is designed primarily for application to b. Addendum cylinder suddenly subjected to rapid cooling to improve
electric-welded tubing for detection of lack of c. Pitch circle hardenability or wear resistance is called:
penetration or overlaps resulting from flash d. Deddendum circle a. Normalizing
removal in the weld: 73. A 3” diameter short shaft carrying 2 pulleys b. Tempering
a. Butt weld close to the bearings transmit how much c. Annealing
b. Paste horsepower if the shaft makes 280 rpm. d. Quenching
c. Lap weld a. 199 Hp 80. Determine the estimated weight of an A-36
d. Double butt weld b. 198 Hp steel plates size 3/16 x 6’ x 20’.
66. Have the same thermal and minimum film c. 200 Hp a. 919 lbs
thickness limitation bearing. d. 210 Hp b. 1012 lbs
a. Ball bearing 74. A cylindrical tank with 10 in. inside diameter c. 829 lbs
b. Roller bearing contains oxygen gas at 250 psi. Calculate the d. 735 lbs
c. Thrust bearing required wall thickness in (mm) under stress of 81. The length of arc between the two sides of a
d. Oil bearing 28,000 psi. gear tooth on the pitch circle:
67. An oil storage roof formed to approximately a. 11.44 mm a. Circular thickness
the surface of a right cone, supported only at b. 11.34 mm b. Axial plane
its periphery: c. 10.6 mm c. Helix angle
a. Self-supporting umbrella roof d. 10.3 mm d. Chordal curves
b. Self-supporting dome roof 75. The minimum clearance allowed for meshing 82. Split pulley or pulley made of separate section
c. Supported cone roof spur gears with a circular pitch of 0.1571 and bolted together at the rim, the maximum speed
d. Self-supporting cone roof diametral pitch of 20. The spur gears have 25 should be limited to about _______% of the
68. Test sometimes referred to as an upsetting test: teeth. maximum speed of solid pulley.
a. Bend a. 0.007855 a. 65 to 75 %
b. Flaring b. 0.007558 b. 45 to 50 %
c. Flange c. 0.008578 c. 55 to 60 %
d. Crush d. 0.007585 d. 80 to 90 %
69. What load P which causes a total deformation 76. SAE steel that corresponds to heat treatment: 83. Killed steel is very much associated with:
of 0.036 inch. Of steel rock which has a cross- a. SAE 1060 a. Manganese
section area of 4 in2 and a length of 6 ft. b. SAE 1117 b. Sulphur
a. 55,000 lb c. SAE 1030 c. Phosphorous
b. 40,000 lb d. SAE 1020 d. Silicon
c. 60,000 lb
22
84. Determine the estimated weight of an A-36 combined molybdenum to increase the depth b. Ring gear
steel plate of size ½ x 4 x 8. hardening. c. Miter gear
a. 280 kg a. Manganese chromium steel d. Internal gear
b. 332 kg b. Chromium-molly steel 98. It has molybdenum alloy except:
c. 301 kg c. Chorome-nickel-molly steel a. SAE 43XX
d. 297 kg d. Manganese-molly steel b. SAE 41XX
85. A type of welding whereby a wire or powder 91. Split pulley or pulley made of separate sections c. SAE 6XXX
from the nozzle of a spray gun is fused by a gas bolted together at the rim, the maximum speed d. SAE 5XXX
plain, arc or plasma jet and the molten should be limited to about _______% of the 99. To prevent leakage in dynamic seal:
particles are projected in a form of a spray by maximum speed of solid pulley. a. Gasket
means of compressed air or gas. a. 65 to 75 % b. Seals
a. Electro-slug building b. 45 to 50 % c. Felts
b. Electro-beam welding c. 55 to 60 % d. Packings
c. Plasma-arc welding d. 80 to 90 % 100. Which of the following elements when large
d. Metal spray welding 92. Major component of bronze casting is quantity is harmful to the ferrous metal?
86. Heating of metal above the critical temperature a. Copper a. Sulfur
and then cooling slowly usually in the furnace b. Manganese b. Silicon
to reduce the hardness and improve the c. Zinc c. Zinc
machinability is called: d. Lead d. Aluminum
a. Normalizing 93. Galvanized steel plate is: ELEMENTS 06
b. Annealing a. Aluminum 1. Metal characteristics that withstand forces that
c. Tempering b. Tin causes twisting.
d. Quenching c. Zinc A. Torsional strength
87. Accident prevention is: d. Manganese B. Modulus of elasticity
a. An association of employers, organization 94. What heat treatment process can cast steel C. Twisting moment
and individuals materials of high chrome, high manganese, etc. D. Elasticity
b. The foreman’s responsibility just as type steel be subjected for the purpose of 2. Fillet radius in machine parts is usually
much as production matching process? introduced to:
c. The responsibility of top management a. Annealing A. Improve the look of the parts
d. A job of a safety director b. Tempering B. Reduce concentration of stress and
88. Major component of bronze casting: c. Normalizing extend life of the parts
a. Copper d. Quenching C. Avoid obstruction
b. Manganese 95. Cast alloy steel for very high temperature D. Necessary to lessen casting weight
c. Zinc application: 3. Type of bolt commonly used in the
d. Lead a. Manganese-nickel steel casting construction that is threaded on both ends.
89. Commonly utilized / cheapest shaft material b. High chrome steel casting A. Stud bolt
available in the market with carbon content of c. Chrome-nickel steel casting B. Acme thread bolts
0.28 to 0.34 %. d. High manganese casting C. Square threaded bolts
a. SAE 1432 96. Flexible material used to seal pressurized fluids, D. Hex bolts
b. SAE 4320 normally under dynamic condition: 4. Hydrostatic bearing is one which:
c. SAE 1030 a. Nylon A. The lube oil is supplied under pressure
d. SAE 4130 b. Seal B. Lube oil is not pressurized
90. Alloy steel known for its resistance to c. Teflon C. There is no lube oil
corrosion, abrasion and wear that is usually d. Packing D. Bearing is lightly loaded
ideal for mill grinding of ore in cement and 97. A type of gear tooth cut inside a cylinder or 5. Which of the following materials is unsuitable
concentrator application. It is usually ring: as a bearing?
a. Rack gear A. Teflon
23
 B. Low carbon steel 12. The hardness of helical and herringbone gear D. Type D belts
C. Cast iron teeth after treatment is 210 to 300 brinell 19. The arbitrary modification by removing a small
D. Nylon hardness for gear and pinion is at: portion of a tooth at the tip of gear tooth is
6. Safety features that must be placed and A. 360 brinell min. called.
maintain at machine, blacksmith, welding and B. 400 brinell max. A. Tip removal
foundry shop. C. 340-350 normal B. Tip undercut
A. Safety goggle D. All of these C. Tip relief
B. Walkway guide 13. A type of gear commonly used in parallel shaft D. Pressure angle cut
C. Safety notices and markings transmission especially when a smooth 20. The first derivative of kinetic energy with
D. all of these continuous action is essential as in high speed respect to velocity is:
7. The angle at the base of the cylinder of an drives up to 12,000 fpm: A. Power
involute gear that the tooth makes with the A. Bevel gear B. Acceleration
gear axis. B. Herringbone gear C. Momentum
A. Base helix angle C. Spur gear D. None of these
B. Pressure angle D. Helical gear 21. What is the difference between brass and
C. Arc of recess 14. It is used in conjunction with circular cross bronze?
D. Arc of approach sectional members to retain oil and prevent A. Brass is composed of copper and zinc
8. A kind of thread that is generally used: dirt, foreign particles, moisture and to permit while bronze is composed of copper and
A. UNEC pressure differential between exterior and tin
B. UNC interior of the applied part. B. Brass is composed of copper and zinc
C. UNF A. Seal while bronze is basically copper and tin
D. UNEF B. Gasket plus non ferrous alloy such as manganese,
9. Which of the following acronyms is not C. Safety shield aluminum, and chromium
generally used as standard? D. Packing C. Bronze is reddish in color while brass is a
A. ASTM 15. An object thrown upward will return to earth mixture of copper and antimony
B. SAE with the magnitude of the terminal velocity D. Bronze is mostly an alloy of copper and
C. IPS equal to: tin while brass is a mixture of copper of
D. AISI A. Zero copper and antimony.
10. What is the difference between the shaper and B. One-half the initial velocity 22. The reciprocal of the diametral pitch
planer? C. Twice the initial velocity equivalent to the ratio of pitch diameter to the
A. The tool of the shaper moves while on D. The initial velocity number of teeth:
the planer is stationary. 16. A liquid metal: A. Lead
B. The shaper can perform slotting A. Mercury B. Clearance
operation while the planer cannot. B. Lead C. Module
C. The shaper handles large pieces while the C. Zinc D. Involute
planer handles only small pieces. D. Aluminum 23. What is the property of a material which resists
D. The tool of the shaper moves in 17. What type of gear which can transmit power at forces acting to pull the material apart?
reciprocating motion while tool in the a certain angle? A. Shear strength
planer moves in rotary motion. A. Helical gear B. Tensile strength
11. The path of contact i9nvolute gears where the B. Worm gear C. Torsional strength
force is actually transmitted. It is a straight C. Bevel gear D. Compressive strength
imaginary line passing through the pitch point D. Herringbone gear 24. Which do not belong to foundry or metal
and tangent to the base circle. 18. Type of V-belt to use in driving pulley with casting shop?
A. Principal reference plane speed of 360 rpm and transmitting 5 Hp. A. Shake-out machine
B. Pitch point A. Type C belts B. Molding machine
C. Front angle B. Type B belts C. Core making
D. Line of action C. Type A belts D. Forging machine
24
25. The enter of gravity of a solid pyramid or cone A. Patenting 39. In a pair of gears, ________is the plane
with a total height of H is: B. Cold working perpendicular to the axial plane and tangent to
A. 1/4 H C. Case hardening the pitch surface.
B. 3/5 H D. Soaking A. Pitch
C. 1/3 H 33. A type of coupling that alloys slight amount of B. Pitch plane
D. 1/3 H torsional angular flexibility due to introduction C. Pitch circle
26. The gradual chemical reaction by other with some elastic material cylindrically D. Pitch point
substance such that the metal is converted to wrapped around the bolts in the flange. 40. What type of gear is used for high speed
an oxide or other compounds: A. Simple elastic bonded coupling operation?
A. Corrosion B. Elastic material bushed coupling A. Helical
B. Cheaping C. Elastic material bonded coupling B. Spur
C. Rusting D. All of these C. Bevel
D. Weathering 34. Outstanding safety record contributes to: D. Worm
27. A material that should be avoided in A. High productivity 41. V-belts operate at speed of about (fpm)
constructing wood pattern: B. Outstanding performance that expects A. 4500
A. Sap wood reward from management B. 4400
B. Kiln dried wood C. Confidence in foreman’s ability to C. 4200
C. Heart wood perform well D. 3600
D. Core portion of wood D. Pride and enthusiasm to one-self 42. Name the type of chuck commonly used for
28. What is the moment of inertia of a rectangle 35. The capacity of metal to withstand load holding work piece in a lathe operation?
about its base? without breaking is: example, a 3-jaw universal chuck, 4-jaw
A. BH2/6 A. Strength independent chuck
B. BH3/3 B. Stress A. Magnetic jaw chuck
C. BH2/3 C. Elasticity B. 2-jaw independent
D. BH3/12 D. Strain C. 8-jaw universal
29. What is the modulus of elasticity if the stress is 36. Finding the resultant of two or more forces is D. Combination
44,000 psi and a unit strain of 0.00105? called: 43. For a high corrosion resistant stainless steel,
A. 41.905 X 106 A. Coplanar force what minimum chromium content is required?
B. 42.300 X 106 B. Non-coplanar force A. 8%
C. 41.202 X 106 C. Couple B. 4.3%
D. 43.101 X 106 D. Composition of forces C. 1.1%
30. Which of the following is not a structural steel 37. A machinery operation whereby done with the D. 5.8%
class? work accurately fastened has a reciprocating 44. Clearance to a new boiler installation to the
A. Low carbon steel (forward and backward) motion and the tool existing or old plant building should follow a
B. Stainless steel head is stationary. minimum clearance of _________ between
C. Medium carbon steel A. Shaping top of the boiler proper and the ceiling as
D. Tool and die steel B. Planning stated in the PSME code.
31. What happens to a drill if the operating speed C. Turning A. 2000 mm(max)
is too fast? D. Reaming B. 1000 mm(max)
A. Drill will crack 38. The phenomenon of continuous stretching C. 2130 mm(max)
B. Drill will become overheated and will under load even if the stress is less than the D. 2150 mm(max)
bend yield point: 45. Ordinary steel begins to lose strength and
C. Drill will become overheated and will be A. Elasticity elasticity significantly at about _______
drawn from steel B. Ductility degrees Fahrenheit.
D. Drill will become very dull and wear fast C. Plasticity A. 900-1000oF
32. Copper and most of its alloy can be hardened D. Creep B. 800-900OF
by: C. 750-850OF
25
 D. 600-700OF C. Composite beam C. Harder
46. Statement that a given body is in static D. Axially end loaded beam D. More malleable
equilibrium means that the body cannot. 53. Past ME Board Question 59. Past ME Board Question
A. Have any type of motion One of the causes of spur gear tooth breakage is the Considering a maximum safe center distance of
B. Be acted upon by more than one force unbalanced load on one end of the tooth that sprockets should be _____ pitches. Very long center
C. Undergo any displacement results in higher stresses than when the load is distance cause catenary tension in the center.
D. Have any acceleration evenly distributed. To minimize this problem, the A. 70
47. Most effective alloying element for reducing face width “b” should not. Be greater than the B. 80
brittleness of steel at a very low temperature. thickness (or pitch) of the tooth. In the absence of C. 60
A. Manganese test values, the following can be guide. D. 50
B. Molybdenum A. .25PC<b<4Pc 60. Past ME Board Question
C. Silicon B. .20Pd<b<4Pd Hypoid gear is a special type of gear like:
D. Nickel C. .25Pd<b<4Pd A. Worm gear
48. Normal stress relieving temperature for cast D. .20Pd<b<4Pc B. Spur gear
steel : 54. Past ME Board Question C. Herringbone gear
A. 200 to350 oF The property that characterizes a material ability to D. Bevel gear
B. 400 to 500 oF be drawn into a wire 61. Past ME Board Question
C. 300 to 400 oF A. Ductility The maximum stress to which a material may be
D. 450 to 550 oF B. Thermal conductivity subjected before failure occurs:
49. It is advised that in rubber belts application / C. Tensile strength A. Ultimate strength
mounting it should have an initial tension of D. Endurance limit B. Ultimate stress
________ inch/ply. 55. Past ME Board Question C. Endurance limit
A. 18 to 24 Deals only with the motion of the bodies without D. Tensile stress
B. 15 to 20 reference to forces that cause them: 62. Past ME Board Question
C. 12 to 15 A. Dynamics A property of material which relates the lateral
D. 10 B. Kinetics strain to the longitudinal strain
50. Past ME Board Question C. Statistics A. Stress
Non- Ferrous filler metal is melted into grooves D. Kinematics B. Strain
or as fillet on the mother metal; the base metal 56. Past ME Board Question C. Poisson’s ratio
is not melted. This is commonly used for In shear pin or breaking pin design, we may use the D. Strength
joining iron based machine parts or in repair data experienced by Link-Belt for 1/8 inch to 1 inch 63. Past ME Board Question
works of some materials it is called: pins and the breaking stress _____ ksi. All are associated with the grade of steel except:
A. spot welding A. 40 A. SAE 42XX
B. braze welding B. 55 B. SAE 13XX
C. brazing C. 50 C. SAE 10XX
D. gas welding D. 48 D. SAE 74XX
51. Past ME Board Question 57. Past ME Board Question 64. Past ME Board Question
What is the common shop practice to prevent solder Recommended best cutting angle of drill for work Poisson’s ratio is the ratio of:
from running away from surface to be joined? on steel or cast iron is _____ degrees. A. Shear strain to compression strain
A. Surround the word with day A. 48 B. Elastic limit compressive strain
B. Introduce around the work rolled wet cloth B. 63 C. Lateral strain to longitudinal strain
C. Put asbestos sheeting around the work C. 59 D. Elastic limit to proportional limit
D. All of these D. 50 65. Past ME Board Question
52. Past ME Board Question 58. Past ME Board Question Which of the following is not structural class of
The three-moment equation may be used to analyze Cold working of steel plates make the metal _____. steel?
A. Tapered column A. Tougher A. Low carbon steel
B. Continuous beam B. More ductile B. Tool and die steel
26
C. High chrome alloy steel It is a science of motion that can be solved in terms B. Uniform motion
D. High strength low alloy steel of scalar or vector algebra: C. Acceleration
66. Past ME Board Question A. Kinematics D. None of these
The product of the resultant of all forces acting on a B. Curvilinear translation 79. Past ME Board Question
body and the time that the resultant acts: C. Projectiles Length of contact between two mating parts in a
A. Angular impulse D. Acceleration screw and nut threads measured axially is called:
B. Angular momentum 73. Past ME Board Question A. Arc of contact
C. Linear impulse Permanent deformation or strain may occur without B. Depth of engagement
D. Linear momentum fracture. C. Length of engagement
67. Past ME Board Question A. Malleability D. Axis of contact
The smallest area at the point of rupture of a tensile B. Elasticity 80. Past ME Board Question
specimen divided by the original area is called: C. Ductility The distance a helical gear or worm would thread
A. Percentage elongation D. Plasticity along its axis is called: _____
B. Izod test 74. Past ME Board Question A. Length of action
C. Charpy test The ability of a metal to be deformed considerably B. Length of contact
D. Percentage reduction of the area without rupture is called: C. Land
68. Past ME Board Question A. Malleability D. Lead
It equalizes the energy exerted and the work done B. Elasticity 81. Past ME Board Question
thus preventing excessive or sudden changes of C. Ductility Major and minor diameters are commonly used in:
speed: D. Plasticity A. Screw thread
A. Flywheel 75. Past ME Board Question B. Bolts
B. Balance wheel When two elastic bodies collide, which of the C. Gear
C. Flywheel pulley following laws can be used to solve for the resulting D. All of these
D. All of these velocity? 82. Past ME Board Question
69. Past ME Board Question A. Dalton’s law A lathe with multiple cutting stations:
A mechanism which usually do the indexing in a B. Avogadro’s law A. Turret lathe
machine tool: C. Conservation of energy B. Engine lathe
A. Universal chuck D. Conservation of momentum and C. Manual lathe
B. Slooter conservation of energy D. None of these
C. Dividing head 76. Past ME Board Question 83. Past ME Board Question
D. Indexing When the hole is smaller than the shaft, it will take The nominal diameter of the bolts is the:
70. Past ME Board Question pressure to put the parts together. The allowance is A. Major diameter
Metal that assists lubrication or lubricant in itself: said to be negative and is termed: B. Minor diameter
A. Zinc A. Negative tolerance C. Mean diameter
B. Antimony B. Negative allowance D. All of these
C. Babbit C. Negatives fits 84. Past ME Board Question
D. Lead D. Interference of metal Ratio of unit lateral deformation to the unit
71. Past ME Board Question 77. Past ME Board Question longitudinal deformation:
A system of forces in space is in equilibrium. If two Device used to measure accurately speed: A. Poissons ratio
unequal and opposite collinear forces are added, A. Speedometer B. Strain
which of the following if any is true? B. Dial indicator C. Stress
A. Equilibrium is maintained C. Tachometer D. Modulus of rigidity
B. Equilibrium is destroyed D. Dial gauge 85. Past ME Board Question
C. An unbalance moment exists 78. Past ME Board Question For moderate speed of mating gears, the ideal ratio
D. None of these is true If the velocity of a mass is the same all the time contact is:
72. Past ME Board Question during which motion takes place is called: A. 1.25 – 4.00
A. Deceleration B. 1.20 – 1.45
27
C. 1.00 – 130 B. Spindle gear B. 0.50
D. 0.35 – 1.45 C. Change stud gear C. 0.56
86. Past ME Board Question D. All of these D. 0.44
A shaft is to be checked for concentricity. A suitable 93. Past ME Board Question 99. Past ME Board Question
method of performing the check is: It is the difference of addendum and addendum Alloy that improves strength of steel at high
A. Bench centers and dial indicator which is equivalent to the whole depth less working temperature application
B. Line shafting bearing alignment depth. A. Tungsten
C. Observing vibration of the shafting A. Fillet space B. Molybdenum
D. None of these B. Filet radius C. Chromium
87. Past ME Board Question C. Clearance D. All of these
A kind of thread in which the width of the thread is D. Backlash 100. Past ME Board Question
approximately equal to the depth of the thread and 94. Past ME Board Question A furnace used in melting ferrous metals:
the space between threads are approximately equal. Machine tool used for straight lines on metal A. Annealing furnace
A. Square thread surfaces mad of sharp tool steel is called. B. Tempering furnace
B. Acme thread A. Plain scriber C. Induction furnace
C. Buttress thread B. A trammel D. Normalizing furnace
D. Whitworth thread C. Hermaphrodite caliper Element 07
88. Past ME Board Question D. Divider 1. Past ME Board Question
Which of the following is not used to resemble the 95. Past ME Board Question A furnace used in melting non-ferrous metals.
shaped of tool bit? All are associated with standard material specified A. cupola furnace
A. Round nose except: B. crucible furnace
B. Center cut A. American Iron and Steel Institute C. induction furnace
C. Square nose B. Society of Automotive Engineers D. tempering furnace
D. Thread cutting C. Southeast Asia Iron and Steel Institute 2. Past ME Board Question
89. Past ME Board Question D. American Society for Testing Materials Endurance strength is nearly proportional to the
Negative allowance is also called: 96. Past ME Board Question ultimate strength but not with:
A. Interference of metal The best instrument for measuring a thousand of an A. yield strength
B. Feeler gage inch: B. design stress
C. Micrometer A. Micrometer C. shear stress
D. Tolerance B. Tachometer D. all of the above
90. Past ME Board Question C. Calliper 3. Past ME Board Question
A property of matter which causes it to resist any D. Pyrometer Liners are normally made of:
change in its motion or state of rest: 97. Past ME Board Question A. cast iron
A. Brake Tooth width measured along the chord at the pitch B. alloyed bronze
B. Friction circle: C. alloyed steel
C. Inertia A. Flank D. alloyed aluminum
D. Impulse B. Face width 4. Past ME Board Question
91. Past ME Board Question C. Width of space Need in as cast condition steel casting with carbon
Separate forces which can be so combined are D. Chordal thickness content less than_________% C.
called: 98. Past ME Board Question A. 0.26
A. Non-concurrent forces In the gear design, the total work load must be B. 0.20
B. Couple equally shared by its arms. Rim must be rigid to C. 0.15 to 0.16
C. Combined forces support these arms and also the head is D. 0.25
D. Concurrent forces recommended for its stiffening value. The 5. Past ME Board Question
92. Past ME Board Question assumption in the detailed design of rim thickness The yield strength of a regular yellow brass (65 to
A lathe machine threading mechanism and depth of bead is ____ circular pitch (PC). 70% Cu, 30 to 35% Zn) can be
A. Reversed gear and lever A. 0.65 increased/improved by:
28
 A. cold working The usual ratio of water to soluble oil used as cutting D. Spur gear
B. tempering fluid: 19. Past ME Board Question
C. chill casting A. 50% water to 50% oil Busses that are independent loads:
D. heat treatment B. 2 water to 1 oil A. Working stress
6. Past ME Board Question C. 3 water to 1 oil B. Operating stress
The purposes of these parts in application are to D. 4 to 80 water to 1 oil C. Residual stress
have better bearings to seal the guard against 13. Past ME board Question D. shear stress
marring; etc. Killed steel is always associated with: 20. Past ME Board Question
A. bearing journal A. Silicon The Distance of the tooth, which is equal to the sum
B. metallic seal B. Manganese of the addendum and deddendum:
C. washer C. Phosporous A. full depth
D. shaft seal D. Sulfur B. whole depth
7. Past ME Board Question 14. Past ME Board Question C. working depth
Metals are conducive because: Which of the following does not belong to the D. deddendum
A. the electron are loosely bound to the nuclei group? 21. Past ME Board Question
and therefore mobile A. welding This concave portion of the tooth profile where it
B. having characteristic metallic luster B. Soldering joints the bottom of the tooth space:
C. they are on the left side of the periodic table C. Casting A. fillet curve
D. they have extra electrons as exhibited by D. brazing B. fillet radius
normally possible balance state 15. Past ME Board Question C. bottom depth
8. Past ME Board Question Which of the following is most popular soldering of D. fillet
It is considered semi-solid lubricant: metal? 22. Past ME Board Question
A. lube oil A. 10/80 In gear design, the ratio of the pitch diameter in
B. graphite B. 45/55 inches to the number of teeth:
C. grease C. 50/50 A. module
D. all of these D. 60/40 B. diametral pitch
9. Past ME Board Question 16. Past ME Board Question C. English module
What are the common cutting fluids used for The motion of an object diminished/decreased D. Circular pitch
cutting metals? speed 23. Past ME Board Question
A. water with soda borax A. deceleration It is recommended for high speed application that
B. light mineral oil B. retarded motion the minimum number of teeth in small sprocket
C. soluble oil C. negative impulse should be:
D. all of these D. all of these A. 26 to 30
10. Past ME Board Question 17. Past ME Board Question B. 12 to 16
Good stabilizer in stainless steel: It is recommended not to have a direct drive and C. 26 to 28
A. columbium drive sprockets if the ratio of their teeth. D. 18 to 24
B. titanium Exceed _____ use two or more step combination. 24. Past ME Board question
C. tantalum A. 10 times Continuous stretching under load even if the stress
D. all of these B. 8 times is less than the yield point:
11. Past ME Board Question C. 5 times A. Plasticity
The good deoxidizer in steel melting: D. 6 times B. elasticity
A. Manganese 18. Past ME Board Question C. creep
B. silicon It is used to charged rotary motion to reciprocating D. ductility
C. aluminum motion: 25. Past ME Board Question
D. All of these A. Helical Gear Which of the following is not structural class of
12. Past ME Board Question B. Rack Gear steel?
C. Worm gear A. high speed steel
29
 B. tool and die A. wears resistance alloy addition to tooth gear In the selection of wire rope, regular lay means wire
C. Low Carbon B. heat treatment of the gears and strands are arranged in the following manner:
D. high Carbon C. hardening of each tooth A. twisted in same direction
26. Past ME Board Question D. hunting tooth addition B. twisted in any direction
Opposite direction parallel forces: 33. Past ME Board Question C. twisted in opposite direction
A. concurrent The reciprocal of a diametral pitch or the ratio of D. twisted in along direction
B. coplanar pitch diameter to number of teeth 40. Past ME Board Question
C. couple A. lead In involute teeth, the pressure angle is often defined
D. non-coplanar B. module as the angle between the line of action and the line
27. Past ME Board Question C. involute of tangent to the pitch circle. It is also termed as:
The ratio of the moment of inertia in the cross- D. clearance A. helix angle
section of the beam to the section modulus 34. Past ME Board Question B. angle of recess
A. equal to the radius of gyration It is the ability of the material to resist deformation C. angle of obliquity
B. equal to the area of the cross-section under stress: D. arc of action
C. measure of a distance A. plasticity 41. Past ME Board Question
D. dependent on the modulus of elasticity B. stiffness Height of tooth above pitch circle or radial distance
28. Past ME Board Question C. toughness between pitch circle and top land of the tooth
Gear used to transmit power at high velocity ratios D. all of these A. top tooth
between non-intersecting shafts that are usually but 35. Past ME Board Question B. addendum
not necessarily at right angle. Flat leather belting not recommended for use in C. land
A. helical gear speed excess of ____ fpm. D. hunting tooth
B. bevel gear A. 3600 42. Past ME Board Question
C. worm gear B. 4800 The function of clutch in the machine tool is:
D. spiral gear C. 6000 A. lowering the drive
29. Past ME Board Question D. all of these B. alignment of drive shaft
Which of the following is the differential of the 36. Past ME Board Question C. to disconnect or connect at will the drive
shear equation? The angle included between the sides of the thread D. to insure that two shafts line up at high speed
A. bending moment of the beam measured in an axial plane in a screw thread. 43. Past ME Board Question
B. tensile strength of the beam A. angle of thread The amount by which the width of a tooth space
C. slope of the elasticity curve B. angle between thread or 40 exceeds the thickness of the engaging tooth on the
D. load of the beam C. helix angle thread pitch circles
30. Past ME Board Question D. half angle thread or 20 A. backlash
It is arbitrarily defined as the push and pull 37. Past ME Board Question B. clearance
A. force The property of a material that relates the lateral C. undercut
B. work strain to longitudinal strain D. Chordal thickness
C. inertia A. stress 44. Past ME Board Question
D. power B. strain Which does not belong to the group?
31. The changes in shape or geometry of the body due C. Poisson’s ratio A. SAE
to action of a force on it is called deformation or: D. endurance limit B. AISI
A. shear stress 38. Past ME Board Question C. SEA II
B. stresses Eccentrically loaded bearing is also called: D. ASTM
C. compressive stress A. full bearing 45. Past ME Board Question
D. strains B. offset bearing What is the specification number of molybdenum?
32. Past ME Board Question C. partial bearing A. SAE 2XXX
For evenly distributed and uniform wear on each D. fitted bearing B. SAE 3XXX
meshing gear tooth, the ideal design practice is to 39. Past ME Board Question C. SAE 4XXX
consider a _____. D. SAE 5XXX
30
46. Past ME Board Question C. saw and chisel A metal which has a high electrical conductivity but
What will be the effect in bushing gears without D. hammer should not be used for high temperature metal
backlash? 53. Past ME Board Question A. silicon
A. jamming All the functions lubricating oil except: B. zinc
B. overheating A. adhesion C. chrome alloy
C. overload B. corrosion prevention D. carbide
D. all of these C. act as coolant 60. Past ME Board Question
47. Past ME Board Question D. to lighten the load Finding the resultant of two or more forces is called:
Range of helix angle on helical gear 54. Past ME Board Question A. co-planar forces
A. less than 18 What type of bearing which totally encloses the B. non-coplanar forces
B. 15-25 shaft? C. couple
C. 20-35 A. offset bearing D. composition of forces
D. 35-40 B. central bearing 61. Past ME Board Question
48. Past ME Board Question C. babbit bearing Eccentrically loaded bearing is also called:
The distance of a helical gear or worm would thread D. full bearing A. full bearing
along its axis in one revolution if it were free to 55. Past ME Board Question B. offset bearing
move axially. Not adaptable to welding due to strength and poor C. partial bearing
A. lead ductility: D. fitted bearing
B. thread A. copper parts 62. Past ME Board Question
C. pitch B. aluminum parts The best instrument for measuring a thousandth of
D. land C. cast iron parts an inch
49. Past ME Board Question D. all of these A. micrometer
It refers to the gear between the fillets of adjacent 56. Past ME Board Question B. tachometer
teeth. In general, the design stress and factor of safety are C. caliper
A. top land related as follows: D. pyrometer
B. bottom land A. Design stress = ultimate stress times factor of 63. Past ME Board Question
C. pitch safety Galvanize iron is term referring to iron coated with
D. fillet B. Design stress = ultimate stress divided by A. aluminum
50. Past ME Board Question factor of safety B. tin
The distance between adjacent rivets is called: C. Factor of safety = design stress divided by C. zinc
A. pitch ultimate stress D. manganese
B. crest D. Ultimate stress = factor of safety divided by 64. Past ME Board Question
C. lead design stress The ability of a metal to resist being crushed:
D. none of these 57. Past ME Board Question A. shearing strength
51. Past ME Board Question The color of pipe for communication is: B. compressive strength
A plane perpendicular to the axial plane and to the A. white C. torsional strength
pitch plane, In gears with parallel axis, the B. blue D. tensile strength
transverse plane and the plane of rotation coincide. C. yellow 65. Past ME Board Question
A. transverse plane D. orange Is the permissible variation of the size of a
B. principal reference plane 58. Past ME Board Question dimension?
C. normal plane It improves red hardness of steel: A. tolerance
D. pitch plane A. chromium B. allowance
52. Past ME Board Question B. cobalt C. clearance
What tool will be used in making wood pattern in C. boron D. interference
the foundry shop? D. lead 66. Past ME Board Question
A. band saw 59. Past ME Board Question
B. drill machine
31
 The single force which produces the same effect B. ceramic 79. Past ME Board Question
upon a body as two or more forces acting together is C. carbide grade Cold drawing is also called _____.
called: D. cubic boron nitride A. hard drawn
A. resultant force 73. Past ME Board Question B. oxidized steel
B. co-planar force Moment curve to a simple beam with a C. cold lap steel
C. couple concentrated load at middle span takes the shape of D. strain hardening
D. non-coplanar force a; 80. Past ME Board Question
67. Past ME Board Question A. triangle Which of the following services is not considered as
Product of mass and linear velocity is known as: B. rectangular a work of a machinist?
A. impulse C. trapezoid A. reboring
B. linear momentum D. semi-eclipses B. grinding
C. angular momentum 74. Past ME Board Question C. overhauling
D. impact Type of chuck wherein the work piece with standard D. honing
68. Past ME Board Question diameter or size could be attached fast and quick 81. Past ME Board Question
What is the SAE specification number of especially small size work of mass production. In machine shop, had forging operation of
molybdenum-chromium-nickel? A. lathe drive plate lengthening a piece of stock while reducing the
A. 48XX B. clamp toe dog cross-sectional area of work is called:
B. 47XX C. collet attachment A. bloating
C. 46XX D. steady center rest B. upsetting
D. 45XX 75. Past ME Board Question C. spreading
69. Past ME Board Question Material may be stretched and still returns to its D. draining out
Plus or minus the tolerance is also called: former form/condition upon release of force are 82. Past ME Board Question
A. total tolerance called: The recommended age limit of fire tube boilers
B. unilateral tolerance A. plasticity A. 35 years
C. bilateral tolerance B. modulus of elasticity B. 30 years
D. none of these C. ductility C. 40 years
70. Past ME Board Question D. elastic limit D. 50 years
Some experiments are made at Cornell University 76. Past ME Board Question 83. Past ME Board Question
showed that experience mechanic could bread a The brittleness in steel at elevated temperature is: Silicon-manganese steel designation, SAE _____
_____bolt due to nut tightening. A. hard drawn A. 72XX
A. 3/8 inch B. cold lap B. 40XX
B. 5/8 inch C. red shortness C. 92XX
C. ½ inch D. residual stresses D. 9XX
D. 7/16 inch 77. Past ME Board Question 84. Past ME Board Question
71. Past ME Board Question Intermediate gear is also called _____ gear in the The factor of safety generally applied in wire rope
Common defects encountered in the foundry shop gear train arrangement. design starts at 3-4 for standing rope application, 5-
steel casting operation and also in welding practices. A. idler 12 for operating rope and _____ for hazard to life
A. cracks B. pinion and property application like foundry operation.
B. cold shot C. third gear A. higher value
C. parting line D. mounted gear B. 7-10
D. blow/pin holes 78. Past ME Board Question C. 8-10
72. Past ME Board Question The top and bottom land for gears is similar formed D. 10-18
This particular outing tool material withstands as to crest and _____ for screw thread. 85. Past ME Board Question
using temperature of 1800F and higher at cutting A. flank The maximum stress induced in a material when
speed beyond those possible with other cutting tool B. root subjected to intermittent or repeated load without
materials: C. flank tooth causing failure is called:
A. titanium carbide D. top land A. ultimate stress
32
 B. endurance limit 92. Past ME Board Question Tap not used for cutting thread _____.
C. ultimate torque For economical cost in the manufacturing large A. tapping tap
D. elastic limit worm gears the following materials are usually B. bottoming tap
86. Past ME Board Question applied. C. plugging tap
Which of the following tools does not belong to the A. bronze rim with cast steel spider D. taper tap
group? B. cast iron rim with bronze spider 99. Past ME Board Question
A. Hermaphrodite caliper C. cast steel rim with brass spider Relief angle of single-point in cutting mild steel cast
B. divider D. alloyed aluminum rim with cast iron spider iron and other average work as recommended
C. double veer block 93. Past ME Board Question should be in the ranges of _____ degrees for high
D. trammel Non-metallic material of high melting temperature speed tools.
87. Past ME Board Question being used as furnace lining: A. 8 to 12
_____ is the theoretical profile of the thread for a A. quartz brick B. 10 to 15
length of one pitch in the axial plane on which B. refractories C. 5 to 7
design forms of both the external thread are based. C. silica sand D. 12 to 16
A. Basic form of thread D. dolomite clay bricks 100. Past ME Board Question
B. Effective thread 94. Past ME Board Question Which of the following is an unsafe condition in
C. Basic profile of thread Chromium steel (to include heat and corrosion operating a lathe machine?
D. Design form of external thread resistant) designation: A. wearing denim pants/safety shoes
88. Past ME Board Question A. SAE 56XX B. wearing a canvass apron
One of the following materials is not mentioned for B. SAE 514XX C. operating with safety gloves
wire rope pulley/sheave applications. C. SAE 61XX D. wearing safety goggles/hearing aid
A. Plastic D. SAE 9XX Elements 08
B. Iron 95. Past ME Board Question 1. Past ME Board Question
C. Paper Mirror finish has surfaces fines of _____ rms. Which of the following does not affect the tensile
D. Copper alloy A. 1 strength of steel?
89. Past ME Board Question B. 2 to 8 A. sulphur
Internal stress exerted by the fibers to resist the C. 1 to 3 B. cobalt
action of outside force is called D. 2 to 5 C. phosphorus
A. shearing stress 96. Past ME Board Question D. boron
B. tensile stress All terms and abbreviations deal with wire rope 2. Past ME Board Question
C. ultimate stress arrangement except this _____ which deals with Which of the following is an example of rectilinear
D. compressive stress wire rope materials strength. translation?
90. Past ME Board Question A. preformed A. locomotive wheels
_____ Thread is used where the thread requires B. IWRC B. rack gear
great strength and usually cut square on one side C. Mps C. piston of an engine
and slanting on the other side D. lang lay D. jack
A. janno 97. Past ME Board Question 3. Past ME Board Question
B. buttress Alloy steel axle under repeated load/stress will A petroleum by-product used as an electrode in an
C. square eventually fail if the load/stress is above the electric arc furnace melting operation.
D. double endurance for steel under consideration. The A. anthracite coke
91. Past ME Board Question endurance limit of the steel is therefore: B. foundry coke
In greater quantity, this element is harmful to the A. equal to the allowable stress of the module of C. graphite electrodes
molten ferrous metal. elasticity D. bituminous coke
A. silicon B. equal to half of the ultimate stress 4. Past ME Board Question
B. aluminum C. equal to module of elasticity A machine shop equipment that can flatten
C. oxides D. equal to 80% of the elastic limit horizontally, vertically or angular plane
D. sulfur 98. Past ME Board Question A. shaper machine
33
 B. welding machine If a set of spur gears are made, installed and B. stiffness
C. drill machine lubricated properly, they may normally be subjected C. ductility
D. power saw to failure like: D. machinability
5. Past ME Board Question A. tooth spalling 18. Past ME Board Question
What type of leather belting should be used at an B. tooth peening The flux should be provided in soldering electrical
ambient temperature above 140 OF and C. pitting connection or commutator wires as it tends to corrode
possible acid liquid coming in contact with the belt? D. shearing the connections.
A. mineral tanned 12. Past ME Board Question A. sal ammoniac
B. combination of oak Normally cast iron contains 2% carbon or more and B. zinc chloride
C. oak tanned silicon in the range of_______%. C. stearin
D. none of these A. 1 to 3 D. acid fluxes
6. Past ME Board Question B. 2 to 4 19. Past ME Board Question
The material for engine radiator is usually made of: C. 2 to 3 Treatment process that produces a residual
A. yellow brass D. 1 to 6 compressive stress at the surface (which occupy more
B. silicon brass 13. Past ME Board Question volume) and residual tension inside that results in
C. admiralty brass A major component of cast steel is: considerable increase in fatigue strength members on
D. navy brass A. silicon torsion/bending:
7. Past ME Board Question B. iron A. partial quenching
What factors can modify the recommending cutting C. manganese B. heavy quenching
speed of a known workpiece? D. chromium C. quenching
A. rough cutting of a workpiece 14. Past ME Board Question D. shallow quenching
B. modify the shape of cutting tools The application of electrical currents to the corrosion
C. used correctly shaped cutting tool circuit to counter the corrosion 20. Past ME Board Question
D. depth of cut reaction is called: A good general purpose deoxidizer and promotes fine
8. Past ME Board Question A. cathodic protection grain in steel.
In a cutting tool the cutting end can generally called: B. sacrificial anodes method A. copper
A. end cutting edge C. chemical corrosion process B. magnesium
B. nose D. galvanic action C. molybdenum
C. back rake 15. Past ME Board Question D. silicon
D. side rake As a rule of thumb the design of foundation could be 21. Past ME Board Question
9. Past ME Board Question about 3.2 to _______ times the engine Surface connecting the crest and roots of the screw
What equation to be used in computing the stroke. thread.
acceleration of the center of a rolling ball with a diameter A. 4.20 A. lead angle
of 8 inches? B. 4.0 B. length of engagement
A. 0 C. 3.40 C. top land
B. w2 D. 3.60 D. flank
C. w2/r 16. Past ME Board Question 22. Past ME Board Question
D. v2/r Bevel gears subjected to corrosion and lightly loaded It is hardening treatment whrereby a cast metal is
10. Past ME Board Question is usually made of: being heated to a very high temperature
From experience specify the conventional limit of A. bronze then suddenly subjected to rapid cooling to improve
flywheel operations to be at 6000 ft/min B. brass hardenability or wear resistance is called:
for cast iron and _______for steel. C. duralumin A. annealing
A. 7000 D. all of these B. normalizing
B. 8000 17. Past ME Board Question C. temprering
C. 10,000 The characteristic of tool steel sustain shocks and D. quenching
D. 12,000 major impacts is due to its: 23. Past ME Board Question
11. Past ME Board Question A. toughness Moment of inertia is also called:
34
 A. modulus of elasticity The amount by which the deddendum is in a given D. at the tip portion
B. weep strength gear/pinion exceeds the addendum of its mating 36. Past ME Board Questions
C. radius of gyration gear/pinion. Also the radial distance between the top of A carbon content in the range of_______ in steel
D. none of these a tooth and the bottom of the mating tooth space. readily respond to heat treatment.
24. Past ME Board Question A. tip relief A. 0.36 to 0.40%C
Nickel-Chromium-Molybdenum steel designation B. top land B. 0.28 to 0.30%C
SAE C. clearance C. 0.18 to 0.25%C
A. SAE51XX D. space D. 0.12 to 0.15%C
B. SAE74XX 31. Past ME Board Question 37. Past ME Board Question
C. SAE94XX Deflection beam is: The soldering material commonly applied for
D. SAE64XX A. proportional to the modulus of elasticity and automobile radiator cores and roofing seams.
25. Past ME Board Question moment of inertia A. 15/85% tin and lead
It is the name applied to reciprocating motion as that B. proportional to the load imposed and inversely to B. 50/50% tin and lead
of a pendulum. the length squared C.45/55% tin and lead
A. intermittent motion C. inversely proportional to the modulus of D. 20/80 %tin and lead
B. reciprocating motion elasticity and moment of inertia 38. Past ME Board Question
C. oscillation D. inversely proportional to the weight imposed A research agency handling assistance to all foundry,
D. momentum times the length machine shop and metallurgical operation
26. Past ME Board Question 32. Past ME Board Question A. MIDRC
Avoidance in vibration in equipment of machinery The normal density of work space requirement to use B. BOI
foundations, a mass of weight equal to______ times the in the design of work room is______ cubic feet per C. DOST
forces are needed. person D. all of these
A. 10 to 20 A. 400 39. Past ME Board Question
B. 8 to 15 B. 388 An act of cutting out a piece of metal at a desired
C. 15 to 20 C. 353 shape and size
D. 8 to 10 D. 424 A. broaching
27. Past ME Board Question 33. Past ME Board Question B. blanking
Commonly used or produced screws/bolts/nuts and Safety features that must be placed and maintained at C. slitting
for engineering application is a ______series. Machine, Blacksmith, Welding and foundry shops D. dinking
A.UNC A. walkway guide 40. Past ME Board Question
B.ANSI B. safety notices The surface of the gear between the fillets of adjacent
C. withworth C. safety goggles teeth is called.
D. UNF D. safety notices in markers/boards. A. bottom land
28. Past ME Board Question 34. Past ME Board Question B. flank
It indicates how many times a volume of material is It is the symbol that the work surfaces should be C. top land
heavier than an equal volume of water. machined-finished and usually indicated in the drawing D. flank of tooth
A. specific gravity and placed on the line that represent the surface to be 41. Past ME Board Question
B. specific volume machined. In drilling soft materials used cutting angles as low as
C. specific weight A. f 40 degrees but extremely hard material up to
D. specific density B. 5 _______degrees is recommended.
29. Past ME Board Question C. 20 A. 80
Axially located rectangular groove in a hub and shaft D. F.A.O B. 65
A. keyset 35. Past ME Board Question C. 75
B. cotter pin set Web is part of a drill and is usually thicker________ D.70
C. flute A. beside the land 42. Past ME Board Question
D. setscrew point B. nearing the shank The ideal thickness of the cutter at the pitchline for
30. Past ME Board Question C. close to the future cutting helical gears should be _____
35
 of normal circular path. 49. Past ME Board Question B. limits
A. 3/8 The modulus of elasticity for metals in compression C. fits
B.3/4 is usually taken as that in. D. none of these
C.1/2 A. tension 56. Past ME Board Question
D. 5/16 B. bearing Considering that there is no fit, what is the
43. Past ME Board Question C. yield permissible liberal tolerance in machining work?
Progressive change of the position of a body is called. D. ultimate A. ±0.010
A. acceleration 50. Past ME Board Question B. ±0.090
B. momentum Which of the following is the ratio of moment and C. ±0.020
C. motion stress? D. ±0.050
D. force A. strain 57. Past ME Board Question
44. Past ME Board Question B. section modulus Which of the following is a tolerance where the size
In designing gears for power transmission an C. contraction of a part may be larger only, or
efficiency of_______ as recommended. D. passions ratio smaller only, than the given dimension.
A. 95% or more 51. Past ME Board Question A. unilateral
B. 89% of more What is the flexural stress when a symmetrically B. lateral
C. 85% of more cross-section beam when the vertical shear is maximum C. bilateral
D. 98% of more A. infinity D. none of these
45. Past ME Board Question B. zero 58. Past ME Board Question
The five principal parts of shaper are: table, tool C. maximum A tolerance where the size of part is permitted to be
slide, base ram and______. D. minimum either larger or smaller than the given
A. column 52. Past ME Board Question dimension
B. vise The riveted joints in ASME Code has as design A. unilateral
C. drive motor surface compressive stress______ B. lateral
D. apron Higher than the design tensile stress. C. bilateral
46. Past ME Board Question A. 70% D. none of these
It is a good design practice for steel line shafting to B. 60% 59. Past ME Board Question
consider a limit to the linear deflection of ______ C. 35% Which of the following is the basis of ASA fits?
inch/foot length maximum. D. 50% A. basic number system
A. 0.050 53. Past ME Board Question B. basic hole system
B. 0.010 What is the ratio of the minimum strength of joint to C. basic size system
C. 0.020 the strength of solid joint in the D. unit system
D. 0.060 pressure vessel? 60. Past ME Board Question
47. Past ME Board Question A. efficiency When the hole is smaller than the shaft it will take
The conical surface at the starting end of the thread B. relative strength force of pressure to put the cold parts together. In such
is called. C. performance factor case the allowance is negative. Which of the following
A. pitch cone D. joint efficiency terms is appropriate for such allowance?
B. chamfer 54. Past ME Board Question A. negative fits of metals
C. flute What is the usual factor of safety for a pressure B. interference of metals
D. crest vessel? C. positive fits of the shaft
48. Past ME Board Question A. 4 D. intangible fits
For ordinary steel, the modulus of elasticity usually B. 1.5 61. Past ME Board Question
falls between________ million pounds. C. 3 What is the direction of the predominant surface
A. 20 to 31 D. 5 pattern?
B. 35 to 45 55. Past ME Board Question A. smoothness
C. 20 to 35 It is the permissible variation of the size. B. waviness
D. 25 to30 A. tolerance C. lay
36
 D. roughness B. base circle It is the study of body’s motion independent of the
62. Past ME Board Question C. addendum circle forces on the body?
Is the irregularities of departures from the nominal D. pitch circle A. Kinetics
surface of greater spacing than roughness? 69. Past ME Board Question B. Dynamics
A. waviness The distance from a point on one gear to the C. Kinematics
B. roughness corresponding point measured along the base circle. D. Mechanics
C. lay A. normal pitch 76. Past ME Board Question
D. smoothness B. circular pitch What is the reciprocal of velocity ratio?
63. Past ME Board Question C. axial pitch A. train value
Is the surface finish of micrometer in rms. D. diametral pitch B. ratio factor
A. 1 70. Past ME Board Question C. modular value
B. 2 A line passing through the pitch point that is tangent D. none of these
C. 3 to both base circles of a gear is: 77. Past ME Board Question It is the type of bolt
D. 4 A. pressure line finished all over and has usually having coarse threads.
64. Past ME Board Question B. perpendicular line A. coupling bolt
Is the process of pre-stressing or over-stressing of a C. tangent line B. stud bolt
hollow cylindrical member beyond elastic range. D. center line C. Machine bolt
A. presstagge 71. Past ME Board Question D. automobile bolt
B. autofrettage Which of the following contact ratio for a good gear 78. Past ME Board Question
C. stress relieving design? It is type of bolt distinguished by a short portion of
D. countersinking A. 1.5:1 the shank and underneath the head being square of
65. Past ME Board Question B. 1:1.3 finned or ribbed.
Is the phenomenon occurring when two touching C. 1:3 A. coupling bolt
surfaces have a high contact pressure and when these D. 1.2:2 B. stud bolt
surfaces have minute relative motion? 72. Past ME Board Question C. Machine bolt
A. prestressing In pressure vessels, which of the following resists D. carriage bolt
B. fretting internal pressure through the tension? 79. Past ME Board Question
C. friction A. shell-type element It is type of bolt threaded on both ends and can be
D. carving B. cam type element used where a through bolt impossible.
66. Past ME Board Question C. plate type element A. coupling bolt
Which of the following gears has the simplest type of D. spherical type element B. carriage bolt
teeth? 73. Past ME Board Question C. stud bolt
A. Helical gears In pressure vessels, which of the following resists D. machine bolt
B. Spur gears internal pressure through bending? 80. Past ME Board Question
C. Bevel gears A. shell-type element It is cheap variety of bolt made in small sizes.
D. Worm gears B. cam type element A. stud bolt
67. Past ME Board Question C. plate-type element B. stove bolt
In gears an imaginary circle which the lever arm is D. spherical type element C. machine bolt
based in, 74. Past ME Board Question D. coupling bolt
A. base circle Which of the following flanges is suitable for low and 81. Past ME Board Question
B. pitch circle (hindi q mabasa) pressure? It is a locking device that is used to maintain pressure
C. addendum circle A. Ring flange between threads of the bolt and nut.
D. clearance circle B. Lap joint flange A. gasket
68. Past ME Board Question C. Tapered-hub flange B. lock washer
It is the circle tangent to the addendum of the D. Welding neck type C. lock nuts
meshing gears. 75. Past ME Board Question D. filler
A. clearance circle 82. Past ME Board Question
37
 What is the large wood screw used to fasten 89. Past ME Board Question B. Slenderness formulas
machinery and equipment What is the hard drawn (80% reduction) spring wire C. Moment formulas
A. lag screw made of carbon steel? D. Euler formula
B. loss screw A. oil tempered wire 96. Past ME Board Question
C. wood screw B. music wire If two principal stresses is zero, the state of stress:
D. cross screw C. tension wire 3A. Biaxial
83. Past ME Board Question D. chromium wire B. Mono-axial
What is the minimum length of contact in tapped 90. Past ME Board Question C. Uniaxial
hole for cast iron? Which of the following wires with good quality and is D. Triaxial
A. 1.7 D used for impact loading? 97. Past ME Board Question
B. 1.5 D A. Hard drawn wire What do you call the system that has finite values of
C. 1.2 D B. Cold drawn wire principal stresses?
D. 2.1 D C. Helical spring wire A. Triaxial
84. Past ME Board Question D. Chromium-Silicon wire B. Uniaxial
It is the ratio of the mean diameter of the coil over 91. Past ME Board Question C. Mono-axial
the coil diameters. When heat-treated wire is coiled cold, it should be D. Biaxial
A. Wahl factor stress relieved for bending stress and after cooling it or 98. Past ME Board Question
B. Spring index heated at some: A screw that requires positive torque to lower load or
C. Coil ratio A. 400 0F to loosen the screw if it has been turned tight against a
D. Lead scale B. 600 0F resistance
85. Past ME Board Question C. 700 0C A. power screw
What is the overall length of the spring when it is D. 500 0F B. lock screw
compressed until all adjacent coil touch? 92. Past ME Board Question C. Self screw
A. free length Which of the following is not a function of spring? D. self locking screw
B. solid length A. absorbs energy 99. Past ME Board Question
C. compressed length B. source of potential energy What is the rotating member used in transmitting
D. expansion length C. measure weight power?
86. Past ME Board Question D. measure thickness A. shaft
It is the length of coil spring under no load. 93. Past ME Board Question B. countershaft
A. compressed length Which of the following is the type of spring made in C. axle
B. free length the form of dished Washer? D. washer
C. solid length A. air spring 100. Past ME Board Question
D. none of these B. believe spring For machinery shaft the permissible deflection is
87. Past ME Board Question C. volute spring approximately:
In general, the steel springs are made of relatively D. motor spring A. 0.02 in/ft
high carbon steel usually: 94. Past ME Board Question B. 0.03 in/ft
A. 5% What is the type of failure due to unstability? C. 0.01 in/ft
B. less than 0.5% A. Buckling D. 0.05 in/ft
C. more than 0.5% B. Slenderness ratio ELEMENTS 09
D. 7.5% C. Stability 1. Past ME Board Question
88. Past ME Board Question D. Euler’s failure For shafts, the shear due to bending is a
It is low cost spring material suitable where service is maximum at the neutral plane where the
not severe and dimensional precision is not needed. normal stress is:
A. helical spring wire 95. Past ME Board Question A. Minimum
B. stainless steel What type of formula that is best applied to a very B. Constant
C. hard drawn wire spring slender column? C. Maximum also
D. copper A. Column formula D. Zero
38
2. Past ME Board Question D. 40 It is used a coupling or in addition to another
The minimum value of numerical combined 8. Past ME Board Question couplings where in case of overload there is
shock and fatigue factor to be applied in every What is the limiting torsional deflection for danfer of injury to machine or to material in
case to the computed bending moment of the machinery shafts, if the criteria of limiting process.
shaft is: torsional deflection vary from 0.08˚ per foot of A. Shear pin
A. 2.0 length? B. Flange coupling
B. 1.75 A. 1˚ C. Involute serrations
C. 1.5 B. 2.5˚ D. King pin
D. 1.3 C. 2˚ 15. Past ME Board Question
3. Past ME Board Question D. 3.5˚ What is the maximum shaft angle for a single
What is the other name given to short shafts 9. Past ME Board Question Hooke’s coupling?
on machines? Bevel gears of sizes 5 in. to 15 in. should not A. 10˚
A. Spindles be lift or depress more than _____, as Gleason B. 17˚
B. Head shafts statement. C. 15˚
C. Core shafts A. 0.004 D. 20˚
D. All of these B. 0.003 16. Past ME Board Question
4. Past ME Board Question C. 0.002 What are the two principal parts of a Journal
What is the other name given to a line shaft? D. 0.001 Bearing?
A. Countershaft 10. Past ME Board Question A. Bearing and Journal
B. Main shaft What type of key that allows the hub to move B. Shaft and Babbit
C. Long shaft along the shaft but prevents the rotation of the C. Clearance and Fitted
D. Head shaft shaft? D. Shaft and Cylinder
5. Past ME Board Question A. Woodruff Key 17. Past ME Board Question
The speed at which the center of mass will be B. Feather Key When line of action of the load bisects the arc
equal the deflecting forces on the shaft; the C. Gibbs Key of partial bearing, the bearing is said to be:
shaft with its attached bodies will then vibrate D. Square Key A. Eccentrically loaded
violently, since the centrifugal force changes its 11. Past ME Board Question B. Fully loaded
direction as the shaft turns in: What is the other name for Kennedy Key? C. Centrally loaded
A. Nominal speed A. Tangential Key D. Partially loaded
B. Critical speed B. Woodruff Key 18. Past ME Board Question
C. Relative speed C. Saddle Key What is the difference in radii of the bearing
D. Mean speed D. Roll pin and Journal?
6. Past ME Board Question 12. Past ME Board Question A. Even clearance
An old rule of thumb for transmission shafting What type of fits used for involute spline? B. Clearance ratio
is that the deflection should not exceed _____ A. Close fit C. Odd clearance
of length between supports. B. Press fit D. Radial clearance
A. 0.01 in. per foot C. Sliding fit 19. Past ME Board Question
B. 0.08 in. per foot D. All of these When radii of both the bearing and the
C. 0.02 in. per foot 13. Past ME Board Question journal are the same, then the bearing is said
D. 0.05 in. per foot Which of the following is used for permanent to be:
7. Past ME Board Question fits and similar to involute splines except that A. Fitted bearing
For transmission shafts the allowable the pressure angle is 14.5˚? B. Clearance bearing
deflection is 1 degree in a length of _____ A. Separation load C. Full bearing
diameters. B. Spline shaft D. Ambiguous bearing
A. 20 C. Stub serrations 20. Past ME Board Question
B. 25 D. Involute serrations What is the line that passes through the
C. 30 14. Past ME Board Question centers of the bearing and the journals?
39
 A. Line of action D. Deep-groove ball bearing A. 6000 to 7000 fpm
B. Line of centers 27. Past ME Board Question B. 5000 to 6000 fpm
C. Line of symmetry What is the usual density of the leather belt? C. 7000 to 8000 fpm
D. Tangent line A. 0.035 lb/in³ D. 4500 to 5600 fpm
21. Past ME Board Question B. 0.0135 lb/in³ 34. Past ME Board Question
Which of the following is considered C. 0.025 lb/in³ What is the usual recommended speed for
advantageous for bearing materials? D. 0.0465 lb/in³ fabric belts?
A. Conformability 28. Past ME Board Question A. 4000 to 5000 fpm
B. Compatibility Which of the following is the approximate B. 3000 to 4000 fpm
C. Embeddability density of a fat rubber belt? C. 2000 to 3000 fpm
D. All of these A. 0.055 lb/in³ D. 2000 and more fpm
22. Past ME Board Question B. 0.0135 lb/in³ 35. Past ME Board Question
What is the recommended coefficient of C. 0.045 lb/in³ Which of the following is the recommended
fluctuation of flywheels for punching, shearing, D. 0.0465 lb/in³ initial tension of the belt?
pressing machine? 29. Past ME Board Question A. 75 ib/in of width
A. 0.005-0.1 A toothed wheel whose tooth elements are B. 73 lb/in of width
B. 0.007-0.01 straight and parallel to the shaft axis or used to C. 71 lb/in of width
C. 0.03-0.05 transmit motion and power between parallel D. 80 lb/in of width
D. 0.01-0.03 shafts 36. Past ME Board Question
23. Past ME Board Question A. Helical gear Two shafts at right angles to each other may be
Which of the following considers 200 series of B. Spur gear connected by what arrangement?
bearing? C. Worm gear A. Half turn
A. Heavy D. Bevel gear B. Quarter turn
B. Medium 30. Past ME Board Question C. ¾ turn
C. Light The breaking strength of oak-tanned beltings D. One turn
D. All of these varies from 3 to more than: 37. Past ME Board Question
24. Past ME Board Question A. 5 ksi What is the minimum number of teeth on a
Which of the following considers the 300 B. 6 ksi smaller sprocket for low speed?
series of bearing? C. 7 ksi A. 12
A. Heavy D. 9 ksi B. 21
B. Medium 31. Past ME Board Question C. 17
C. Light Experience suggests that the most economical D. 14
D. All of these designs are obtained for a belt speed of: 38. Past ME Board Question
25. Past ME Board Question A. 6000 to 7500 fpm What is the minimum number of teeth on a
A type of roller bearing in which the balls are B. 3000 to 5000 fpm smaller sprocket for moderate speed?
assembled by the eccentric displacement of the C. 3500 to 4700 fpm A. 17
inner ring D. 5000 to 1000 fpm B. 21
A. Shallow groove ball bearing 32. Past ME Board Question C. 12
B. Filling-slot ball bearing The tension in the belt due to centrifugal force D. 14
C. Self-aligning ball bearing increasing rapidly above about: 39. Past ME Board Question
D. Deep-groove ball bearing A. 2500 fpm What is the usual minimum number of teeth
26. Past ME Board Question B. 3000 fpm on a smaller sprocket for high speed?
Which of the following is not a type of C. 3500 fpm A. 21
bearing? D. 4000 fpm B. 24
A. Shallow groove ball bearing 33. Past ME Board Question C. 12
B. Filling-slot ball bearing What is the recommended speed for leather D. 14
C. Self-aligning ball bearing belts? 40. Past ME Board Question
40
 Which of the following is the measure of Which of the following is the most dominant D. Surface rolling
torsional stress? cause (approximately 80 %) of machine 52. Past ME Board Question
A. Accuracy failures? Fatigue strength is increased by repeated loads
B. Stiffness A. Torsion just below the normal fatigue limit followed by
C. Rigidity B. Negligence small step by step increase of the loading.
D. Precision C. Fatigue failures A. Coaxing
41. Past ME Board Question D. Compression B. Waxing
When tested in compression, ductile materials 47. Past ME Board Question C. Mixing
usually exhibit _____ characteristics up to the For wrought steel in its commonly met D. Relieving
yield strength as they do when tested in commercial forms, it is often assumed that the 53. Past ME Board Question
tension. average endurance limit for an average (50 It is the diameter of the imaginary cylinder that
A. The same % survival) with the BrinellHardness is limited bounds the crest of an external thread and the
B. More than to: roots of an internal thread.
C. Less than A. 500 A. Mean diameter
D. Approximately the same B. 400 B. Root diameter
42. Past ME Board Question C. 240 C. Stress diameter
A tolerance where the size of a part is D. 450 D. Major diameter
permitted to be either larger or smaller than 48. Past ME Board Question 54. Past ME Board Question
the given dimension What is the range of the endurance ratio or It is the distance in inches a screw thread (a
A. Bilateral Czaud quotes values for steel? helix) advances axially in one turn.
B. Unilateral A. 0.23 to 0.65 A. Pitch
C. Lateral B. 0.34 to 0.87 B. Mean pitch
D. None of these C. 0.63 to 0.93 C. Lead
43. Past ME Board Question D. 0.34 to 0.45 D. Circular pitch
A fit generally used on those dimensions 49. Past ME Board Question 55. Past ME Board Question
involved in a fit such as pin in a hole. Which of the following indicates the degree of Which of the following bolts is recommended
A. Unilateral concentration? for general use?
B. Lateral A. Power factor A. UNC
C. Bilateral B. Service factor B. UNEF
D. None of these C. Stress factor C. UNF
44. Past ME Board Question D. Stress concentration factor D. NC
It is a relatively finely spaced irregularity of the 50. Past ME Board Question 56. Past ME Board Question
surfaces. The internal stresses that exists in any part of Which of the following is frequently used bolt
A. Smoothness the material that is subjected to temperature in automotive and aircraft industries?
B. Waviness and not acted upon by an external load A. UNC
C. Lay A. Residual stress B. UNEF
D. Roughness B. Form stress C. UNF
45. Past ME Board Question C. Superposed stress D. NC
Which of the following is the surface finish to D. Control stress 57. Past ME Board Question
heavy cuts or coarse feed? 51. Past ME Board Question Which of the following is particular bolt used
A. 200 rms It is the process that cold works a limited in aeronautical equipment?
B. 400 rms amount of material, thus giving a higher A. UNC
C. 80 rms strength, and it leaves a surface compressive B. UNEF
D. 500 or greater rms stress. C. UNF
46. Past ME Board Question A. Surface finishing D. NC
B. Tensioning 58. Past ME Board Question
C. Surfacing
41
 What type of bolt usually used for high- C. Motor spring B. Z – pitch
pressure pipe flanges, cylinder head studs etc. D. Garter spring C. Lead
A. UNC 65. Past ME Board Question D. Lead angle
B. UNEF It is a type of spring where thin flat strip 71. Past ME Board Question
C. UNF wound up on itself as a plane spiral, usually It is the angle between a tangent to the pitch
D. 8 UN anchored at the inside end. helix and plane normal to the axis of the screw.
59. Past ME Board Question A. Motor spring A. Helix angle
It is the stress or load induced by the B. Garter spring B. Lead angle
tightening operation. C. Volute spring C. Tangent angle
A. Initial stress D. Helical spring D. Vertical angle
B. Initial tension 66. Past ME Board Question 72. Past ME Board Question
C. Residual stress It is the ratio of the length of the column and It is suggested that the design factor on the
D. None of these the radius of gyration of the cross-sectional yield strength be about 1.5 for the smooth
60. Past ME Board Question area about a centroidal axis. load, about 2 to 2.25 for minor shock loading,
For non-metallic gaskets, it has been found A. Contact ratio and up to _____ for severe shock loads,
that they should have a certain minimum B. Slenderness ratio especially when the loading reverses during
amount of compression as _____ for a certain C. Centroidal ratio operation.
cork gasket. D. Column ratio A. 4.5
A. 62 % 67. Past ME Board Question B. 3.5
B. 86 % Under the theories of failure, for static loading C. 3.0
C. 68 % of ductile material, the design stress is: D. 4.0
D. 76 % A. Yield Stress / Factor of Safety 73. Past ME Board Question
61. Past ME Board Question B. Ultimate Stress / Factor of Safety A typical hub length fall between _____
It is a screw fastening with a nut on it C. Ultimate Stress / Proportional Limit A. 1.25D to 2.5D
A. Bolt D. Yield point / Proportional Limit B. 1.3D to 3.4D
B. U – bolt 68. Past ME Board Question C. 1.25D to 4.0D
C. Rivet Under the theories of failure, the value of D. D to 7.0D
D. Screw shear stress is how many times that of a tensile 74. Past ME Board Question
62. Past ME Board Question stress? A key with one several patented methods of
A fastening which has no nut and turns in to a A. Four times keying is driven or pressed into a hole that is
threaded hole B. Half small enough to dose the slit, assembled in
A. Bolt C. Double radial direction.
B. Fastener D. One-fourth A. Fit key
C. Rivet 69. Past ME Board Question B. Roll pin
D. Screw The theory of mechanics of material shows C. Saddle key
63. Past ME Board Question that the results from the octahedral shear stress D. Pin key
An old name for an unfinished through bolt theory and those from maximum distortion- 75. Past ME Board Question
comes with a square. energy theory are: A key that allows the hub to move along the
A. Coupling bolt A. The same shaft but prevents the rotation of the shaft
B. Stud bolt B. Less than A. Woodruff key
C. Machine bolt C. More than B. Gibbs key
D. Automobile bolt D. Not related C. Feather key
64. Past ME Board Question 70. Past ME Board Question D. Square key
It is a type of coil where the helical coil is It is the distance measure axially from a point 76. Past ME Board Question
wrapped into a circle forming an annular ring. on one thread to the corresponding point on For involute spline, the type of fits used:
A. Volute spring adjacent thread. A. Close fit
B. Hair spring A. Axial pitch B. Sliding fit
42
 C. Press fit D. 120˚F to 190˚F A. 1
D. All of these 83. Past ME Board Question B. 2
77. Past ME Board Question At higher temperatures, oil oxidizes more C. 3
A coupling that transmits power via the rapidly above: D. 4
frictional forces induced by pulling the flange A. 120˚F 90. Past ME Board Question
toward each other over slotted tapered sleeves. B. 200˚F Wire ropes are made from cold-drawn with
A. Flange coupling C. 140˚F _____ or more teeth.
B. Ribbed compression coupling D. 160˚F A. 21
C. Rigid coupling 84. Past ME Board Question B. 23
D. Flanged compression coupling For thrust bearing, the speed at moderate C. 25
78. Past ME Board Question operating condition is: D. 27
A coupling used for absorbing some shock and A. 50 <Vm> 200 fpm 91. Past ME Board Question
vibration that may appear on the shaft and of B. 50 <Vm> 250 fpm A wire rope that the wires and strands are
preventing the occurrence of reversed stresses C. 50 <Vm> 220 fpm twisted in the opposite direction
caused by the shaft deflecting at the coupling D. 50 <Vm> 250 fpm A. Long lay
preventing at the coupling 85. Past ME Board Question B. Perform
A. Rigid coupling If the ends are joined by wire lacing with C. Regular lay
B. Flange coupling machine, the usual efficiency of joint is: D. Lang lay
C. Flexible coupling A. 100 % 92. Past ME Board Question
D. None of these B. 75 % A wire rope that the wires and strands are
79. Past ME Board Question C. 85 % twisted on the same direction
It is the difference in the radii of the bearing D. 88 % A. Long lay
and the journal. 86. Past ME Board Question B. Perform
A. Even clearance On high speed centrifugal blowers, it has been C. Regular lay
B. Clearance ratio observed that the arc of contact is reduced D. Lang lay
C. Fit clearance from 180˚ at rest to _____ in motion. 93. Past ME Board Question
D. Radial clearance A. 100˚ Which of the following ropes is used for
80. Past ME Board Question B. 90˚ haulage, egging, guard rails?
A bearing in which the radii of the journal and C. 95˚ A. 6 X 35 IWRC
the nearing are the same D. 110˚ B. 6 X 15 IWRC
A. Fitted nearing 87. Past ME Board Question C. 7 X 8 IWRC
B. Full bearing The recommended net belt pull for rubber belt D. 7 X 7 IWRC
C. Partial bearing is: 94. Past ME Board Question
D. Clearance bearing A. 11.34 lb/ply per inch of width Which of the following has been considered as
81. Past ME Board Question B. 13.75 lb/ply per inch of width general purpose rope?
What is the approximate length-to-diameter C. 16.35 lb/ply per inch of width A. 6 x 19 IWRC
ratio of hydrodynamic bearings? D. 20.34 lb/ply per inch of width B. 7 x 25 IWRC
A. 1 88. Past ME Board Question C. 7 x 25 IWRC
B. 4 For minimum quietness, use sprockets with D. 6 x 9 IWRC
C. 3 _____ or more teeth. 95. Past ME Board Question
D. 2 A. 21 Which of the following ropes is used for lines,
82. Past ME Board Question B. 23 hawsers, overhead cranes, and hoists?
The operating temperature of oil films in the C. 25 A. 6 x 37 IWRC
bearing must approximately: D. 27 B. 6 x 35 IWRC
A. 140˚F to 150˚F 89. Past ME Board Question C. 6 x 25 IWRC
B. 140˚F to 160˚F If two intersecting shafts re to be belt D. 7 x 26 IWRC
C. 120˚F to 190˚F connected, _____ guide pulleys are to be used. 96. Past ME Board Question
43
 The regular materials wire ropes are made of: B. Power A. 0.005 – 0.1
A. Chromium C. Resistance brake B. 0.002 – 0.07
B. Wrought iron D. Braking torque C. 0.03 – 0.05
C. Cast steel 3. A kind of braking system such that if the band D. 0.01 – 0.03
D. High-carbon iron wraps partly around the brake drum and the 10. The part of the machine that absorbs the
97. Past ME Board Question braking action is obtained by pulling the band energy delivered by a sharp force or blow.
What is the minimum suggested design factor tight into the wheel. A. Spring
of wire ropes for miscellaneous hoisting A. Block brake B. Anvil
equipment is: B. Clutch C. Brakes
A. 2 C. Band brake D. Flywheel
B. 3 D. Centrifugal brake 11. It is the friction of wheel inclination from the
C. 5 4. Which of the following clutches that has a vertical position.
D. 4 disadvantage of heavier rotating masses. A. Camber
98. Past ME Board Question A. Multiple disc clutch B. Toe-in
To avoid excessive wear rate the recommended B. Cone clutch C. Caster
limiting pressure for 6 x 19 ropes is _____ for C. Disc clutch D. King pin inclination
cast steel. D. Twin clutching 12. Which of the following is a machine which
A. 700 psi 5. Which of the following welds have been takes large quantities of raw or finished
B. 900 psi considered as resistance weld which is usually materials and binds them with a rope or metal
C. 1000 pi round in the same dorm as the electrodes that straps or wires into a large package?
D. 1200 psi press the sheets together? A. Bacher
99. Past ME Board Question A. Edge joints B. Bending machine
To avoid wear rate the recommended limiting B. Spot welds C. Baler
pressure for 6 x 19 ropes is _____ for C. CIG welds D. Automatic screw machine
manganese cast steel. D. TIG welds 13. It is the grasping of an outside work piece in a
A. 2500 psi 6. A welding which consist of short lengths (2-3 chunk or jawed device in a lathe.
B. 2000 psi in. long) of welds with space between as 6 A. Clucking
C. 3000 psi inches on centers. B. Clamping
D. 2300 psi A. Intermittent weld C. Chucking
100. Past ME Board Question B. Spot weld D. Clam shelling
What friction devices that are used to connect C. MIG weld 14. Which of the following is a mechanical linkage
shafts? D. TIG weld or mechanism that can turn about a center or
A. Clutches 7. A welding operation that use hot flame and rotation?
B. Spring metal rod. A. Oscillation
C. Brakes A. Gas welding B. Crank
D. Holders B. Arc welding C. Coupler
Elements 10 C. Resistance welding D. Drag link
1. The total frictional energy that is stored in the D. Automatic welding 15. What type of compound screw which produces
brake parts principally in the drum or disk is 8. The arc is covered with a welding composition, a motion equal to the difference in motion
approximately: and bare electrode wire is fed automatically. between the two component screws?
A. 56% up A. Resistance welding A. Machine screw
B. 90% up B. Induction welding B. Tanden screw
C. 86% up C. Submerged welding C. Differential screw
D. 75% up D. Spot welding D. Variable screw
2. The brake capacity to absorb energy is known 9. What is the recommended coefficient of 16. Which of the following bolts provided with a
as: fluctuation of flywheels for punching, shearing, hole at one end instead of usual head?
A. Energy pressing machine is: A. Stud bolt
44
 B. Eye bolt B. Header 30. In impact force introduced to case the metal to
C. Machine bolt C. Head suction flow in shaped mold according to the shape to
D. Stove bolt D. None of these dies made.
17. What operation generally carried out to divide 24. The recommended means of supporting the A. Hardness
the parent coiled sheet into narrower coils? chuck during the mounting procedure to the B. Spinning
A. Slotting lathe spindle is to use: C. Swaging
B. Squeezing A. Crane D. Toughness
C. Squaring B. Jack 31. Find the polar section modulus of a steel
D. Slitting C. Overhead shafting with “D” as the diameter.
18. It is the process used to form shallow, round, D. Ratchet A. πD³/16
raised recessed troughs of uniform width in a 25. Too much ________ in flat belt operation B. πD³/32
straight curved or circular form. tend to cause excessive wear slippage and may C. πD³/32
A. Hemming burn the belt. D. πD³/16
B. Beading A. Play 32. Forces of equal in magnitude but opposite in
C. Embossing B. Slack direction are parallel are called:
D. Bludging C. Stiffness A. Acceleration
19. The process of removing excess metals from D. Tightness B. Coplanar
the edge of a strip to make it suitable for 26. It is a chromium steel tape in AISI-SAE C. Couple
drawing without wrinkling or to obtain final designation. D. Non-coplanar
complicated shape which was not directly A. 10XX 33. Composition of forces is at the ______ of two
possible by blanking. B. 25XX or more forces.
A. Lancing C. 50XX A. Combination
B. Slugging D. 40XX B. Opposition
C. Notching 27. Which of the following is not recommended C. Resultant
D. Trimming for use in a driving speed exceeding 2000 D. Summary
20. Which of the following is the processed of ft/min.? 34. Circular pitch is measured along the ________
removing coarse scratches or tool marks? A. Flat leather belt in the circular gear.
A. Polishing B. Herringbone gear A. Circle
B. Buffing C. Silent sprocket B. Line of action
C. Honing D. V-belt C. Pitch center
D. Lapping 28. It is a low cost bearing used worldwide for D. Pitch diameter
21. Which of the following ropes is galvanized and automobile or low horsepower motor 35. Stiffness is the material’s ability to ______
consist of 6 strands, 7 wires each, and a hemp application. It is made of thin coating of over deformation under stress.
core? flat metal strip. A. Non-coplanar
A. Reverse lay rope A. Babbitt B. Planar
B. Guy rope B. Cadmium brass C. Resist
C. Lang lay rope C. Lead D. Staffer
D. Regular rope D. Tin 36. It imparts the ductility, toughness, and
22. It is a large lathe used for turning and boring 29. The most common tool to measure diameter plasticity of steel.
cannons. in machine shop operation but normally and A. Annealing
A. Gun lathe always used with steel scale for measurement. B. Materializing
B. Engine lathe A. Caliper C. Quenching
C. Cannon lathe B. Micrometer D. Tempering
D. Turret lathe C. Protractor 37. Which of the following type of wood is usually
23. What devices on lathe used for carrying the D. Vernier used in making wood pattern in the foundry?
revolving spindle? A. Dried sap wood
A. Head stock B. Hard wood
45
 C. Kiln dried wood D. Pitch diameter C. Nickel
D. Scrap wood 45. Which of the following can be a con current? D. Titanium
38. The progressive change in position of ______is A. Collinear 53. It is a molybdenum steel-tape in AISI-SAE
called motion. B. Couple designation.
A. Component C. Parallel A. 44XX
B. Couple D. All of these B. 45XX
C. Link 46. Cutting lubricant used in drilling, reaming and C. 50XX
D. Mass tapping for brass and bronze. D. 51XX
39. Strain or _______ is a change in A. Dry 54. Cutting lubricants used in drilling, reaming
geometry/shape of the body due to the action B. Soda water tapping for hand spots in cast iron.
of a force on it. C. Soluble oil A. Dry
A. Bending stress D. Turpentine B. Kerosene
B. Deformation 47. In general accepted limit of diamond wheel C. Soda water
C. Shear stress speed should be in the range of _______ fpm. D. Turpentine
D. Stress A. 1000/2000 55. In a ________ design, the lead of a single
40. The effective face width of a helical gear B. 2500/3500 thread is equal to the pitch.
divided by the axial pitch. This is sometimes C. 3000/4000 A. Bevel gear
called face overlap. D. 5000/6000 B. Bolt
A. Angle overlap 48. Prepared tool bit will now consist of face, nose C. Helical gear
B. Axial overlap and: D. Hypoid gear
C. Contact overlap A. Cutting tool 56. A of chisels used in cutting of keyways, square
D. Helical overlap B. Shank corner or slots.
41. For mass production of casting it is generally C. Sharp tool A. Cape
cheaper to use ________ pattern for longer D. Tool edge B. Diamond head
life. 49. This is an alloy in bronze casting that assists C. Flat
A. Aluminum lubrication and in itself a lubricant. D. Round
B. Brass A. Lead 57. The maximum recommended ideal number of
C. Metal B. Manganese teeth to use for bigger sprocket is:
D. Wooden C. Phosphorous A. 120
42. It is a plane between mating teeth or the D. Tin B. 127
amount of which a tooth space exceed the 50. For longer sprocket chain life the speed range C. 132
thickness of an engaging tooth is called: of ______ fpm is recommended. D. 143
A. Backlash A. 1200-1400 58. A bolt for general application that posses a
B. Clearance B. 1500-1600 stronger thread is a type _____ screw.
C. Pitting C. 1800-2000 A. BUN
D. Space D. 2000-2100 B. UNC
43. The forces that can be combined or called 51. All stainless steel type is SAE designation C. UNEF
_____component forces. except: D. WOOD
A. Different A. 92XX 59. Maximum moment formula for beam simply
B. Helical B. 300XX supported at both ends and subjected to a load
C. Opposite C. 304XX uniformly distributed over its length.
D. Parallel D. 515XX A. wL/2
44. Plane of rotation is defined as plane 52. It is white metal with good oxidation and B. wL²/8
perpendicular to a: corrosion resistance. This has also good C. wL²/16
A. Gear axis electrical magnetic properties. D. wL/12
B. Gear ratio A. Aluminum 60. What is the special bearing used with high
C. Normal plane B. Copper deflection?
46
 A. Babbitt B. graphite 76. Forces that meet at a common point are called:
B. Ball C. lead A. co-linear
C. Roller D. silicon B. concurrent
D. Self aligning 69. It is a gear commonly used in parallel shaft C. coplanar
61. which of the following bearing is used for low transmission especially when a smooth D. couple
load and less expensive production continuous action is essential as in high speed 77. Pair of equal and opposite (not collinear)
A. Babbitt drives up to 12000 fpm. forces that tend cause a rotation of a body.
B. ball bearing A. Bevel gear A. centroids
C. roller bearing B. Helical gear B. couple
D. self aligning C. Herringbone gear C. equilibrium
62. the lateral strain in axial tension members can D. Spur gear D. vector
be calculated by; 70. The reciprocal of a diametral pitch or the ratio 78. Stress that resist being pulled apart.
A. deformation of the pitch diameter to the number of teeth A. compressive
B. Hooke’s law A. clearance B. shear
C. Poisson’s ratio B. involute C. tensile
D. William’s line C. lead D. torsional
63. it is abundantly used worldwide as coating on D. module 79. What is the other term applied to dynamic
top of the plate automobile. 71. What tool(s) will be used in making wood seals?
A. Babbitt pattern in the foundry shop? A. gasket
B. lead A. Band saw B. packing
C. manganese B. Drill machine C. seal
D. tin C. hammer D. shield
64. a liquid metal at room temperature. D. saw and chisel 80. Which type of hardening will work to some
A. aluminum 72. Type of bolt commonly used in the extent in all metals?
B. mercury construction that is threaded in both ends. A. annealing
C. zinc A. Acme threaded bolts B. austenitizing
D. zirconium B. Hex bolt C. martempering
65. it is a steel with SAE specification 13XX C. Square threaded D. work hardening
A. chromium D. Stud bolt 81. What do impact tests determine?
B. manganese 73. Ability of material to absorb strain energy and A. Creep test
C. molybdenum will return to its original state. B. hardness
D. nickel A. creep C. toughness
66. Property, which enables a material, be drawn B. fatigue strength D. yield strength
into a wire. C. hardness 82. Sound travels fastest in:
A. ductility D. resilience A. air at 0˚F and 1 atmospheric
B. elasticity 74. The ratio of lateral strain to longitudinal B. air at 70˚F and 1 atmospheric
C. plasticity strain. C. air at 70˚F and 0lbf /in
D. utility A. deformation D. steel at 70˚F
67. The stress that causes the material to shorten. B. modulus of elasticity 83. The yield strength of common yellow brass
A. bearing C. poisson’s ratio (70% Cu, 30%Zn)
B. compressive D. William’s line A. annealing
C. shear 75. Basic size is the same as design size if there is B. chill casting
D. tensile no: C. cold working
68. The most known lubricants bearing being A. allowance D. heat treatment
utilized in whatever category of load and speed B. clearance 84. How do you call the forces not lie on the same
are oil, air grease and dry lubricants like: C. limits plane?
A. bronze D. tolerance A. component
47
 B. composition of forces C. 400/345 C. Rubberized
C. non-coplanar D. 340/350 D. Wool
D. resolution 92. As a rule the center to center distance between 99. Which of the following that describes the same
85. the distance between the center of oscillation sprockets should not be less than _____ times material properties all cover/ direction and at
and the point of suspension is called: the diameter of the bigger sprocket and not any particular point in a structural member?
A. fix axis less than 30 times the pitch or more than A. heterogeneous
B. center of gravity about 50 times to pitch. B. homogenous
C. center of percussion A. 1.5 C. isentropic
D. radius of oscillation B. 2 D. isotropic
86. if the velocity is variable and regular/ C. 2.5 100. Arc produced by two tungsten electrodes into
constantly increasing the rate of change is D. 3 which jet hydrogen is directed.
called: 93. What is the carbon content range of SAE 4140 A. Atomic hydrogen welding
A. acceleration chrome-molly steel after treatment? B. Electro-beam welding
B. constant work A. 0.30/0.45 C. Hydrogen bomb
C. moment B. 0.38/0.43 D. Hydrogen lancing
D. motion C. 0.38/0.45 Elements 11
87. The kinematics chain in which one link is D. 0.30/0.50 1. A white metal, almost as bright as silver and is
considered fixed for the purpose of analysis but 94. Gear are manufactured usually in the following malleable and ductile and can be welded.
motion is possible in other link: processes: milling, generating, shaving, A. Nickel
A. belting grinding and B. Aluminu
B. frame A. blanking C. White Iron
C. mechanism B. dinking D. Lead
D. sprocket chain C. heat treatment 2. It is a silvery dull, soft metal and the second
88. All forces in the same plane are called D. molding lightest of all metals used in the industry.
A. coplanar 95. Flat belt that is too tight will induce strain on A. Nickel
B. couple the bearing and belt ______. B. Aluminum
C. parallel A. Life will be shortened C. White Iron
D. resultant B. Result to uneconomical operation D. Lead
89. The_____ is one of the rigid members / bodies C. Suffer/ shatter 3. The least among iron ores for it contains many
joined together to form a kinematics chain. D. Will be sheared/cut impurities, poor in iron contact and commonly
A. coplanar 96. The resulting cross-sectional area of the tensile used in England.
B. frame test specimen divided by the specimen original A. Hematite
C. link area is called: B. Magnetite
D. machine A. charpy test C. Limanite
90. The resultant of a pair of equal forces but B. % elongation D. Siderite
opposite in direction is called _____. C. Impact test 4. Which of the following is not considered to be
A. concurrent D. Izod test precious metal?
B. couple 97. SAE 51XXX belongs to the ______ steel A. Silver
C. non-concurrent family. B. Gold
D. resultant A. carbon C. Platinum
91. The helical and herringbone gear teeth cut B. chromium D. Steel
after heat treatment should have a hardness in C. manganese 5. It is an alloy of copper and zinc. It is
the range of 210/300BHN. The pinion gear D. nickel approximately 1/3 zinc and 2/3 copper.
teeth hardness on the other hand. 98. Which of the following gasket material which A. Brass
Ideally/normally should be at ______ BHN. should avoid hot liquid/steam application? B. Bronze
A. 250/320 A. Asbestos fiber C. Muntz metal
B. 350/380 B. Nylon fiber D. silver
48
6. It is a copper-tin alloy and is named either bell D. reversing load 20. Which of the following is abundant for ferrous
metal or brown metal. 13. Which of the following materials having metals?
A. Brass thermal expansion of about 10 times higher A. Sulfur
B. Bronze than those of materials and has more heat B. Phosphorous
C. Muntz metal generated during machining? C. Manganese
D. silver A. Aluminum D. Carbon
7. It is a furnace that converts pig iron into steel B. Asbestos 21. What machine is used to flatten surface on a
by oxidizing out the surplus carbon and using C. Plastic vertical, horizontal or even angular plane?
oxygen by throwing raw iron into the furnace. D. PVC A. Shaper machine
A. Open-heart furnace 14. To avoid scoring in the bearing surface and the B. power saw
B. Electric furnace shaft on to contamination/ absorption of the C. boring machine
C. Cupola time dirt in the bearing during operation/ D. drilling machine
D. Bessemer lubrication the bearing material to apply 22. All of these are classifications of iron ore;
8. The most commonly-used series in the bulk should have good ____________properties except what?
production of bolts, screws, nuts and other A. anti-scoring A. magnetite C. siderite
general applications in the coarse-thread series. B. corrosion resistance B. hematite D. sulfurite
A. UNC C. embeddability 23. It refers to the internal resistance of a material
B. UNF D. Conformability to being deformed and is measured in terms of
C. White iron 15. What do impact test measure? the applied load.
D. Lead A. Compactness A. stress C. ductility
9. What is the actual torque ratio of gear set B. Ductility B. strain D. malleability
divided by its gear ratio? C. Plasticity 24. The property of a material which resists forces
A. approach ratio D. Toughness acting to pull the material apart.
B. clearance 16. Which of the following types of gear transmit A .tensile strength C. bending strength
C. contact ratio power at a certain angle? B. compressive strength D. torsional strength
D. efficiency A. Bevel 25. The property of a material to resist loads that
10. Which of the following has low coefficient of B. Helix are applied
expansion, corrosion resistant, weak in C. Herringbone A. magnetite C. siderite
strength, and used for non-ferrous applications D. Spur B. hematite D. sulfurite
as alloying elements? 17. Which of the following gasket material is not 26. The property of a material to resist various
A. Aluminum use for high temperature? kinds of rapidly alternating stresses.
B. Aluminum oxide A. Asbestos A. fatigue strength B.bending strength
C. Copper oxide B. Plastic nylon C. compressive strength D. impact strength
D. Copper C. Rubberized 27. The ability of a material to resist loads that are
11. Which of the following material(s) is D. Wool applied suddenly and often at high velocity.
recommended for large sprocket of large speed 18. How do you call a plane perpendicular to the A. fatigue strength B. bending strength
ratio and having firm engagement? gear axis? C. compressive strength D. impact strength
A. nickel-chromium steel A. Normal plane 28. The ability of a material to stretch, ben, or
B. copper B. Pitch plane twist w/out breaking or cracking.
C. cast iron C. Plane of rotation A.Ductility B. Malleability
D. aluminum D. Radius of gyration C. Hardness D. Compressibility
12. In which of the following carrying capacity 19. Which of the following is the specification of 29. Which of the ff. is considered to be the father
where roller bearing is utilized better than ball molybdenum alloy? of all machine tools?
bearing? A. SAE 3XXX A. Lathe Machine B.Boring Machine
A. heavy load B.SAE 4XXX C. Drilling Machine D. Milling Machine
B. low load C. SAE 5XXX 30. It is ability of a material to resist the loads that
C. high temperature load D. SAE 6XXX are applied suddenly and often at high velocity.
49
 A. Fatigue strength B. Impact strength B. manganese D. precious metal
C.Hardness D.Shock strength C. molybdenum 44. All these are the basic kinds of cast iron ,
31. A steel of carbon range of 0.05to 0.03 percent D. nickel Except:
is considered as what type of steel? 38. Which of the ff. alloying elements of steel w/c A. gray iron
A. Low carbon steel makes it extremely hard and resistance to B. malleable iron
B. High carbon steel _w/out making it brittle? C. white iron
C. Medium carbon steel A. chromium D. red iron
D. Very high carbon steel B. manganese 45. Which of the ff. are the basic kinds of cast iron
32. A steel of carbon range of 0.30 to 0.45 percent C. molybdenum is harder and more difficult to machine
a considered as what type of steel? D. nickel because it contains carbon in carbide state?
A. Low carbon steel 39. It is the elements used mostly in steels A. gray iron
B. High carbon steel designed for metal cutting tools. The steels B. malleable iron
C. Medium carbon steel added by this element are tough, hard and very C. white iron
D. Alloyed Steel resistant to wear. D. wrought iron
33. A steel of carbon range of 0.45 to 0.75 percent A. chromium 46. How do you call metals that have no carbon
a considered as what type of steel? B. tungsten content?
A. Low carbon steel C. molybdenum A. ferrous metal
B. High carbon steel D. nickel B. malleable iron
C. Medium carbon steel 40. It is the element whose chief function is to C. non ferrous metal
D. Alloyed Steel strengthen the ferrite. It is used w/ tungsten to D. white iron
34. A steel of carbon range of 0.45 to 0.75 percent develop red hardness or the ability to remain 47. Which of the ff. is the type of cast iron that
a considered as what type of steel? hard when red hot. can stand more shock and blow than regular
A. Low carbon steel A .chromium cast iron?
B. High carbon steel B. cobalt A. nodular iron
C. Medium carbon steel C. molybdenum B. malleable iron
D. Very high carbon steel D. nickel C. wrought iron
35. Which of the ff. alloying elements of steel will 41. It also known as the strain drawing. It is the D. gray iron
tend to increase its strength w/out decreasing process whereby certain degree of hardness is 48. It is a metal of almost pure iron, ductile and
its toughness or ductility and w/ its large sacrificed in order to reduce brittleness and very tough. It can be hammered and shaped at
quantities the steel become tough but develop increase the toughness of steel tool. high temperature. It has a fibrous structure
high resistance to corrosion and shock? A. Tempering because the presence of slag.
A. chromium B. Normalizing A. nodular iron
B. manganese C. Annealing B. malleable iron
C. molybdenum D. Quenching C. wrought iron
D. nickel 42. It is the heat treatment of steel that produces D. gray iron
36. Which of the ff. alloying elements of steel will extremely hard surface. The process consists of 49. A type of ferrous metal w/c is formed by
produce the greatest hardening effect like exposing the steel to hot ammonia gas for remelting pig iron and scrap iron in a cupola
carbon and at the same time reduces the some hours. furnace. It is brittle and usually gray in color,
enlargement of its grain structure. A. Nitriding and commonly used in making casting.
A. chromium B. Cyaniding A. cast iron
B. manganese C. Carburizing B. malleable iron
C. molybdenum D. Ammonia bath C. wrought iron
D. nickel 43. How do you call the metals that contain large D. gray iron
37. Which of the ff. alloying elements of steel will amount of carbon content? 50. A classification of iron ore w/c contains 70%
produce fine grain structure and promotes A. ferrous metal iron when pure and 50% iron when mined.
greater toughness and ductility? B. non ferrous metal A. Hematite
A. chromium C. base metal B. Magnetite
50
 C. Limanite C. Cupola B. Tungsten
D. Siderite D. Bessemer C. hardness and resistance
51. .A classification of iron ore w/c contains 57. It is the process of reheating or drawing of D. Nickel
72.5% iron when pure and the remaining metal that has been hardened to a 64. It refers to that property in steel w/c resist
percentages are impurities. comparatively low temperature in order to indention or penetration .It is usually
A. Hematite relieve the hardening strain and increase the expressed in forms of the area of an indention
B. Magnetite toughness of the steel. made by a special ball under standard load, or
C. Limanite A. Tempering the depth of a special indenter.
D. Siderite B. Annealing A. Hardness
52. Which of the ff. iron ores also known as C. Cyaniding B. Ductility
“brown hematite” or ferric oxide a yellowish D. Normalizing C. Malleability
brown powder? 58. Case hardening is the process of hardening the D. wears resistance
A. Hematite outer surface of the metal and the inner parts 65. The distance from the point on a screw thread
B. Magnetite are soft .What percentage of carbon content to a corresponding point on a adjacent thread,
C. Limanite that this type of hardening is allowed. measured parallel to the axis.
D. Siderite A.15% and above A. Pitch
53. Which of the ff. represents manganese steel? B.10 to 20% only B. lead
A .13XX C. less than 5% only C. thread
B.40XX D. Any of the ff. D. crest
C.50XX 59. Steel numbered SAE-AISI, C1018 and 66. The top surface joining the two sides of a
D.10XX contains 0.10% to 0.30% carbon. thread.
54. It is another kind of furnace where cast iron is A. Low carbon steel A. pitch
remelted to make them into cast iron. The B. Medium carbon steel B. crest
furnace is charges w/ layers of coke and pig C. High carbon steel C. lead
iron plus scrap iron. D. Very high carbon steel D. space
A. Open-hearth furnace 60. A steel numbered SAE-AISI, C1035 when not 67. The amount of variation permitted in the size
B. electric furnace rolled and contains 0.30% to 0.60% carbon. of a part is the difference between the limits of
C. Cupola A. Low carbon steel maximum and the minimum dimensions of a
D. Bessemer B. Medium carbon steel given part. It may be expressed at plus, minus,
55. A furnace w/c consists of blowing a stream of C. High carbon steel or as both plus and minus.
air through a molten mass of iron pig. A D. Very high carbon steel A. tolerance
stream of air is turned on through the wind 61. A steel numbered SAE-AISI, C1035 when not B. limits
box and enters the converter at the bottom. rolled and contains 0.60% to 1.30% carbon C. variation
Manganese, carbon and other elements of and used when extra hardness is required. D. clearance
varying amounts are added to produce steel A. Low carbon steel 68. The instrument used to reshape a grinding
w/c is then poured and solidifies. B. Medium carbon steel wheel that is grooved or out of round is called
A. Open-hearth furnace C. High carbon steel a:
B. electric furnace D. Very high carbon steel A. wheel aligner
C. Cupola 62. Which of the ff. alloying elements used in B. wheel emery
D. Bessemer making high speed steel. C. wheel dresser
56. A furnace similar to open hearth. This A .Molybdenum D. wheel cutter
principal difference is the method of heating B. nickel 69. The instrument used to remove old packing
the charged .It is used in producing quality of C. manganese from cacking glands and stuffing boxes are
steels because melting and refining is closely D. Silicon called:
controlled. 63. Which of the ff. alloying elements used in A. packing tools
A. Open-hearth furnace springs to make more reliant. B. gland box cleaner
B. electric furnace A Silicon C. packing bits
51
 D. packing screw D. hole cleaner A. larger than the tap size
70. When working on bearings and checking for 78. What do you call the tool(s) used for cutting B. smaller than the tap size
high spots, it is customary to apply what? threads? C. equal to the size of the tap
A. white lead A. pipe cutter D. none of the above
B. dykem blue B. pipe threader 88. Which of the ff. does not have to be lubricated
C. red lead C. pipe stock’ and die` when drilling?
D. prussian blue D. pipe ratchet cutter A. steel
71. If you wanted to check the face of a pump slide 79. How do you call the tool used when working B. monel
valve or other flat-faced valve ,you could check large size of pipe? C. brass
for trueness on a: A .chain pipe wrench D. tool steel
A. flat board B. chain holder 89. How do you call the tool used when cutting a
B. piece of glass C. chains tongs hole in the side of a round piece of metal?
C. surface plate D.A or B A. vise
D. bearing plate 80. What tool is used when preparing to put B.”V” block
72. Which of the ff. is used to keep a metal clean fittings on copper tubing? C.jaw holder
while soldering? A. tube spreader B. tube retarder D. chuck
A. flax C. flaring tool D. tube countersink 90. When measuring a drill for size measure across
B. flux 81. Which of the ff. is not a standard thread form? the:
C. torch A. square B. double flute A. margin
D. insulated C. American national D.60 deg. sharp V B. shank
73. Before splicing electric wires, they should be: 82. How do you call the tool used to cut the C. flutes
A. tinned threads in a hole? D. porx
B. soldered A .top B.bit 91. IN threaded members, w/c of the ff. defines
C. cleaned and tinned C.tap D. reamer N.C?
D. insulate 83. Hand taps are provided in sets of three. Which A. neutral cut
74. To check the speed of a motor or other rotary of the ff. set of three? B. national cut
machine one would use a: A. taper, plug, and end C. national course
A. galvanometer B. taper, plug and bottom D. not center
B. tachometer C. short, taper and bottom 92. In threaded members, w/c of the ff. represents
C. micrometer D. short, medium and long N.F?
D. Geiger counter 84. Which of the ff. taps should be used to start a A. national file
75. Before drilling a hole in a piece of metal , it thread? B. neutral file
should be: A. plug B. bottom C. National fine
A. marked w/ chalk C. short D. taper D. not found
B. scribed 85. Which of the ff. size of the drill is used in 93. What tool used in precision work to smooth or
C. center punch preparing to tap a hole? enlarge_______
D. protracted A. equal to the size of the tap A. round out
76. A tap or die marked ¼-20 indicates: B. larger than the size of the tap B. reamer
A.1/4”2 radius-20 cm. long C. smaller than the size of the tap C. drift pin
B.1/4” diameter-20 threads per in D. none of the above D. protractor
C.1/4” radian -20 threads per in 86. Pipe taps are: 94. Which of the ff. chisels would be used for
D.1/42 turn-20 times A. the same size from end to end cutting a groove?
77. After a piece of pipe has been cut, the hole is B. tapered A. diamond –point chisel
clean out w/ a: C. not fluted B. round nose chisel
A. piper reamer D. not hardened C. cold chisel
B. pipe taper 87. When preparing to tap a hole pipe fitting the D. hot chisel
C. pipe cleaner size of the drill will be: 95. Which of the ff. is not a cut of file?
52
 A. smooth C. Outside calipers c. Outside diameter
B. half-round D. Center gage d. Wire gage
C. Second cut 5. What is the wrench size for a ¾” nut? 13. How do you call the tool used to cut
D. bastard A. 1-1/4” threads on pipe?
96. How do you call the tool used for cleaning B. ¾” a. Pipe tool
files? C. 1- 1/2” b. Pipe vise
A. files cleaner B. file oilstone D. 10/24” c. Pipe stock
C. file card D. scraper 6. Which of the following would cause hot d. Pipe cutter
97. Which of the ff. is the smallest size drill? bearings? 14. How do you call the pipe fitting which
A. #80 B. #1 A. Improper oil has two openings and provides a turn of
C. #60 D. #0 B. Improper alignment 90 degrees?
98. Which of the ff. is the largest size drill? C. Dirt in oil a. An elbow
A. A B.Z D. All of the above b. A coupling
C.X D.XX 7. What is the approximate melting point of c. A tee
99. The size of a drill is stamped on the: Babbitt? d. A union
A. point B. margin A. 1000 deg. F 15. In which of the following where plug cock
C. shank D. flute B. 750 deg. F offers?
100. A. operator must wear goggles C. 650 deg. F a. More resistance to flow than a
B. the surface to be babbitted must be free of D. 500 deg. F globe valve
moisture 8. Which of the following is correct in b. The same resistance to flow as a
C. the surface to be babbitted must be clean pouring Babbitt? globe valve
D. all of the above A. It can be done in several pouring c. Less resistance to flow than a
ELEMENTS 12 B. Must be poured all at one time globe valve
1. Which of the following safety precautions C. Can be done at intervals d. The same resistance to flow as
should be followed when renewing a D. Must be done in cool place an angle valve
flange gasket? 9. Which of the following groups of pipe 16. What is the common flux to be used
A. drain the line thoroughly sizes is correct? when soldering brass, copper or tin?
B. tie down isolation valves A. ¼, 1/2, ¾, 7/8, 1 a. Tallow
C. isolate the section to be worked on B. ¼, 3/8, ½, ¾, 1 b. Borax
D. all of these C. ¼, 3/8, ½, 5/8, ¾, 1 c. Rosin
2. In installing a new flange gasket, which of D. ¼, ½, 5/8, ¾, 1 d. Sal ammoniac
the following must be done first? 10. Which of the following where pipe 17. In one turn of the screw in a micrometer,
A. Flange faces are painted wrench (Stillson) was designed to be used? it moves the spindle by what amount?
B. Flange faces are absolutely clean a. Hexagonal objects a. 0.25”
C. Isolating valves are open b. Square objects b. 0.025”
D. Old gasket is in place c. Round objects c. 0.205”
3. Which of the following is correct about d. Flat objects d. 0.110”
standard wire gage? 11. In which of the following where pipe is 18. What is the process used to retard
A. #10 is larger than #5 measured? corrosion on iron pipe?
B. #1 is smaller than #2 a. Inside diameter a. Soldering
C. #25 is smaller than #20 b. Thickness of wall b. Tempering
D. #30 is larger than #25 c. Outside diameter c. Annealing
4. Which of the following tools would be d. Wire gage d. Galvanizing
most useful when taking leads on 12. In which of the following where tubing is 19. On XX heavy pipe the extra metal is
bearings? measured by: added to which of the following?
A. Dividers a. Inside diameter a. Outside
B. Micrometer b. Thickness of wall b. Inside
53
 c. Half on the inside, half on the c. 14 gage 32. What is/are the primary reason(s) why
outside d. 16 gage lead is used in solder?
d. Three quarters in the outside, 26. What is the use of shims? a. It has a high melting
one quarter on the inside a. Separate fresh and salt-water b. It is cheap
20. Which is very necessary when installing lines c. It has a low melting
packing in a packing box? b. Replace fuses d. B and C
a. Leave one old turn at the c. Adjust cylinder liners 33. What is the name of the taper shank used
bottom of the packing box d. Adjust bearing clearances on drills?
b. Remove one turn and install 27. How do you call the process used to a. Miller
one new turn of packing retard corrosion (rust) on iron pipe and b. Starrett
c. Leave sufficient and clearance fitting? c. Morse
on each turn to allow for a. Tinning d. Stanley
expansion b. Galvanizing 34. What is the effect if the melting point of
d. Place end cuts directly in line c. Soldering solder is very high?
with each other d. Sulphurizing a. Weaker the solder joint
21. A square foot of steel plate 1/8” thick 28. In pipe fittings the term “offset” refers to b. Stronger the solder joint
weighs 5 pounds. The weight of a steel what? c. Softer the solder joint
plate 10 feet long and 4 feet wide would a. A cut-off running at right angles d. Harder the solder joint
be how much? to the original piping 35. Which of the following will likely happen
a. 200 lbs b. Two pipes running parallel to if the angle on a drill is less than 59 deg.?
b. 20 lbs each other a. The drill will make a larger hole
c. 2000 lbs c. A bend in the pipe b. The drill will make a smaller
d. 20,000 lbs d. Two sizes of pipe in the same hole
22. Cast iron weighs 640 pounds per cubic run c. The hole will take longer to
foot. How much is the weight of cast iron 29. In machine shop, if the lips of the drill drill and more power is
block 14”x12”x18”? are of different lengths then which of the required to drive the drill
a. 1200 lbs following will likely happen? d. The drill will not center
b. 1120 lbs a. The drill will not cut properly
c. 1000 lbs b. The hole will be larger than 36. What is/are the reason(s) of soda being
d. 1088 lbs the drill added to water and used for cooling
23. A tank 28” in diameter and 14’ high is c. The hole will be smaller than instead of water?
filled with water. The total pressure on the drill a. It reduces the amount of heat
the bottom of the tank is: d. None of these will happen generated
a. 3741 lbs 30. Which of the following statement(s) is b. It improves the finish
b. 2573 lbs correct for the “brazed joint”/ c. It overcomes rusting
c. 4257 lbs a. Stronger than a soldered joint d. All of these
d. 3000 lbs b. Weaker than a soldered joint 37. What will likely happen if the drill’s speed
24. A double-bottom tank is 18’ wide, 24’ c. The same strength as a soldered is too high?
long and 4’ deep. It is filled with fresh joint a. Cut faster
water. The total capacity in tons is: d. Three times as strong as a b. Cut slower
a. 50 soldered joint c. Lose its temper
b. 55 31. Brazing requires which of the following/ d. Not cut
c. 48 a. Hot solder 38. The lip clearance of a drill should be
d. 45 b. More heat approximately how many degrees?
25. Sheet metal of #18 gage is heavier than: c. Soft solder a. 20 deg. – 25 deg.
a. 12 gage d. A and B b. 12 deg. – 15 deg.
b. 22 gage c. 5 deg. – 10 deg.
54
 d. 15 deg. – 20 deg. a. Drill being ground improperly d. 0.0001” between piston and
39. If the cutting edges of a drill are cut at b. Insufficient lubrication cylinder for each inch diameter
different angles: c. Drill being too hot of piston
a. The drill will not cut d. Any of the above 50. An approximate safe rule for cutting new
b. The hole will be larger than 46. In what operation where “center drilling” piston rings for steam pumps is to make
the drill is to be found? the ring:
c. The hole will be smaller than a. Drilling center in an odd- a. 1/32” larger in diameter per
the drill shaped piece of metal inch diameter of cylinder
d. None of the above b. Drilling and countersinking b. 1/16” larger in diameter than
40. What is the correct cutting angle on a with one tool that of the cylinder
drill for ordinary work? c. Centering with one tool and c. 1/16” larger in diameter per
a. 45 deg. drilling with another inch diameter of cylinder
b. 59 deg. d. Drilling a center in a piece of d. 0.005” larger in diameter per
c. 50 deg. stock in a drill press inch diameter of cylinder
d. 65 deg. 47. Which of the following defines “pitch” in 51. What is the approximate gap clearance for
41. A piece of stock 8” long is 4” diameter on threads? new piston rings for steam pumps?
one end and 1” diameter on the other a. A distance of the full length of a. 0.003” for each inch of
end. The taper per foot is: the thread diameter of cylinder
a. 4” b. The distance from a point on b. 0.001” for each inch of
b. 4 – ¼” one thread to a corresponding diameter of cylinder
c. 4 – ½” point on the next thread c. 0.010” for each inch of
d. 4 – 1/16” measured parallel to the axis diameter of cylinder
42. A piece of stock 8” long is 3” diameter at c. The distance from the top of d. 0.050” for each inch of
one end and 1 – ½” diameter at other one thread to the bottom of the diameter of cylinder
end. The taper per inch is: next thread 52. The familiar “3/8 – 16” in machine shop
a. ½” d. The distance from the bottom means what?
b. 3/16” of a head on a bolt to the first a. 6 pieces, 3/8” long
c. ¾” thread b. Gear with 16 teeth and a 3/8”
d. 5/16” 48. A tool bit for cutting an American arbor hole
43. A piece if stock 6” long is 2” diameter at National thread should be ground with c. 3/8” square , 16” lone
one end and is cut with a taper of ½” to what angle? d. 3/8” diameter, 16 threads per
the foot. The diameter of the smaller end a. 45˚ inch
will be: b. 60˚ 53. The work should be held ______, when
a. 1 – ½” c. 90˚ using a drill press.
b. 1 – ¼” d. 30˚ a. The hand
c. 1 – ¾” 49. An approximate safe rule for cutting new b. A vise or clamp
44. If a piston ring is to be made 1/64” larger pistons for steam pumps is to allow: c. A gloved hand
in diameter per inch diameter of the a. 0.002” between piston and d. Pliers
cylinder which it is to fit , the required cylinder for each inch diameter 54. What is/are the reason/s why tapered
diameter of the piston ring to fit an 8” of piston shanks are used on large drill presses?
cylinder will be: b. 0.001” between piston and a. The drill can be centered more
a. 8 – ¼” cylinder for each inch easily
b. 8 – 3/16” diameter of piston b. The drill can be easily forced
c. 8 – 1/8” c. 0.010” between piston and out of a sleeve with a drift
d. 8 – 5/32” cylinder for each inch diameter c. The shank will not turn when
45. What is the reason why drill “squeal’s” of piston cutting
when cutting?
55
 d. The shank can be reground 62. If you use dry grinding wheel for d. All of the above
when worn sharpening tool bits, dip the end of the 67. The “tang” of a file is the part that:
55. Which of the following is not a common bit in water frequently to prevent: a. Does the cutting
drill shank? a. Burning your fingers b. Has no teeth
a. Straight b. Annealing the cutting edge of c. Fits into the handle
b. Fluted the bit d. Is opposite the handle
c. Taper c. Hardening of the tip 68. In general, files are divided into two
d. Bit d. The tip from crystallizing classes called:
56. What is the usual cutting angle on a drill a. Single-cut and double-cut
for drilling mild steel? 63. A piece of tool steel held against an emery b. Rough and smooth
a. 39 deg. wheel will give off: c. Fine and coarse
b. 59 deg. a. White sparks with stars on the d. Heel and sizes
c. 49 deg. ends 69. The length of a file is measured from:
d. 69 deg. b. Yellow sparks a. End to end
57. When installing a new grinding wheel, c. No sparks b. Point to end
always use: d. Green sparks c. Point to heel
a. Blotting paper gaskets on each 64. Grinding wheels have a range of soft to d. Heel to end
side of the wheel hard abrasive materials depending on the 70. Which of the following where “pillar”
b. Copper gasket on each side of use. Most manufacturers letter their files are used?
the wheel wheels from A to Z. Which of the a. Filling slots
c. Only the steel washers provided following marks represents the hardest? b. Filing against a shoulder
with the machine a. E c. Filing keyways
d. None of the above b. Z d. Any of the above
58. What is the other term for the operation c. A 71. Which of the following will usually
of “truing” a grinding wheel? d. E1 happen to the blade of flexible hacksaw
a. Centering 65. What is the main difference between a applied by too much pressure?
b. Sizing planer and a shaper? a. Snap easily
c. Dressing a. The planer has an offset table b. Buckle or run out of line
d. Rounding and the shaper has a horizontal c. Cut too fast
59. What tool is used to check external pipe table d. Cut on a slant
threads? b. The shaper has a rotting table 72. Which of the following best defines
a. Plug gage and the planer has a horizontal soldering?
b. Pitch gage table a. It is holding two metals
c. Thread gage c. The table of a planer has a together by heating
d. Ring gage reciprocating motion past the b. It is joining two metals by a
60. What tool is used to check internal pipe tool head while the table of the third soft metal that is applied
threads? shaper is stationary and the in molten state
a. Plug gage tool head has a reciprocating c. It is holding two different kind
b. Pitch gage motion of metals together by heating
c. Thread gage d. One is larger than the other d. It is joining two metals together
d. Ring gage 66. One of the factors involved in the choice by heating
61. Which of the following is used to cut of grinding wheel is: 73. What is the use of flux in soldering?
gears? a. The kind of material to be a. Keep the solder from running
a. Gear cutter ground off the metal
b. Gear center b. The amount of stock to be b. Keep the metal from getting too
c. Gear hob removed hot
d. Gear threader c. The kind of finish required
56
 c. Keep the tip of the soldering a. Grease on it d. Tin and zinc
iron clean b. Oxidation on it 87. A piece of mild steel held against an
d. Remove and prevent oxidation c. Dirt on it emery wheel will give off ____.
of the metals d. Any of the above a. Bright shiny sparks
74. A surface should be prepared for 80. Prepared soldered paste flux is most b. No sparks
soldering by: popular if you did not have any, you c. Light straw-colored sparks
a. Filing the surface could use: d. Green sparks
b. Acid-cleaning the surface a. Hydrochloric acid 88. A gear wheel making 156 RPM has 56
c. Scraping the surface b. Nitric acid teeth. It drives another gear at 91 RPM.
d. Any of the above c. Sulfuric acid The number of teeth on the second gear
75. What is (are) the hand tool(s) used for d. Any of the above is:
cutting threads on round stocks? 81. Hard solder is made of which of the a. 65
a. Stock and die following? b. 50
b. Stock a. Copper and zinc c. 90
c. Die wrench b. Tin and copper d. 96
d. Stock cutter c. Tin and zinc 89. Tool steel can be hardened by which of
76. A tapered piece of stock is 2” long, 1-1/8” d. Tin and lead the following?
diameter at one end and ¾” diameter at 82. Which of the following is the flux usually a. Heating red hot and plunging
the other end. The taper per foot is: used for hard soldering? into water
a. 2” a. Rosin b. Heating red hot and cooling in
b. 2 – ¼” b. Barium a blast of air
c. 2 – ½” c. Borax c. Heating red hot and plunging
d. 2 – 1/16” d. Alum into linseed or cottonseed oil
77. Which of the following best defines 83. In which of the following where straight d. Any of the above, depending
sweating? muriatic acid is often used as a flux? on type and use
a. Soldering two different kinds of a. Galvanized iron 90. At what temperature where soft solder
metal together b. Sheet steel approximately melts?
b. Separating two pieces of metal c. Cast iron a. 250 deg.
that have been soldered d. Any of the above b. 450 deg.
together 84. For aluminum, special solders are being c. 350 deg.
c. Tinning two surfaces, used and will usually require which of the d. 550 deg.
applying, flux between them, following? 91. What material where a scriber is made
holding the two together and a. More heat from?
heating b. The same heat as copper wire a. Carbon steel
d. None of the above c. Less heat b. Tool steel
78. If muriatic acid is used as a flux, the d. The same heat as sheet metal c. Cold-rolled steel
soldered area must be cleaned thoroughly 85. Copper is annealed by heating to a cherry d. Hot-rolled steel
afterwards to prevent: red color and _____. 92. What should be done first before
a. Anyone touching it from a. Dousing in cold water applying layout blue on a piece of metal?
getting burned b. Dousing in oil a. Roughened
b. Remaining acid from eating c. Cooling slowly in air b. Clean
the metal d. Dousing in hot water c. Hot
c. The acid from evaporating and 86. Soft solder is made of which of the d. cold
the solder disintegrating following? 93. How many flutes does a drill bit have?
d. None of the above a. Copper and zinc a. 4 flutes
79. Solder will not unite with a metal surface b. Tin and copper b. 2 flutes
that has: c. Tin and lead c. 3 flutes
57
 d. No flutes B. tungsten alloy steel 9. A hacksaw blade with 34 teeth per inch should be
94. Where is the correction position of the C. high-speed steel used for cutting which of the following materials?
tool bit when facing off a piece of D. any of the above a. Brass
material in the lathe chuck? 2. A hacksaw blade with 24 TPI is best suitable for b. Heavy stock
a. Above center cutting which of the following materials? c. Cast iron
b. Below center A. tubing d. Thin wall tubing
c. At the center B. brass and copper 10. Where is the hacksaw blade should be placed in the?
d. Off center C. sheet metal over 18 gage a. The teeth pointing forward
95. Standard vise has ______ jaws? D. any of the above b. The teeth pointing backward
a. Soft 3. Which of the following is a "must"for all hard hacksaw c. One end looser than the other end
b. hard blades? d. The teeth facing in any direction
c. semi-hard A. It has a hard back and flexible teeth 11. Which of the following is the usual procedure when
d. semi-soft B. It has a flexible back and hard teeth cutting a long thin piece of metal?
96. In machining, which of the following C. It has the entire blade hardened a. Turn the blade upside down in the frame
could be the reason if tool bit burns? D. It will only fit a solid frame hacksaw b. Turn the blade at right angles to the frame
a. Speed is too slow 4. How many positions can a hacksaw blade be placed in c. Use a blade with fewer teeth per inch
b. Material is too hard a frame? d. Set the blade in the frame with the teeth
c. Speed is too fast A. Two positions facing toward you
d. Material cannot be cut B. One position 12. A hacksaw blade with 18 teeth per inch is best suited
97. Which of the following where the lathe C. Four position for cutting what materials?
compound is used? D. Three position a. Solid stock
a. Angle cutting 5. Files are divided into two general classes. How are b. Aluminum
b. Facing these classified? c. Cast iron
c. Grooving A. Rough and smooth d. Any of the above
d. Any of the above B. Single-cut and double-cut 13. What is the used of coolant in the power hacksaw
98. When the dial on the cross-feed is turned C. Large and small when cutting materials?
0.010”, how much is removed from the D. Glat shapes and round shapes a. Absorb the heat of friction
diameter of the stock being cut? 6. The term "set" of a saw best defines what? b. Prevent the blade from over heating
a. 0.010” A. To set properly in the frame c. Prevent the blade from losing its temper
b. 0.005” B. Alternate teeth are turned slightly to left and d. All of the above
c. 0.020” right to make cutting slot slightly wider than 14. What is the used for finishing a piece of work to size
d. 0.015” the thickness of the blade with a file?
99. Which of the following describes a C. The teeth have been case-hardened for better a. Double-cut-fine tooth file
flexible back hacksaw blade? cutting b. Mill file
a. Only the teeth hardened D. The teeth are set evenly apart c. Single-cut fine tooth file
b. A movable back 7. All hard hacksaw blades is best suited for work on d. Crossing file
c. Flexible ends which of the following? 15. The process of finishing off a piece of metal with a
d. Only the back hardened A. Brass real smooth finish.
100. The flexible type hacksaw blade is best suited for B. Cast iron a. Draw - filing
which of the following materials? C. Tool steel b. Mill-filing
A. Channel iron D. Any of the above c. Side-filing
B. Aluminum 8. Which of the following is the best instrument for d. Flat-filing
C. Tubing measuring thousandths of an inch? 16. How do you call a small piece of metal clogged
D. Any of the above a. Caliper between the teeth on the file?
Elements 13 b. Micrometer a. Clogs
1. Hacksaw blades are made of what materials? c. Tachometer b. Pins
A. tool steel d. Pyrometer c. Flats
58
 d. Bumps c. A pair of pliers 33. Te alignment of coupling faces can be checked by
17. Which of the following is described as the "safe edge" d. Gloves on what process?
of tge file? 25. What is normally used in drilling a hole in a piece of a. Inserting an inside micrometer
a. The end opposite the handle work held in a lathe chuck? b. Inserting a thermocouple
b. The edge with no teeth a. Compound rest c. Inserting a feeler gage between the coupling
c. The one with the handle b. Tailstock and drill chuck faces at various points around the circumference
d. None of the above c. Cross-feed d. rotating and measuring to nearest
18. The best procedure when filing a piece of metal in a d. Headstock permanent fitting
lathe is to take: 26. Copper is annealed by heating to a cherry red color 34. A piece of cast iron held against emery wheel will gas
a. Short even strokes and: off what?
b. Long fast strokes a. Dousing in cold water a. Dull yellow sparks
c. Long slow strokes b. Dousing in oil b. Red sparks
d. Short fast strokes c. Cooling slowly in air c. Bright shiny sparks
19. Which of the following information is necessary d. Dousing in hot water d. No sparks
when ordering a file? 27. What is the main purpose of "annealing" a metal? 35. When cutting materials in a lathe, the softer the
a. Size (length) a. To make the metal harder materials being cut, the tool bit should have:
b. Type of teeth b. To make the metal softer a. More top rake
c. Shape c. To make the metal harder medium-hard b. Double top rake
d. All of the above d. To make the metal harder shiny c. Less top rake
20. Which of the following is the best file to be used 28. Te purpose of "tempering” is to make a metal what? d. Any of the above
when finishing sharp corners or slots and grooves? a. Harder 36. After grinding a tool bit, the cutting should be:
a. Mill file b. Less brittle a. Case-hardened
b. Knife file c. Softer b. Stoned with an oilstone
c. Square d. More brittle c. Rubbed with emery cloth
d. Jeweler's file 29. What is the minimum diameter of a piece of round d. Rubbed with crocus cloth
21. How is "eleven-sixteenths" of an inch expressed in stock necessary to make a square key 3/4 on a side? 37. When turning a piece of round metal in a lathe, the
decimal? a. 1.5" front clearance should be smaller for:
a. 0.6785 b. 1.0" a. Large-diameter cutting
b. 0.6875 c. 1.06" b. Cutting angles
c. 0.7685 d. 0.75" c. Small-diameter cutting
d. 0.6578 30. A scriber is made from what materials? d. None of the above
22. What is the approximate distance of the marking on a. Carbon steel 38. When cutting the materials in a lathe, the harder the
a micrometer barrel? b. Tool steel materials being cut, the tool bit should be:
a. 0.025" apart c. Cold-rolled steel a. More side rake
b. 0.0025" apart d. Hot-rolled steel b. More top rake
c. 0.250" apart 31. Before applying layout blue on a piece of metal, it c. Less side rake
d. 2.50" apart must be: d. No side rake
23. Which of the following is the effect if the lathe is put a. Roughened 39. What is the primary purpose of knurling?
into back gear? b. Cleaned a. Smooth material
a. Go backward of the same speed c. Heated b. Roughen material
b. Faster d. Cold c. Polish material
c. Slower 32. A drill bit has how many flutes? d. Sharpen material
d. At a lower speed backward a. 4 flutes 40. What do you call the process of removing the sharp
24. The work should be held with _______ when using a b. 2 flutes edges from a piece of stock?
drill press? c. 3 flutes a. Knurling
a. The hand d. No flutes b. Planning
b. A vise or clamp c. Chamfering
59
 d. Turning a. Tin-plating solution to the part. The workpiece is the cathode in the
41. At what speed that carbon steel drill should be b. Metal spraying electrical circuit.
operated? c. Organic finishes a. Electroplating
a. Speed greater than that when using a high d. Lapping b. Calorizing
speed drill 49. The spraying of molten metal onto product. Methods c. Burnishing
b. Speed less than that when using a high include metalizing,metal powder spraying and plasma d. Buffing
speed drill frame spraying. 56. The diffusing of aluminum into a steel
c. The same speed as that when using a high a. Tin-plating surface,producing an aluminum oxide that protects the
speed drill b. Metal spraying steel from high-temperature corrosion
d. None of the above c. Organic finishes a. Electroplating
42. A specific method of zinc galvanizing in which parts d. Lapping b. Calorizing
are tumbled in zinc dust at high temperatures. 50. Application of a thin phosphate on steel to improve c. Burnishing
a. Sheradizing corrosion resistance. d. Buffing
b. Super finishing a. Parkerizing 57. How do you call the process of fine grinding it
c. Polishing b. Honing peering operation designed to leave a "characteristic
d. Pickling c. Hand surfacing pattern on the surface of the workplace"?
43. Abrasion of parts against wheels or belts coated with d. Galvanizing a. Electroplating
polishing compounds. 51. This process is known as bonderizing when used as a b. Calorizing
a. Sheradizing partner for paints. c. Burnishing
b. Super finishing a. Parkerizing d. Buffing
c. Polishing b. Honing 58. A fine finishing operation, similar to polishing, using
d. Pickling c. Hand surfacing a very fine polishing compound.
44. A super fibe grinding operation used to expose no d. Galvanizing a. Electroplating
fragmented, crystalline base metal. 52. The grinding operation using stones moving in a b. Calorizing
a. Sheradizing reciprocating pattern. Leaves a characteristic cross-hatch c. Burnishing
b. Super finishing pattern d. Buffing
c. Polishing a. Parkerizing 59. Rotating parts in a barrel filled with an abrasive or
d. Pickling b. Honing non abrasive medium. Widely used to remove burrs,
45. The process in which the metalis dipped in dilute c. Hand surfacing flash, scale, and oxides
acid solutions to remove dirt grease and oxides. d. Galvanizing a. Abrasive cleaning
a. Sheradizing 53. The creation (by sprayng,plating, fusion welding, or b. Calorizing
b. Super finishing heat treatment) of a hard metal surface in a softer c. Barrel finishing
c. Polishing product. d. Anodizing
d. Pickling a. Parkerizing 60. An electroplating - acid bath oxidation process for
46. A hot-dip or electroplate application of tin to steel. b. Honing aluminum and magnesium. The workplace is the anode
a. Tin-plating c. Hand surfacing in the electrical circuit.
b. Metal spraying d. Galvanizing a. Abrasive cleaning
c. Organic finishes 54. A zinc coating applied to low carbon steel to improve b. Tumbling
d. Lapping corrosion resistance. The coating can be applied in a file c. Barrel finishing
47. A fine grinding operation used to obtain exact fit and dip bath, by electroplating or by dry tumbling d. Anodizing
dimensional accuracy. (sheradizing) 61. Shooting sand (i.e sand blasting), steel grit, or steel
a. Tin-plating a. Parkerizing shot against work pieces to remove casting sand, scale
b. Metal spraying b. Honing and oxidation.
c. Organic finishes c. Hand surfacing a. Abrasive cleaning
d. Lapping d. Galvanizing b. Tumbling
48. The covering of surfaces with an organic film of paint 55. The electro-deposition of a coating onto the c. Barrel finishing
enamel or lacquer. workplace. Electrical current is used to drive ions in d. Anodizing
60
62. What is the other term for barrel finishing? a. Cutting speed 78. Ceramic tools operate at what temperatures?
a. Abrasive cleaning b. Chip velocity a. Below 2000F
b. Tumbling c. Shear velocity b. Below 2200F
c. Barrel finishing d. Rake velocity c. Above 2000F
d. Anodizing 71. How do you call the velocity of the chip relative to d. Above 2200F
63. Brittle materials produce discrete fragments known as the work piece? 79. Which of the following is manufactured from
a. A chip breaker grooves a. Cutting speed aluminum oxide have the same expected life as carbide
b. Discontinuous chips b. Chip velocity tools but can operate at speeds from two to three times
c. Non-segmented chips higher? They operate below 1100 C.
d. Type-two chips
c. Shear velocity a. Sintered carbides
64. Ductile materials form long helix-coiled string chips d. Rake velocity b. Ceramic tools
known as: 72. Which of the following is the primary parameter c. Diamonds
a. Continuous chips affecting the cutting energy requirement? d. Cast non-ferrous
b. Discontinuous chips a. Compressive stress 80. Which of the following are used in specific case,
c. Segmented chips b. Shear stress usually finishing operations?
d. Type-one chips c. Torsional stress a. Sintered carbides
65. Often ground in the cutting tool face to cause long d. Bending stress b. Ceramic tools
chips to break into shorter, more manageable pieces. 73. The energy expended per unit volume removed is c. Diamonds
a. A chip breaker grooves known as: d. Cast non-ferrous
b. Discontinuous chips a. Specific cutting energy 81. Used as finishing operation since very fine and
c. Non-segmented chips b. Metal removal rate dimensionally accurate surface can be produced.
d. Type-two chips c. Cutting horsepower a. Grinding
66. What is the typical chip ratio? d. Absolute cutting energy b. Snagging
a. 0.50 74. A plain carbon steel with approximately 0.9 to 1.3% c. Honing
b. 0.75 carbon, which has been hardened and tempered? d. Lapping
c. 0.25 a. Carbon tool steel 82. Describes very rough grinding, such as t5hat
d. 1.00 b. High speed steel performed in foundries to remove gates, fins, and risers
67. The angle at which the tool meets the workpiece is c. Low speed steel from cesting.
characterized by: d. Medium speed steel a. Grinding
a. True rake angle 75. Contains tungsten or chromium and retains its b. Snagging
b. Clearance angle hardness up to approximately 600C. c. Honing
c. Relief angle a. Carbon tool steel d. Lapping
d. Wedge angle b. High speed steel 83. Grinding in very much little material, 0.001 to 0.005
68. Which of the following is the sum of the rake, c. Low speed steel is removed.
clearance of wedge angles? d. Medium speed steel a. Grinding
a. 90deg. 76. Cast non-ferrous tools are brittle but can be used up b. Snagging
b. 180deg. to approximately: c. Honing
c. 45deg. a. 1000 C d. Lapping
d. 75deg. b. 925 C 84. Which of the following is not a measuring device?
69. What is the relative velocity difference between the c. 1500 C a. Orsatanalyser
tool and the workpiece? d. 750 C b. Thermometer
a. Cutting speed 77. Which of the following is produced through powder c. Micrometer caliper
b. Chip velocity metallurgy from non-ferrous metals? d. Divider
c. Shear velocity a. Sintered carbides 85. A plain carbon steel with approximately 0.9 to 1.3%
d. Rake velocity b. Ceramic tools carbon which has been hardened and tempered.
70. How do you call the velocity of the chip relative to c. Diamonds a. Carbon tool steel
the act face? d. Cast non-ferrous b. Cast non-ferrous
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 c. High speed steel 93. Percent of the heat developed in cutting is due to a. Centerless grinding
d. Diamond friction between the tool and the work piece is? b. Laser machining
86. Carbon tool steel can be given a good edge, but is a. Approximately 50% c. Chemical milling
restricted to use below: b. Approximately 10% d. Ultrafinishing
a. 400 to 600 F c. Approximately 25% ELEMENTS 14
b. 300 to 400 F d. Approximately 75% 1. Which of the following uses high-energy electrical
c. 700 to 800 F 94. Which of the following is used to reduced friction, discharges to shape electrically conducting work
d. 800 to 1000 F removed heat, remove chips and protect against piece?
87. Which of the following contains tungsten or corrosion. A. electrochemical machining
chromium and retains its hardness up to approximately a. Water vapor B. electrochemical grinding
1100 F, a property known as red harness? b. Carbon C. electrical discharge machining
a. Ceramic tools c. Air D. ultrasonic grinding
b. Diamonds d. Cutting fluid 2. For common brass tools, wear ratios for the tool
c. High speed Steel 95. Which of the following is a good heat remove but it and work piece vary between:
d. Carbon tool steel promote rust? A. 4:1
88. Cast non-ferrous tools are brittle but can be used up a. Air B. 20:1
to approximately: b. Kerosene C. 20:1
a. 1700 F c. Carbon Dioxide D. 8:1
b. 2200 F d. Water 3. For expensive tool materials, wear ratios for the
c. 2000 F 96. Addition of ___________ to water produces an tool and work piece vary between:
d. 600 F efficient inexpensive cutting fluid that does not promote A. 4:1
89. They are produced through powder metallurgy from rusting. B. 20:1
non-ferrous materials. a. Sal soda C. 10:1
a. Diamonds b. Kerosene lubricants D. 8:1
b. Cast non-ferrous c. Straight cutting oil 4. It removes heat by electrolysis in a high current
c. Ceramic tools d. Air deplating operation
d. Sintered Carbides 97. It reduces friction and do not cause rust but are less A. electrochemical machining
90. Sintered carbide operates as cutting speeds how many efficient of heat removal than water: B. electronic erosion
times as fast as HSS tools: a. Sal soda C. electrospark machining
a. 2 to 5 b. Kerosene lubricants D. electrical discharge machining
b. Thrice c. Straight cutting oil 5. What is the other name of electrolytic grinding?
c. 5 to 7 d. Air A. laser grinding
d. Twice 98. Taylor’s equation relates cutting speed v and tool life B. electrochemical grinding
91. Which of the following is manufactured from T for particular combination of tool and workplace, VTn C. ultrasonic grinding
aluminum oxide have the same expected life as carbide = constant. This equation is also known as: D. chemical milling
tools but can operate at speeds from two to three times a. Flank wear 6. It is typically used in the manufacture of printed
higher? b. Nose failure circuit boards, is the selective removal of material
a. Ceramic tools c. Crater wear not protected by a mask.
b. High speed steels d. Tool life A. chemical milling
c. Diamonds 99. After any cutting or standard grinding operation, the B. laser machining
d. Carbon tool steel surface of the workplace will consist of: C. ultrasonic machining
92. Able in the presence of high temperature iron used a. Smear metal D. electronic erosion
in specific cases, usually in finishing operations. b. Ultrafinishing 7. It can be used to shape hard brittle materials such
a. Ceramic tools c. Superfinishing as glass, ceramics, crystals and gem stones, as well as
b. Diamonds d. Centerless grinding tool steels and other metals.
c. High speed steel 100. A method that does not require clamping, A. chemical milling
d. Aluminum chucking, or holding round work pieces. B. laser machining
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C. ultrasonic machining A. embossing C. powered hammers
D. electronic erosion B. drawing D. impactor forging
8. It is used to cut or burn very small holes in the C. swaging 23. The forging blows are repeated at the rate of
work piece with high dimensional accuracy. d. punching more than 300 times a minute for
A. electrochemical machining 16. It is used in the production of coins, is a severe A. gravity drop hammers or board hammers
B. laser machining operation requiring high tonnage, due to the fact B. press forging
C. chemical milling that the metal flow is completely confined within C. powered hammers
D. electronic erosion the die cavity D. impactor forging
9. A general term used to denote the blanking, A. coining 24. The work piece is held in position while the dies
bending and forming and shearing of thin-gage B. embossing are hammered horizontally into it from both sides
metals. C. swaging A. gravity drop hammers or board hammers
A. presswork D. blanking B. press forging
B. transfer die 17. Forms shallow raised letters or other designs in C. powered hammers
C. strip die relief on the surface of sheet metal blanks D. impactor forging
D. brake A. coining 25. Involves holding and applying pressure to round
10. Used with dies and punches to form the work B. embossing heated blanks
pieces C. swaging A. upset forming
A. station D. blanking B. flash
B. transfer die 18. Reduce the work piece area by cold flowing the C. pickling
C. strip die metal into die cavity by a high compressive force or D. parting line
D. presses impact 26. With_________, the part is shaped by a slow
11. With ___________ the work piece advances A. coining squeezing reaction, rather than impacts
through a sequence of operations: B. embossing A. drop forging
A. presswork C. swaging B. impactor forging
B. brakes D. blanking C. press forging
C. tonnage 19. The repeated hammering of a work piece to D. upset forging
D. progressive dies obtain the desired shape 27. Following forging, the part will have a thin
12. Cut pieces from flat plates, strips and coil stock A. spring back projection of excess metal as ________at the
A. shearing B. blanking parting line
B. bends allowance C. punching A. pickling
C. forming dies D. forging B. flash
D. spring back 20. Relies on closed impression dies to produce the C. trimmer dies
13. It produces usable pieces, leaving the source desired shape D. upset
piece behind as scrap A. hammer forging 28. The flash is trimmed off by ___________in a
A. punching B. open die forging subsequent operation
B. drawing C. smith forging A. pickling
C. blanking D. drop forging B. upset
D. coining 21. What is the other name give to gravity drop C. trimmer dies
14. The operation of removing scrap blanks from hammers? D. forging
the work piece, leaving the source piece as the final A. board hammers 29. With________, a mold is produced by packing
product B. press forging and around a pattern
A. punching C. powered hammers A. sand molding
B. drawing D. impactor forging B. gravity molding
C. clanking 22. The forging blows are repeated at the rate of C. die casting
Coining several times a minute for D. plastic molding
15. A cold forming process that converts a flat into A. gravity drop hammers or board hammers
hollow vessel B. press forging
63
30. To facilitate the removal of the pattern, all B. mold A. linear momentum
surfaces parallel to the direction of withdrawal are C. alloy B. linear impulse
slightly tapered. This taper is called D. torpedo C. angular impulse
A. gate 38. The cast iron flywheels are commonly designed D. angular momentum
B. riser with a factor of safety of ________________ 46. Two parallel shaft connected by pure rolling
C. sprue A. 14 to 15 turn in the same direction and having a speed ratio
D. draft B. 8 to 9 of 2.75, what is the distance of the two shaft if the
31. In the gating system, the metal is poured into a C. 10 to 13 smaller cylinder is 22cm in diameter
sprue hole and enters a vertical passage known as D. 6 to 12 A. 16.60cm
A. gates 39. A pair of equal and opposite (not collinear) B. 25.25cm
B. downgate forces that tend cause a rotation of a body C. 30.25cm
C. draft A. couple D. 19.25cm
D. risers B. equilibrium 47. The distance between similar equality-spaced
32. Serve as accumulators to feed molten metal into C. centroids tooth surfaces in a given direction and along a given
the cavity during initial shrinkage D. vector line
A. gates 40. It is the ratio of the pitch diameter in inches to A. pitch circle
B. downgate the number of teeth B. pitch
C. draft A. pitch circle C. pitch plane
D. risers B. module D. pitch diameter
33. An entrance to the cavity maybe constricted to C. English module 48. It is simply defined as a simple push and pull
control the rate of fill and such constrictions are D. pitch diameter A. power
known as__________ 41. When the motion is diminished /decreasing B. work
A. gates instead of increasing is called C. inertia
B. downgate A. deceleration D. force
C. sprue B. retarded motion 49. How did you call opposite directional forces
D. risers C. uniform negative impulse equal in magnitude and parallel
34. Molten metal is poured into a metal or graphite D. all of these A. non coplanar
mold where pressure is not used to fill the mold 42. Which of the following is a unit or energy B. couple
A. sand molding A. ft-lb C. centroid
B. plastic molding B. BTU/hr D. coplanar
C. gravity molding C. hp 50. Which of the following terms is applied to
D. non-gravity molding D. watt quantities such as time, volume and density?
35. Suitable for creating parts of zinc, aluminum, 43. When high strength and durability are a A. couple
copper, magnesium, and lead/tin alloys requirements for choosing gear materials it is B. components
A. die casting preferable to use _________material C. resultants
B. investment casting A. hardened bronze D. scalar
C. centrifugal casting B. phenolic laminated 51. The use of hardened steel for the mating metal
D. continuous casting C. steel gear appears to give the best results and longer
36. More than how may percent of all die casting D. white iron operational life. The usual hardness in the range of
uses zinc alloys? 44. Which of the forces whose line of actions are A. over 600 BHN
A. 50% parallel but not necessarily equal in magnitude B. below 350 BHN
B. 25% A. couple C. 300 to 400 BHN
C. 75% B. resultant D. over 400 BHN
D. 80% C. non collinear 52. It is the product of the resultant of all forces
37. Molten metal is forced under pressure into a D. non concurrent acting on a body and the time
permanent metallic mold known as 45. The product of the mass and the velocity of the A. linear momentum
A. die center of gravity of the body is called B. angular momentum
64
C. linear impulse 60. Pitch diameter less the diameter of the roller 67. The changes in shape or geometry of the body
D. all of these chain is equal to due to action of a force on it is called deformation
53. The separate forces which can be so combined A. top land or
are called B. addendum A. shear stresses
A. concurrent forces C. bottom diameter B. compressive stress
B. couple D. face overlap C. stresses
C. non concurrent forces 61. Generally applied on speed reducer due to large D. strains
D. component forces speed ratio 68. The reciprocal of a diametral pitch or the ratio
54. Continuous stretching under load even if the A. bevel gears of the pitch diameter to the no. of teeth
stress is less than the yield point B. worm gears A. lead
A. plasticity C. helical gears B. involute
B. creep D. hypoid gears C. module
C. elasticity 62. If shaft size is specified as-diameter 2.00’’ max, D. clearance
D. ductility and 1.99’’ min in diameter then the 0.010’’ could 69. One of these materials is not a structural steel?
55. The most known lubricants being utilized in be defined as A. low carbon steel
whatever category of load and speed are oil, air, A. allowance B. stainless steel
grease and dry lubricants like B. variance C. tool and die steel
A. bronze C. fit D. medium carbon steel
B. silicon D. tolerance 70. In elastic body whose primary function is to
C. lead 63. A material plane was subjected to a load. When deflect order load
D. graphite the load was removed the strain disappeared. From A. clutch
56. A coupling that allows axial the structural change which of the following can be B. brake
flexibility/movement in the operation. Made of considered about this material? C. stopper
alternate bolting of steel, leather, fabric and/or A. it has high modules of elasticity D. spring
plastic material into the two flanges B. it is plastic 71. Flat leather belting not recommended for used
A. flexible disk coupling C. it does not follow Hookes law in a speed in excess of______________ fpm
B. flexing Oldham coupling D. it is elastic A. 3600
C. flexible toroidal spring coupling 64.For an evenly distributed and uniform wear on B. 6000
D. elastic-material bonded coupling each meshing gear tooth, the ideal design practice is C. 4800
57. It consists of two cranks, a stationary piece to considered a D. all of these
called the line of centers and the connecting rod is A. wear resistance alloy addition to tooth gears 72. The angle included between the sides of the
A. five bar linkage B. heat treatmentof the gears thread measured in an axial plane in a screw thread
B. three-crank linkage C. hardening of each tooth A. angle of thread
C. four-crank braces D. hunting tooth addition B. helix angle thread
D. four-bar linkage 65. helix angle in the range of _____________ C. angle between thread or 40
58. Used to change rotary motion to reciprocating degree is recommended for wide-face helical gears D. half angle thread or 20
motion A. less than 15 73. When an air entrainment agent is put into a
A. rack gears B. 20 to 35 concrete mix
B. helical gears C. less than 20 A. the water/cement ratio must be reduced
C. hypoid gears D. 20 to 22 B. the strength will decrease
D. herringbone gears 66. Difference between maximum material limits C. minimal effect
59. The effective face width of a helical gear divided mating parts. Or it is a minimum clearance or D. the strength will suffer up to 50%
by gear axial pitch maximum interference between parts 74. The ratio of moment of inertia on a cross-
A. approach ratio A. tolerance section of a beam to this section modulus is
B. arc of recess B. variance A. a measure of distance
C. arc of action C. fits B. equal to the radius of gyration and compression
D. face overlap D. allowance
65
C. multiplied by the bending moment of inertia D. 6 times D. all of these
determine the yield stress 82. Stresses that are independent of loads is 90. The rigidity of polymer can be increased by
D. equal to the area of the cross-section and tension called________________ A. furnace melting
75. The ratio of moment of inertia of the cross A. working stress B. crystallization
section of a beam to the section modulus B. simple stress C. normalizing
is___________? C. residual stress D. shot opening
A. equal to the radius of gyration D. combined stress 91. The difference between cast steel and cast iron
B. equal to the area of the cross section 83. Ability to resist deformation under stress A. all of these
C. multiplied by the bending moment to determine A. plasticity B. cast steel has usually less than 1%
the stress B. stiffness C. while cast iron has 2% or 3.6% carbon range
D. measure of distance C. toughness D. cast iron has lower strength more brittle and
76. Poisson’s ratio is the ratio of D. all of these has lower ductility than cast steel
A. elastic limit to yield strength 84. The property of material wherein the content is 92. It is a general practice to use the following
B. lateral deformation to the longitudinal continuously distributed through its entire mass allowable stresses 4000 psi for maintransmitting
deformation A. plasticity shaft and 8500 psi for small short shafts and
C. shear strain to unit strain B. homogeneity counter shaft for lineshaft carrying pulley it
D. elastic limit to shear strength C. malleability is___________ psi
77. Alloy that improves strength of steel at high D. all of these A. 7800
temperature application 85. Material having a high electrical resistance and B. 6000
A. aluminum should not be used as conductor of electrical C. 7000
B. silicon current D. 6500
C. manganese A. nickel 93. The properties of metal to withstand loads
D. chromium B. silicon base alloys without breaking down is
78. The differential of the shear equation is the C. aluminum oxide A. elasticity
A. deflection of the beam D. iron oxide B. plasticity
B. tensile strength of beam 86. The best materials for brake drums is C. strength
C. comprehensive strength of the beam A. aluminum D. strain
D. load on the beam B. steel material 94. Almost always the soldering materials are a
79. Length of contact between two mating parts in a C. cast iron combination of the following alloys
screw and nut threads measured axially is D. wrought iron A. all of these
termed___________ 87. The property that characterizes a material’s B. tin & antimony
A. length of engagement ability to be drawn into a wire C. lead & tin
B. arc of contacts A. tensile strength D. lead & antimony
C. axis of contact B. endurance limit 95. The most popular of all soldering materials in
D. depth of engagement C. ductility use has composition of
80. The sum of their addendums and deddendum is D. thermal conductivity A. 45/55% tin & lead
A. whole depth 88. The alloy materials used in the production of B. all of these
B. width of space metal working tools C. 50/50% tin & lead
C. full depth A. titanium, phosphorus D. 60/40% tin & lead
D. working depth B. vanadium, chromium, molybdenum 96. The relative strength of a cut welding could be
81. It is recommended not to have a direct drive C. tungsten, silicon, hadfield safety assumed as___________% efficiency
between driven and drive sprockets if the ratio of D. high carbon steel A. 95
their teeth exceeds ____________. Use 2 or more 89. Which of the phases of steel elements has a face- B. 90
step combination centered cubic structure? C. 98
A. 10 times A. pyrite D. 92
B. 5 times B. cementite 97. It is a work-supporting device which is bolted to
C. 8 times C. austenite the saddle of the lathe machine. I t travels with the
66
 cutting tool it is a prevention of the springing away 4. The SAE 2340 shafting contains how many C. 0.96 to 0.97
of the work piece from cutting tools percent nickels? D. All of these
A. rubber-flex collets A. 3.85 Ni 11. Shafts readily available in the market are made
B. follower rest B. 3.25 to 3.75% Ni in many ways and wide variety of material
C. tool post C. 4% Ni composition. It is likely be cold drawn carbon
D. carriage stop D. 3.84% Ni steel in size smaller than _____ inches
98. Which of the following raw materials are used 5. Which of the following standard SAE diameter.
in the foundry molding operation? designation for chromium steel? A. 3.75
A. silica sand, bentonite, flour/paste water A. 92 xx B. 5
B. silica sand paste, graphite electrode B. 3 xxx C. 4
C. silica sand and paste C. 5 xxx D. 51/2
D. silica sand, linseed oil, flour D. 11xx 12. Plain carbon steel standard designation SAE
99. Which of the following is not a part of 6. In general, alloys with high nickel content ______.
micrometer caliper? retain toughness to quiet low temperatures up A. 6xxx
A. thimble to how many degrees Fahrenheit? B. 10xx
B. spindle A. -380 C. 13xx
C. head screw B. -260 D. 2xxx
D. anvil C. -400 13. If the inertia is 90 lb ft2 and the speed of the
100. D. -320 driver shaft is to be increased from 0 to 2500
A. normalizing 7. The length of the hub should not be maid rpm in 5 seconds, shaft material is of SAE
B. flame hardening lesser than the face width of the gear. Hub 4140 with yield strength of 110000 lbs. /in2,
C. tempering lengths usually vary from 1.25 D to 2 D where find the clutch starting torque in in–lb ft.
D. annealing D is the shaft diameter. What should be the A. 159
Elements 15 reasonable diameter of the steel hub? B. 146
1. Which of the following is the allowable tensile A. 2 D C. 128
strength of the steel plates? B. 1.55 D D. 191
A. 396.41 N/m2 C. 1.8 D 14. How many 5/16 inch holes can be punch in
B. 379.31 N/m2 D. 1.20 D one motion in a steel plate made of SAE 1010
C. 296.12 N/m2 8. Torsional deflection is a significant steel 7/16 inch thick using a force of 55 tons.
D. 310.11 N/m2 consideration in the design of shaft and the The ultimate strength for shear is 50 ksi and
2. Which of the following standard SAE limit should be in the range of how many use 2 factor of safety.
designation of manganese steel? degrees/foot of length? A. 5.8
A. 13xx A. 0.4 to 1 B. 5
B. 11xx B. 0.08 to 1 C. 3.7
C. 10xx C. 0.1 to 1 D. 6.5
D. 8xx D. 0.6 to 1 15. Which of the following cannot be used in
3. Compute the torque received by the motor 9. If the pitch of a screw is 2/9 find the thread drilling machine?
shaft running at 4250 rpm. Transmitting 11hp, per inch. A. Reaming
through a 10 inch diameter 20o involute gear. A. 0.34 B. Lapping
The shaft is supported by ball bearing at both B. 5.4 C. Spot facing
ends and the gear is fixed at the middle of 8” C. 4.5 D. Broaching
shaft length. D. 17 16. A kilowatt is equal to:
A. 163 in lb 10. Steel spring material is usually hardened from A. 8851.2 in-lb/secs.
B. 132 in lb 400 to 500 BHN and the carbon content is in B. 57 BTU/min
C. 167 in lb the range of how many percent? C. 1140 joule/sec
D. 138 in lb A. 0.50 to 0.90% D. 44.200 ft-lb/min
B. 0.45 to 0.48
67
17. Molybdenum-chromium-nickel steel 24. Commonly used by steel melter as deoxidizer 31. Not adaptable to welding due to low tensile
designation. because of its easy availability and cheap price. strength and poor ductility etc.
A. SAE48xx A. Silicon A. Copper parts
B. SAE56xx B. Zinc B. Aluminum parts
C. SAE43xx C. Aluminum C. Cast iron materials
D. SAE46xx D. Manganese D. Bronze parts
18. Single force which produce the same effect 25. Curve formed by the path of a point on a 32. Bearing surface that completely surrounds the
upon a mass replacing two or more forces straight line as it rolls along a convex base journal is also called:
acting together is called: curve. The base curve is usually a circle and A. Offset bearing
A. Vector generally used as the profile of gear. B. Centrally loaded bearing
B. Component of forces A. Axial plane C. Full bearing
C. Resultant B. Arc of recess D. Babbit bearing
D. Resolution C. Involute 33. The purpose of lubrication is as mentioned
19. Permissible variation of the D. Arc of action except :
manufactured/machined dimension is called: 26. Resultant of two or more component forces is A. To lighten the load
A. Intolerance fits called: B. Prevent adhesion
B. Allowance A. Composition of forces C. Prevent corrosion/oxidation
C. Deviation B. Component D. Cool the moving elements
D. Tolerance C. Resultant 34. Tools usually used in wood pattern making in
20. Peculiar strength of the metal to resist being D. Collinear of forces foundry shop.
crushed: 27. A material having a high electrical resistance A. Saws and chisel
A. Shear strength and should not be used for conductor for B. Knives and drills
B. Compressive strength electric current. C. Band saw
C. Ultimate strength A. Alloyed magnesium D. Drill machine
D. Elastic limit B. Nickel 35. It is a plane perpendicular to the axial plane
21. What pressure is required for punching a hole C. Silicon base alloy and to the pitch plane in gears the parallel axes
2’’ diameter thru 1/4 ‘’ steel plates? D. Zinc and the plane of rotation coincides.
A. 40 tons 28. It improves red hardness of steel. A. Tangent line
B. 45 tons A. Silicon B. Transverse
C. 50 tons B. Cobalt C. Straight line
D. 35 tons C. Lead D. Reference angle
22. What is the working strength of a 2’’ bolt D. Manganese 36. A 36 tooth pinion with a turning speed of 300
which is screwed up tight in a packed joint 29. Designated pipe color used in communication. rpm drives 120 tooth gear of 14 1/2 o d
when the allowable working stress is 12000 psi? A. Silver gray involute full depth pressure angle. What would
A. 20.4 ksi B. Bare be the speed of the driven gear?
B. 23.4 ksi C. Aluminum gray A. 1000 rpm
C. 22.4 ksi D. White B. 90 rpm
D. 18 ksi 30. The design stress and factor of safety are C. 100 rpm
23. Determine the bursting steam pressure of a related in the following manner. D. 140 rpm
steel shell with a diameter of 10inches and A. Design stress= ultimate stress/ factor of 37. Several force which can be combined is called:
made of ¼ thick steel plates. The joint safety A. Resultant
efficiency is at 70% and the tensile strength is B. Ultimate stress = factor or safety / design B. Components
60 ksi. stress plus concentration factor C. Composition of forces
A. 4400 psi C. Factor or safety = design stress / ultimate D. Collinear forces
B. 42.8 ksi stress 38. The surface along the fillet curve or between
C. 10.5 ksi D. Design stress= factor of safety / time stress the fillets radius of the two adjacent tooth or a
D. 8500 psi concentration factor gear:
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 A. Bottom land B. Planimeter D. It is plastic
B. Fillet C. Dial caliper 53. Allowance added in the casing pattern to
C. Flank D. Micrometer compensate for the contraction of metal
D. Top land 46. Molybdenum steel standard designation SAE. A. Tapering allowance
39. Ideal herringbone gear helix is in the range of: A. 88xx B. Finish allowance
A. Bottom land B. 40xx C. Shrinkage allowance
B. Fillet C. 48xx D. Draft pattern
C. Flank D. 46xx 54. Ratio of the angle of action to the pitch angle
D. Top land 47. Also called eccentrically loaded bearing is: A. Contact ratio
40. Ideal herringbone gear helix is in the range of: A. Full bearings B. Ratio gearing
A. 30 to 45 B. Partial bearings C. Approach ratio
B. 25 to 30 C. Offset bearings D. Module
C. 35 to 50 D. Fitted bearings 55. General purpose grade of steel used for broiler
D. 15 to 20 48. In the selection of wire rope, regular lay means plate, structure etc. usually with carbon
41. A three extension coil spring is hooked in wire and strands arrange in the following content of:
series that supports a single weight of 100 kgs. manner. A. 0.20 to 30%C
The first spring is rated at 0.400 kg/mm and A. Twisted in the same direction B. 0.35 to 0.50%C
the other 2 lower springs is rated at .64 kg/in. B. Twisted in opposite direction C. 0.15 to 0.25%C
Compute the total deflection. C. Twisted in any direction D. All of these
A. 263 mm D. Twisted in along direction 56. The angle made by the helix of the thread(in a
B. 156 mm 49. In involute teeth, the pressure angle is often straight thread) at the pitch diameter with a
C. 268 mm defined as the angle between the line of action plane perpendicular to the axis called:
D. None of these and the line tangent to the pitch circle. It is A. Angle of thread
42. The lack of backlash in spur gear also termed as: B. Lead angle
design/operation may result to: A. Helix angle C. Truncation
A. Overloading B. Angle of obliquity D. Lead
B. All of these C. Angle of recess 57. The principle materials used in the production
C. Jamming D. Arc of action of metal working tools:
D. Overheating 50. Instantaneous center is also called: A. High carbon steel
43. The distance from a point on a screw thread to A. Centro B. Titanium, phosphorous
corresponding points on the next thread B. Virtual center C. Tungsten, silicon, had field Mn
measure along the axis. C. Rot Opole D. Vanadium, chromium, molybdenum
A. Flank D. All of these 58. In the interest of design simplification and
B. Crest 51. What is the stress to strain ratio within the good kinematics compromise bevel gears
C. Lead elastic limit? adopted a standard pressure angle of ______
D. Pitch A. Elastic limit degrees/
44. As recommended the center to center distance B. Elastically A. 200 involute stub
between sprockets should not be less than C. Modulus of elasticity B. 14 1/2 involute full depth
______ times the bigger sprocket. D. Compressive ratio C. 200
A. 2.216 52. A material plane was subjected to a load. D. 17 1/2
B. 1 1/2 When the load was removed the strain 59. The property of material that relates the lateral
C. 1 3/4 disappeared. From the structural change which strain to longitudinal strain.
D. 2.59 of the following can be considered about this A. Stress
45. Machine shop instrument for checking the material? B. Poisson’s ratio
flatness of plane surface to 10ths of A. It does not follow Hooke’s Law C. Strain
thousandths of the centimeter. B. It is elastic D. Endurance limit
A. Blade type micrometer C. It has high modulus of elasticity
69
60. It is generally recommended and normal for a B. Land capacity of the connection if the allowable
designer to add a hunting tooth to evenly C. Addendum shearing stress in the bolt is 50 MN/m2.
distribute the wear on meshing teeth like a 53 D. Hunting tooth A. 59.95 KN-m
teeth gears mesh with 30 teeth pinion. Find 67. The function of clutch in the machine tool is? B. 46.15 KN-m
the rotation of pinion to mesh with same pair A. Lowering of drive speed C. 52.6 KN-m
of teeth again. B. To disconnect or connect at will the D. 43.8 KN-m
A. 120 drive 74. The material that can cut/wear hardest
B. 61 C. Alignment of the drive shaft substance subjected to:
C. 81 D. To insure that two shaft line up at high A. Carbide
D. 53 speed B. Tungsten
61. The shaft whose torque varies from 2000 to 68. A resulting force that replace two or more C. Abrasive
6000 in lbs has 1 1/2 in in diameter and forces acting together. D. Vanadium
60000 psi yield strength. Compute for the A. Vector 75. A ridge of uniform section in the form of a
shaft mean average stress. B. Resultant helix cut around the circumference of a
A. 6036 psi C. Couple cylinder and advancing along the axis.
B. 5162 psi D. Equilibrant A. Thread roots
C. 6810 psi 69. Stress relieving is also _____ for the purpose of B. Screw threads
D. 5550 psi reducing the internal stresses of steel C. Helix thread
62. The angle made by the helix of the thread(in a material/metal. D. Chamfers
straight thread) at the pitch diameter with a A. Normalizing 76. Cast iron flywheel are commonly designed
plane perpendicular to the axis is called: B. Annealing with factor of safety of
A. Lead angle C. Tempering A. 10 to 13
B. Lead D. All of these B. 10 to 14
C. Truncation 70. Matensite (stainless steel) contains 4 to 26% C. 10 to 12
D. Angle of thread Cr. And a maximum of _____% nickel D. 8 to 13
63. The rule of thumb in journal bearing design; A. 2.5 77. Class of material exhibiting decreases electrical
the clearance ratio/clearance should be. B. 3.5 conductivity with increasing temperature.
A. 0.0090 C. 3.25 A. Aluminum
B. 0.0010 D. 2.0 B. Metals
C. 0.0042 71. Matensite (stainless steel) contains 4 to 26% C. P-type semiconductor
D. 0.00120 Cr. And a maximum of _____% nickel D. N-type semiconductor
64. The moment of inertia of a rectangle whose A. 2.5 78. The welding made along the edges of two
base is “b” height “h” about its based is: B. 3.5 parallel plates is called:
A. bh3/4 C. 3.25 A. Groove joint
B. bh3/24 D. 2.0 B. Edge joint
C. bh3/12 72. Compute the deflection of a 18 coil helical C. Fillet joint
D. bh3/3 soaring having a load of 100kgs. The modulus D. Corner joint
65. Cold rolled shafting is not available in of elasticity in shear of spring is 96.62 Gpa, 79. Not part and in fact should not be used in the
diameter larger than: OD of 9256 cm and width diameter of 9525 steel melting process:
A. 6 inches mm. The spring is square and ground ends. A. Coke
B. 6 ½ inches A. 9 mm B. Zinc
C. 5 inches B. 112 mm C. Silicon
D. 5 ½ inches C. 101 mm D. Aluminum
66. Height of tooth above pitch circle or the radial D. 14 mm 80. Rule of thumb in calculating the equipment
distance between pitch circle and top land of 73. A flanged bolt coupling has ten (10) steel 25.4 foundation mass should be _____ times the
the tooth. mm diameter bolts evenly tighten around a weight of the machinery it is supposed to
A. Top root 415 mm bolt circle. Determine the torque support.
70
 A. 3 – 5 87. Which of the following is an iron based alloy avoid possible distortion etc. Peening can also
B. 3 – 9 containing 9 – 16% chromium? ____process at the same time.
C. 3 – 6 A. Mn Hadfield steel A. Tempering
D. 2 – 4 B. Stainless steel B. Normalizing
81. The strength of non ferrous alloys is at C. Chrome-molly steel C. Mar tampering
maximum at room temperature while that D. High chrome steel D. Annealing
ferrous metal has a maximum strength at 88. Shafting up to 3 inches in diameter is usually 94. What do you call the distance between rivet
______0F made from cold rolled steel and the common center nearest each other in adjacent rows?
A. 400 biggest diameter cold rolled steel is: A. Pitch
B. 450 A. 4 1/4 inches B. Margin
C. 1200 B. 6 3/4 inches C. Back pitch
D. 350 C. 6 7/8 inches D. Diagonal pitch
82. The ratio of stress acting on an elastic D. 5 inches 95. Which of the following is a major alloy in tool
substance to the decrease in volume per unit 89. It is ideal for maximum quietness in sprockets steel?
volume. drive operation to choose _____ or more A. Cr
A. Bulk modulus teeth.\ B. Cobalt
B. Elastic limit A. 24 C. Fen
C. Modulus of resilience B. 27 D. Mn
D. Modulus of elasticity C. 18 96. Should two equal and opposite collinear forces
83. The normal helix angle in helical gear is D. 21 is added to the forces already in equilibrium,
recommended in the range of _____ degrees. 90. All associate with standard material which of the following statement is true?
A. Less than 18 specification except: A. Unbalance moment is maintained
B. 15 to 25 A. American Iron and Steel Institute B. Equilibrium is maintained
C. 20 to 35 B. Society of Automotive Engineers C. Equilibrium is disturbed
D. 20 to 30 C. Southeast Asia Iron and Steel Institute D. It creates an unbalanced situation
84. Type of bolt commonly used in the D. American Society for Testing Material 97. In the pressure vessels, which of the following
construction that is threaded in both ends. 91. For stable equipment foundation the total resists internal pressure through bending?
A. Stud bolt combined engine driven equipment and A. Shell – type element
B. Hex bolt foundation center of gravity must be kept B. Cam – type element
C. Acne threaded bolt below the foundations too that usually about C. Plate – type element
D. Square threaded bolts ______ times the usual total combined weight D. Spherical – type element
85. It is rigid piece which serves to transmit force of the machinery it is supposed to support. 98. Which of the following flanges is suitable for
from a piece another piece or to cause / A. 3 to 4 low and moderate pressure?
control motion. B. 2 to 4 A. Ring – flange
A. Follower C. 3 to 7 B. Lap joint flange
B. Cam motion D. 3 to 5 C. Tapered - hub flange
C. Crank 92. A cylinder tank with 10” inside diameter D. Welding neck type
D. Link contains oxygen gas at 2500 psi. Calculate the 99. It is the process of pre – stressing or over –
86. A 20 kgs. Cast iron piece rest on a plain required wall thickness in (mm) under stress of stressing of a hollow cylindrical member
horizontal aluminum surface. To move the 28 000 psi. beyond the elastic range.
object it needs a force of 7 lbs. The density of A. 11.34 mm A. Pre-stage
AI is 0.098 lb/in3 and iron is 0.260 lb/in3 B. 12.44 mm B. Autofrettage
A. 0.172 C. 10.24 mm C. Stress relieving
B. 1.601 D. 10.54 mm D. Countersinking
C. 0.186 93. The process of peening the joint portion 100. It is the phenomenon occurring when two
D. 0.160 immediately after the welding greatly improves touching surfaces have a high contact pressure
the fusion structures avoids possible cracking,
71
 and when these surfaces have minute relative D. joint efficiency D. intangible fits
motion. 7. What is the usual factor of safety for a pressure 14. What is the direction of the predominant
A. Pre-stressing vessel? surface pattern?
B. Fretting A. 4 A. Smoothness
C. Friction B. 1.5 B. Waviness
D. Carving C. 3 C. lay
D. 5 D. roughness
ELEMENTS 16 8. It is the permissible variation of the size. 15. It is the irregularities of departures from the
1. For ordinary steel, the modulus of elasticity A. Tolerance nominal surface of greater spacing than
usually falls between __________ million B. Limit roughness?
pounds. C. fits A. Waviness
A. 20 to 30 D. none of these B. roughness
B. 35 to 45 9. Considering that there is no fit, what is the C. lay
C. 20 to 35 permissible liberal tolerance in machining D. smoothness
D. 25 to 30 work? 16. It is the surface finish of micrometer in rms.
2. The modulus of elastic for metals in A. ±0.010 A. 1
compression is usually taken as that in: B. ±0.090 B. 2
A. Tension C. ±0.020 C. 3
B. Bearing D. ±0.050 D. 4
C. Yield 10. Which of the following is the tolerance where 17. Which of the following gears has the simplest
D. ultimate the size of a part may be larger only, or smaller type of teeth?
3. Which of the following is the ratio of moment only, than the given dimension? A. Helical gears
and stress? A. Unilateral B. spur gears
A. Strain B. Lateral C. bevel gears
B. section modulus C. Bilateral D. worm gears
C. contraction D. none of these 18. In gears, an imaginary circle on which the lever
D. passions ratio 11. A tolerance where the size of the part is arm is based in;
4. What is the flexural stress when of a permitted to be either larger or smaller than A. Base circle
symmetrically cross-section beam when the the given dimension. B. pitch circle
vertical shear is maximum? A. Unilateral C. addendum circle
A. Infinity B. Lateral D. clearance circle
B. Zero C. Bilateral 19. It is the circle tangent to the addendum of the
C. maximum D. none of these meshing gears.
D. minimum 12. Which of the following is the basis for ASA A. Clearance circle
5. The riveted joint in ASME Code has as design fits? B. base circle
surface compressive stress ________ higher A. Basic number system C. Addendum circle
than the design tensile stress. B. basic hole system D. pitch circle
A. 70% C. basic size system 20. The distance from a point on one gear to the
B. 60% D. unit system corresponding point measured along the base
C. 35% 13. When the hole is smaller than the shaft, it will circle.
D. 50% take force or pressure to put the cold parts A. Normal pitch
6. What is the ratio of the minimum strength of together. In such case the allowance is B. circular pitch
joint to the strength of solid joint in the negative. Which of the following terms is C. axial pitch
pressure vessel? appropriate for such allowance? D. diametral pitch
A. Efficiency A. Negative fits of metal 21. A line passing through the pitch point that is
B. relative strength B. interference of metal tangent to both base circles of a gear is:
C. performance factor C. positive fits of the metal A. Pressure line
72
 B. perpendicular line B. Steel bolt A. Helical spring wire
C. tangent line C. machine bolt B. stainless steel
D. center line D. coupling bolt C. hard drawn wire spring
22. Which of the following is the contact ratio for 30. It is a locking device that is used to maintain D. copper
a good gear design? pressure between threads of the bolt and nut. 38. What is the hard drawn (80% reduction)
A. 1.5:1 A. Gasket spring wire made of high carbon steel?
B. 1:1.3 B. lock washer A. Oil tempered wire
C. 1:3 C. lock nut B. music wire
D. 1.2:2 D. filler C. tension wire
23. In pressure vessels, which of the following 31. What is the large wood screw used to fasten D. chromium wire
resists internal pressure through tension? machinery and equipment. 39. Which of the following wires with good quality
A. Shell-type element A. Lag screw and is used for impact loading?
B. cam type element B. loss screw A. Hard drawn wire
C. plate-type element C. wood screw B. song wire
D. spherical type element D. cross screw C. helical spring wire
24. It is the study of the body’s motion 32. What is the minimum length of contact in a D. chromium-silicon wire
independent of the forces on the body. tapped hole for cast iron? 40. When heat-threated wire is coiled cold, it
A. Kinetics A. 1.7D should be stress relieved for bending stress and
B. Dynamics B. 1.5D after cooling it is heated at some:
C. Kinematics C. 1.2D A. 400°F
D. mechanics D. 2.1D B. 600°F
25. What is the reciprocal of the velocity ratio? 33. It is the ratio of the mean diameter of coil over C. 700°C
A. Train value the coil diameters. D. 500°F
B. Ratio factor A. Wahl factor 41. Which of the following is not a function of
C. modular value B. spring index spring?
D. none of these C. coil ratio A. Absorbs energy
26. It is a type of bolt finished all over and has D. lead scale B. source of potential energy
usually having coarse threads. 34. What is the overall length of springs when it is C. measure weight
A. Coupling bolt compress until all adjacent coils touched? D. measure thickness
B. stud bolt A. Free length 42. Which of the following is the type of spring
C. machine bolt B. solid length made in the form of dished washer?
D. automobile bolt C. compressed length A. Air spring
27. It is a type of bolt distinguishes by a short D. expansion length B. believe spring
portion of the shank underneath the head 35. It is the length of a coil spring under no load? C. volute spring
being square or finned or ribbed. A. Compressed length D. motor spring
A. Coupling bolt B. free length 43. What is the type of the failure due to
B. stud bolt C. solid height instability?
C. machine bolt D. none of these A. Buckling
D. carriage bolt 36. In general, the steels springs are made of B. slenderness ratio
28. It is a type of bolt threaded on both ends and relatively of relative height carbon steel usually; C. Stability
can be used where a through bolt impossible. A. 5% D. Euler’s failure
A. Coupling bolt B. less than 0.5% 44. What type of formula that is best applied to a
B. carriage bolt C. more than 0.5% very slender column?
C. stud bolt D. 7.5% A. Column formula
D. machine bolt 37. It is a low cost spring materials, suitable where B. slenderness formulas
29. Which of the following is not a type of bolt? service is not severe and dimensional precision C. moment formulas
A. Stud bolt is not needed. D. Euler formula
73
45. If two principal stresses is zero, the state of 52. What is the other name given to short shafts in C. 0.002
stress is: machines? D. 0.001
A. Biaxial A. Spindles 59. What type of key that allows the hub to move
B. mono-axial B. head shafts along the shaft but prevents the rotation of the
C. uniaxial C. core shafts shaft?
D. triaxial D. all of these A. Woodruff key
46. What do you call the system that has finite 53. The other name given to a line shaft. B. Feather key
values of principal stresses? A. Countershaft C. Gibbs key
A. Triaxial B. Main shaft D. Square key
B. Uniaxial C. Long shaft 60. What is the other name for Kennedy key?
C. monoaxial D. Head shaft A. Tangential key
D. biaxial 54. The speed at which the center of mass will be B. Woodruff key
47. A screw that requires positive torque to lower equal the deflecting forces on the shaft; the C. Saddle key
the load, or to loosen the screw if it has been shaft with its attached bodies will then vibrate D. Roll pin
turned tight against a resistance. violently, since the centrifugal force change its 61. What type of fits used for involute spline?
A. Self locking screw direction as the shaft turns in: A. Close fit
B. lock screw A. Nominal speed B. Press fit
C. self screw B. Critical speed C. sliding fit
D. power screw C. Relative speed D. All of these
48. What is the rotating member used in D. Mean speed 62. It is used for permanent fits and similar to
transmitting power? 55. An old rule of thumb for transmission shafting involute splines except that the pressure angle
A. Shaft is that the deflection should not exceed is 14.5˚.
B. counter shaft _________ of length between supports. A. Separation load
C. axle A. 0.01 in. per foot B. Splines shaft
D. washer B. 0.08 in. per foot C. Stub serrations
49. For machineries shop the permissible C. 0.02 in. per foot D. Involute serrations
deflection is approximately: D. 0.05 in. per foot 63. It is used in a coupling or in addition to
A. 0.02in/ft 56. For transmission shafts the allowable another coupling where, in case of overload,
B. 0.03in/ft deflection is 1 degree in a length of there is danger of injury to machine or to
C. 0.01in/ft __________ diameters. material in process.
D. 0.05in/ft A. 20 A. Shear pin
50. For shafts, the shear due to bending is a B. 25 B. Flange coupling
maximum at the neutral plane where the C. 30 C. Involute serrations
normal stress is: D. 40 D. King pin
A. Minimum 57. What is the limiting torsional deflection for 64. What is the maximum shaft angle for a single
B. Constant machinery shafts, if the criteria of limiting Hooke’s coupling?
C. maximum also torsional deflection vary from 0.08˚ per foot of A. 10˚
D. zero length? B. 17
51. The minimum value of numerical combined A. 1˚ C. 15˚
shock and fatigue factor to be applied in every B. 2.5˚ D. 20˚
case to the computed bending moment of the C. 2˚ 65. What are the two principal parts of a Journal
shaft is: D. 3.5˚ Bearing?
A. 2.0 58. Bevel gears of sizes 5 inches to 15 inches A. Bearing and journal
B. 1.75 should not be lift or depress more B. Shaft and babbit
C. 1.5 than__________, as Gleason statement. C. Clearance and fitted
D. 1.3 A. 0.004 D. Shaft and cylinder
B. 0.003
74
66. When the line of action of the load bisects the B. Heavy D. 5000 to 1000 fpm
arc of partial bearing, the bearing said to be: C. Light 81. The tension in the belt due to centrifugal force
A. Eccentrically loaded D. All of these increasing rapidly above about:
B. Fully loaded 74. A type of roller bearing in which the balls are A. 2500 fpm
C. Centrally loaded assembled by the eccentric displacement of the B. 3000 fpm
D. Partially loaded inner ring. C. 35000 fpm
67. What is the difference in radii of the bearing A. shallow groove ball bearing D. 4000 fpm
and Journal? B. filling-slot ball bearing 82. For leather belts, recommended speed is:
A. Even clearance C. self-aligning ball bearing A. 6000 to 7000 fpm
B. Clearance ratio D. deep-groove ball bearing B. 5000 to 6000 fpm
C. Odd clearance 75. Which of the following is not a type of ball C. 7000 to 8000 fpm
D. Radial clearance bearing? D. 4500 to 5600 fpm
68. When radii of both the bearing and the A. shallow groove ball bearing 83. The recommended initial tension of the belt is:
journal are the same, then the bearing is said B. filling-slot ball bearing A. 75 lb/in of width
to be: C. self-aligning ball bearing B. 73 lb/in of width
A. Fitted bearing D. deep-groove ball bearing C. 71 lb/in of width
B. Clearance bearing 76. Which of the following is the approximate D. 80 lb/in of width
C. Full bearing density of the leather belt? 84. Two shafts at right angles to each other may be
D. Ambiguous bearing A. 0.035 lb/in3 connected by what arrangement?
69. What is the line that passes through the B. 0.0135 lb/in3 A. Half turn
centers of the bearing and the journal? C. 0.025 lb/in3 B. Quarter turn
A. Line of action D. 0.0465 lb/in3 C. ¾ turn
B. Line of centers 77. Which of the following is the approximate D. One turn
C. Line of symmetry density of a fat rubber belt? 85. The minimum number of teeth on a smaller
D. Tangent line A. 0.055 lb/in3 sprocket for low speed is:
70. Which of the following is considered B. 0.0135 lb/in3 A. 12
advantageous for bearing materials? C. 0. 045 lb/in3 B. 21
A. Conformability D. 0.0465 lb/in3 C. 17
B. Compatibility 78. A toothed wheel whose tooth elements are D. 14
C. Embed ability straight and parallel to the shaft axis or used to 86. The minimum number of teeth on a smaller
D. All of these transmit motion and power between parallel sprocket for moderate speed is:
71. A conclusion repeatedly verified by experiment shafts. A. 17
is that the smoother surface: A. Helical gear B. 21
A. Has the greater load capacity of the B. Spur gear C. 12
bearing C. Worm gear D. 14
B. Has the lesser capacity of the bearing D. Bevel gear 87. The minimum number of teeth on a smaller
C. Has constant load 79. The breaking strength of oak-tanned beltings sprocket for high speed is:
D. None of these varies from 3 to more than: A. 21
72. Which of the following considers the 200 A. 5 ksi B. 24
series of bearing? B. 6 ksi C. 12
A. Heavy C. 7 ksi D. 14
B. Medium D. 9 ksi 88. The resultant of a pair of equal forces but
C. Light 80. Experience suggests that the most economical opposite in direction is:
D. All of these designs are obtained for a belt speed of: A. Concurrent
73. Which of the following considers the 300 A. 6000 to 7500 fpm B. Couple
series of bearing? B. 3000cto 5000 fpm C. Non-concurrent
A. Medium C. 3500 to 4700 fpm D. Resultant
75
89. The helical and herringbone gear teeth cut 95. Flat belt that is too tight will induce strain on 2. The modulus of elastic for metals in
after heat treatment should have a hardness in the bearing and belt __________. compression is usually taken as that in:
the range of 210/300BHN. The pinion gear A. Life will be shortened A. Tension
teeth hardness on the other hand B. Result to uneconomical operation B. Bearing
ideally/normally should be at __________ C. Suffer/shatter C. yield
BHN. D. Will be sheared/cut D. ultimate
A. 250/320 96. The resulting cross-sectional area of the tensile 3. Which of the following is the ratio of moment
B. 350/380 test specimen divided by the specimen original and stress?
C. 400 area is called: A. Strain
D. 340/350 A. Charpy test B. section modulus
90. As a rule, the center distance between B. % elongation C. contraction
sprockets should not be less than __________ C. Impact test D. passions ratio
times the diameter of the bigger sprocket and D. Izod test 4. What is the flexural stress when of a
not less than 30 times the pitch nor more than 97. SAE 51XXX belongs to the __________ steel symmetrically cross-section beam when the
about 50 times to pitch. family. vertical shear is maximum?
A. 1.5 A. Carbon A. Infinity
B. 2 B. Chromium B. Zero
C. 2.5 C. Manganese C. Maximum
D. 3 D. Nickel D. minimum
91. A single force which produces the same effect 98. In itself, it is a lubricant and usually one of the 5. The riveted joints in ASME Code have as
upon a mass as two or several forces acting important elements in casting non-ferrous design surface compressive stress __________
together is called: metals like bronze, for example: higher than the design tensile stress.
A. Components A. Antimony A. 70%
B. Composition forces B. Babbit B. 60%
C. Resolution forces C. Lead C. 35%
D. Resultant D. Zinc D. 50%
92. All forces in the same plane are called: 99. Gasket material, which should avoid hot 6. What is the ratio of the minimum strength of
A. Coplanar liquid/steam applications. joint to the strength of solid joint in the
B. Couple A. Asbestos fiber pressure vessel?
C. Parallel B. Nylon fiber A. Efficiency
D. Resultant C. Rubberized B. relative strength
93. Which of the following laws which states that D. Wool C. performance factor
the force of attraction between two bodies is 100. The same material properties all over / direction D. joint efficiency
directly proportional to the product of their and at any particular point in a structural 7. What is the usual factor of safety for a pressure
masses and inversely proportional to distance member is: vessel?
square between their centers. A. Heterogeneous A. 4
A. Hooke’s law B. Homogenous B. 1.5
B. Law of gravitation C. Isentropic C. 3
C. Law of motion D. Isotropic D. 5
D. Newton’s law Elements 16 8. It is the permissible variation of the size.
94. Any object thrown upward will return to earth 1. For ordinary steel, the modulus of elasticity A. Tolerance
with the magnitude of the terminal velocity usually falls between __________ million B. limit
equal to: pounds. C. fits
A. 50% of the initial velocity A. 20 to 30 D. none of these
B. 80% of the initial velocity B. 35 to 45 9. Considering that there is no fit, what is the
C. About 90% of the initial velocity C. 20 to 35 permissible liberal tolerance in machining
D. The initial velocity D. 25 to 30 work?
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 A. ±0.010 A. 1 24. It is the study of the body’s motion
B. ±0.090 B. 2 independent of the forces on the body.
C. ±0.02 C. 3 A. Kinetics
D. ±0.050 D. 4 B. Dynamics
10. Which of the following is the tolerance where 17. Which of the following gears has the simplest C. Kinematics
the size of a part may be larger only, or smaller type of teeth? D. Mechanics
only, than the given dimension? A. Helical gears 25. What is the reciprocal of the velocity ratio?
A. Unilateral B. spur gears A. Train value
B. Lateral C. bevel gears B. Ratio factor
C. Bilateral D. worm gears C. modular value
D. none of these 18. In gears, an imaginary circle on which the lever D. none of these
11. A tolerance where the size of the part is arm is based in; 26. It is a type of bolt finished all over and has
permitted to be either larger or smaller than A. Base circle usually having coarse threads.
the given dimension. B. pitch circle A. Coupling bolt
A. Unilateral C. addendum circle B. stud bolt
B. Lateral D. clearance circle C. machine bolt
C. Bilateral 19. It is the circle tangent to the addendum of the D. automobile bolt
D. none of these meshing gears. 27. It is a type of bolt distinguishes by a short
12. Which of the following is the basis for ASA A. Clearance circle portion of the shank underneath the head
fits? B. base circle being square or finned or ribbed.
A. Basic number system C. Addendum circle A. Coupling bolt
B. basic hole system D. pitch circle B. stud bolt
C. basic size system 20. The distance from a point on one gear to the C. machine bolt
D. unit system corresponding point measured along the base D. carriage bolt
13. When the hole is smaller than the shaft, it will circle. 28. It is a type of bolt threaded on both ends and
take force or pressure to put the cold parts A. Normal pitch can bbe used where a through bolt impossible.
together. In such case the allowance is B. circular pitch A. Coupling bolt
negative. Which of the following terms is C. axial pitch B. carriage bolt
appropriate for such allowance? D. diametral pitch C. stud bolt
A. Negative fits of metals 21. A line passing through the pitch point that is D. machine bolt
B. interference of metal tangent to both base circles of a gear is: 29. Which of the following is not a type of bolt?
C. positive fits of the metal A. Pressure line A. Stud bolt B. Steel bolt
D. intangible fits B. perpendicular line C. machine bolt D. coupling bolt
14. What is the direction of the predominant C. tangent line 30. It is a locking device that is used to maintain
surface pattern? D. center line pressure between threads of the bolt and nut.
A. Smoothness 22. Which of the following is the contact ratio for A. Gasket B. lock washer
B. Waviness a good gear design? C. lock nut D. filler
C. Lay A. 1.5:1 31. What is the large wood screw used to fasten
D. roughness B. 1:1.3 machinery and equipment.
15. It is the irregularities of departures from the C. 1:3 A. Lag screw B. loss screw
nominal surface of greater spacing than D. 1.2:2 C. wood screw D. cross screw
roughness? 23. In pressure vessels, which of the following 32. What is the minimum length of contact in a
A. Waviness resists internal pressure through tension? tapped hole for cast iron?
B. Roughness A. Shell-type element A. 1.7D B. 1.5D
C. Lay B. cam type element C. 1.2D D. 2.1D
D. smoothness C. plate-type element 33. It is the ratio of the mean diameter of coil over
16. It is the surface finish of micrometer in rms. D. spherical type element the coil diameters.
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 A. Wahl factor B. spring index 45. If two principal stresses is zero, the state of 55. An old rule of thumb for transmission shafting
C. coil ratio D. lead scale stress is: is that the deflection should not exceed
34. What is the overall length of springs when it is A. Biaxial B. mono-axial _________ of length between supports.
compress until all adjacent coils touched? C. uniaxial D. triaxial A. 0.01 in. per foot
A. Free length B. solid length 46. What do you call the system that has finite B. 0.08 in. per foot
C. compressed length D. expansion length values of principal stresses? C. 0.02 in. per foot
35. It is the length of a coil spring under no load? A. Triaxial B. uniaxial D. 0.05 in. per foot
A. Compressed length B. free length C. monoaxial D. biaxial 56. For transmission shafts the allowable deflection
C. solid height D. none of these 47. A screw that requires positive torque to lower is 1 degree in a length of __________ diameters.
36. In general, the steels springs are made of the load, or to loosen the screw if it has been A.20 B. 25
relatively of relative height carbon steel usually; turned tight against a resistance. C. 30 D. 40
A. 5% B. less than 0.5% A. Self locking screw B. lock screw 57. What is the limiting torsional deflection for
C. more than 0.5% D. 7.5% C. self screw D. power screw machinery shafts, if the criteria of limiting torsional
37. It is a low cost spring materials, suitable where 48. What is the rotating member used in deflection vary from 0.08˚ per foot of length?
service is not severe and dimensional precision transmitting power? A.1˚ B. 2.5˚
is not needed. A. Shaft B. counter shaft C.2˚ D. 3.5˚
A. Helical spring wire B. stainless steel C. axle D. washer 58. Bevel gears of sizes 5 inches to 15 inches should
C. hard drawn wire spring D. copper 49. For machineries shop the permissible not be lift or depress more than__________, as
38. What is the hard drawn (80% reduction) deflection is approximately: Gleason statement.
spring wire made of high carbon steel? A. 0.02in/ft B. 0.03in/ft A. 0.004 B. 0.003 C. 0.002 D. 0.001
A. Oil tempered wire B. music wire C. 0.01in/ft D. 0.05in/ft Answer: B
C. tension wire D. chromium wire 50. For shafts, the shear due to bending is a 59. What type of key that allows the hub to move
39. Which of the following wires with good quality maximum at the neutral plane where the along the shaft but prevents the rotation of the
and is used for impact loading? normal stress is: shaft?
A. Hard drawn wire B. song wire A. Minimum B. constant A. Woodruff key B. Feather key
C. helical spring wire D. chromium-silicon C. maximum also D. zero C. Gibbs key D. Square key
wire 51. The minimum value of numerical combined 60. What is the other name for Kennedy key?
40. When heat-threated wire is coiled cold, it shock and fatigue factor to be applied in every A. Tangential key B. Woodruff key
should be stress relieved for bending stress and case to the computed bending moment of the C. Saddle key D. Rollpin
after cooling it is heated at some: shaft is: 61. What type of fits used for involute spline?
A. 400°F B. 600°F C. 700°C D. 500°F A. 2.0 B. 1.75 A. Close fit B. Press fit
41. Which of the following is not a function of C. 1.5 D. 1.3 C. Sliding fit D. All of these
spring? 52. What is the other name given to short shafts in 62. It is used for permanent fits and similar to
A. Absorbs energy B. source of potential energy machines? involute splines except that the pressure angle
C. measure weight D. measure thickness A. Spindles B. head shafts is 14.5˚.
42. Which of the following is the type of spring C. core shafts D. all of these A. Separation load B. Spline shaft
made in the form of dished washer? 53. The other name given to a line shaft. C. Stub serrations D. Involute serrations
A. Air spring B. believe spring A. Countershaft B. Main shaft 63. It is used in a coupling or in addition to
C. volute spring D. motor spring C. Long shaft D. Head shaft another coupling where, in case of overload,
43. What is the type of the failure due to 54. The speed at which the center of mass will be there is danger of injury to machine or to
instability? equal the deflecting forces on the shaft; the shaft material in process.
A. Buckling B. slenderness ratio with its attached bodies will then vibrate violently, A. Shear pin B. Flange coupling
C. stability D. Euler’s failure since the centrifugal force change its direction as the C. Involute serrations D. King pin
44. What type of formula that is best applied to a shaft turns in: 64. What is the maximum shaft angle for a single
very slender column? A. Nominal speed B. Critical speed Hooke’s coupling?
A. Column formula B. slenderness formulas C. Relative speed D. Mean speed A.10˚ B. 17˚
C. moment formulas D. Euler formula C. 15˚ D. 20˚
78
65. What are the two principal parts of a Journal 75. Which of the following is not a type of ball 86. The minimum number of teeth on a smaller
Bearing? bearing? sprocket for moderate speed is:
A. Bearing and journal B. Shaft and babbit A. shallow groove ball bearing A.17 B. 21
C. Clearance and fitted D. Shaft and cylinder B. filling-slot ball bearing C. 12 D. 14
66. When the line of action of the load bisects the C. self-aligning ball bearing 87. The minimum number of teeth on a smaller
arc of partial bearing, the bearing said to be: D. deep-groove ball bearing sprocket for high speed is:
A. Eccentrically loaded B. Fully loaded 76. Which of the following is the approximate A.21 B. 24
C. Centrally loaded D. Partially loaded density of the leather belt? C. 12 D. 14
67. What is the difference in radii of the bearing A.0.035 lb/in3 B. 0.0135 lb/in3 88. The resultant of a pair of equal forces but
3
and Journal? C. 0.025 lb/in D. 0.0465 lb/in3 opposite in direction is:
A. Even clearance B. Clearance ratio 77. Which of the following is the approximate A. Concurrent B. Couple
C. Odd clearance D. Radial clearance density of a fat rubber belt? C. Non-concurrent D. Resultant
68. When radii of both the bearing and the A.0.055 lb/in3 B. 0.0135 lb/in3 89. The helical and herringbone gear teeth cut
3
journal are the same, then the bearing is said C. 0.045 lb/in D. 0.0465 lb/in3 after heat treatment should have a hardness in
to be: 78. A toothed wheel whose tooth elements are the range of 210/300BHN. The pinion gear
A. Fitted bearing B. Clearance bearing straight and parallel to the shaft axis or used to teeth hardness on the other hand
C. Full bearing D. Ambiguous bearing transmit motion and power between parallel ideally/normally should be at __________
69. What is the line that passes through the shafts. BHN.
centers of the bearing and the journal? A. Helical gear B. Spur gear A.250/320 B. 350/380
A. Line of action B. Line of centers C. Worm gear D. Bevel gear C. 400 D. 340/350
C. Line of symmetry D. Tangent line 79. The breaking strength of oak-tanned beltings 90. As a rule, the center distance between
70. Which of the following is considered varies from 3 to more than: sprockets should not be less than __________
advantageous for bearing materials? A.5 ksi B. 6 ksi times the diameter of the bigger sprocket and
A. Conformability B. Compatibility C. 7 ksi D. 9 ksi not less than 30 times the pitch nor more than
C. Embeddability D. All of these 80. Experience suggests that the most economical about 50 times to pitch.
71. A conclusion repeatedly verified by experiment designs are obtained for a belt speed of: A.1.5 B. 2
is that the smoother surface: A.6000 to 7500 fpm B. 3000 to 5000 fpm C. 2.5 D. 3
A. Has the greater load capacity of the C. 3500 to 4700 fpm D. 5000 to 1000 fpm 91. A single force which produces the same effect
bearing 81. The tension in the belt due to centrifugal force upon a mass as two or several forces acting
B. Has the lesser capacity of the bearing increasing rapidly above about: together is called:
C. Has constant load A.2500 fpm B. 3000 fpm A. Components B. Composition forces
D. None of these C. 35000 fpm D. 4000 fpm C. Resolution forces D. Resultant
72. Which of the following considers the 200 82. For leather belts, recommended speed is: 92. All forces in the same plane are called:
series of bearing? A.6000 to 7000 fpm B. 5000 to 6000 fpm A. Coplanar B. Couple
A. Heavy B. Medium C. 7000 to 8000 fpm D. 4500 to 5600 fpm C. Parallel D. Resultant
C. Light D. All of these 83. The recommended initial tension of the belt is: 93. Which of the following laws which states that
73. Which of the following considers the 300 A.75 lb/in of width B. 73 lb/in of width the force of attraction between two bodies is
series of bearing? C. 71 lb/in of width D. 80 lb/in of width directly proportional to the product of their
A .Medium B. Heavy 84. Two shafts at right angles to each other may be masses and inversely proportional to distance
C. Light D. All of these connected by what arrangement? square between their centers.
74. A type of roller bearing in which the balls are A. Half turn B. Quarter turn A. Hooke’s law B. Law of gravitation
assembled by the eccentric displacement of the C. ¾ turn D. One turn C. Law of motion D. Newton’s law
inner ring. 85. The minimum number of teeth on a smaller 94. Any object thrown upward will return to earth
A. shallow groove ball bearing sprocket for low speed is: with the magnitude of the terminal velocity
B. filling-slot ball bearing A.12 B. 21 equal to:
C. self-aligning ball bearing C. 17 D.14 A. 50% of the initial velocity
D. deep-groove ball bearing B. 80% of the initial velocity
79
 C. About 90% of the initial velocity ranges or minimum aside from carbon and 13. Specification of molybdenum alloy.
D. The initial velocity generally termed: A. SAE3XXX B. SAE4XXX
95. Flat belt that is too tight will induce strain on A. Alloy steel B. AISI steel C. SAE5XXX D. SAE6XXX
the bearing and belt __________. C. Bessemer steel D. SAE steel 14. A_________ chain is an assembly of lines and
A. Life will be shortened 4. Materials is having thermal expansion of about joints.
B. Result to uneconomical operation 10 times higher than those of materials and A. Dynamic B. Kinetic
C. Suffer/shatter has more heat generated during machining is: C. Sprocket D. Static
D. Will be sheared/cut A. Aluminum B. Asbestos 15. The recommended means of supporting the
96. The resulting cross-sectional area of the tensile C. Plastic D. PVC chuck during the mounting procedure to the
test specimen divided by the specimen original 5. To hold to minimum, the axial direction of lathe spindle is to use:
area is called: deflection/movement, a separate thrust A. Crane B. Jack C. Overhead D. Racket
A. Charpy test B. % elongation bearing or preloaded bearing capable of 16. Too much __________ in a flat belt operation
C. Impact test D. Izod test absorbing considerable load is required. The tend to cause excessive wear slippage and may
97. SAE 51XXX belongs to the __________ steel type of bearing to use is a __________ bearing. burn
family. A. Deep grove ball A. load B. Lack C. Usage D. Tightness
A. Carbon B. Chromium B. double row angular contract 17. It is a chromium steel tape in AISI-SAE
C. Manganese D. Nickel C. tapered roller bearing designation.
98. In itself, it is a lubricant and usually one of the D. wide type self-aligning A. 10XX B. 25XX
important elements in casting non-ferrous 6. Pulley made of ________ ordinary is 45 to C.50XX D. 40XX
metals like bronze, for example: 55% less in weight and 2.35 to 2.70% less 18. Which of the following is not recommended
A. Antimony B. Babbit slippage compared with________ pulley. for use in a driving space exceeding
C. Lead D. Zinc A. Iron/steel B. steel/iron 2000ft/min?
99. Gasket material, which should avoid hot C. wood/iron D. wood/steel A. Flat leather belt B. Herringbone gear
liquid/steam applications. 7. To avoid scoring in the bearing surface and the C. Silent sprocket D. V-Belt
A. Asbestos fiber B. Nylon fiber shaft due to __________ 19. It is low cost bearing used worldwide for
C. Rubberized D. Wool contamination/absorption of the fine dirt in automobile or low horse power motor
100. The same material properties all over / the bearing during operation/lubrication the applications. It is made of thin coating of over
direction and at any particular point in a bearing material to apply should have good flat metal strip.
structural member is: lubrication. A. Babbit B. Cadmium brass
A. Heterogenous B. Homogenous A. Anti-scoring B. resistance conformability C. Lead D. Thin
C. Isentropic D. Isotropic C. corrosion resistance D. embed ability 20. The most common useful tools to measure
ELEMENTS 17 8. What do impact tests measure? diameter in machine shop operation but
1. For large speed ratio and large sprocket utilized A. Compactness B. Ductility normally and always used with steel scale for
it is recommended cast ____________ C. Plasticity D. Toughness measurement.
material since the large sprocket teeth are 9. Corresponding piping color for alkaline. A. Caliper B. Micrometer
having fewer engagements. A. Blue B. Green C. Protractor D. Vernier
A. allowed steel B. high treated steel B. C. Red D. Violet 21. In impact force introduce to cause the metal in
C. iron D. malleable iron 10. Type of gear that transmits power at an angle. a shape mold according to the shape to dies
2. Roller bearing is utilized on _________ A. Bevel B. Helix made.
carrying capacity and is better than ball in this C. Herringbone D. Spur A. Hardness B. Spinning
condition. 11. Which of the following gasket material is not C. Swaging D. Toughness
A. Heavy load B. high temperature load used for high temperature? 22. Forces of equal in magnitude but opposite in
C. low load D. reserving load A. Normal Plane B. Plastic Nylon direction are parallel called
3. To enhance mechanical properties, fabrication C. Rubberized D. Wool A. Acceleration B. Coplanar
characteristics or any other attributes of steel, 12. A plane perpendicular to the gear axis. C. Couple D. Non-coplanar
some elements are added in melting in specific A. Asbestos B. Pitch Plane 23. Composition of force is at the____________
C. Plane of Rotation D. Radius of gyration of two or more forces.
80
 A. Combination B. Opposition A. Different B. Helical 46. In a ______ design, the lead of a single thread
C. Resultant D. Summary C. Opposite D. parallel is equal to the pitch.
24. Circular pitch is measured along the 35. Plane of rotation is defined as plane A. bevel gear B. bolt
__________ in the circular gear. perpendicular to a C. helical gear D. hypoid gear
A. Circle B. Line of action A. gear axis B. gear ratio 47. A type of chisel used in cutting of keyways,
C. pitch center D. pitch diameter C. normal plane D. pitch diameter square corners or slots.
25. Stiffness is the materials ability to__________ 36. Cutting lubricant used used in drilling reaming A. Cape B. Diamond head
deformation under stress. and tapping for brass and bronze C. Flat D. Round
A. Non-polar B. planar A. Dry B. Soda water 48. The maximum recommended ideal number
C. resists D. Staffer C. Soluble oil D. Turpentine of teeth to use for bigger sprocket is:
26. The pipe color in steam is: 37. Non-concurrent forces when in action are: A. 120 B. 127
A. Blue B. Gray A. Collinear B. Couple C. 132 D. 143
C. Silver gray D. White C. parallel D scalar 49. The teeth on the outer ring surface is called
27. What method is used the yield point of some 38. The general accepted limit of diamond wheel the external gear:
brittle materials? speed should be in the range of ________ A. Develop B. Flank
A. Offset ratio B. modulus of resilience fpm. C. Gear D. Involute
C. modulus measurement D. parallelogram A. 1000/2000 B. 2500/3500 50. A bolt general application that posses a
method C. 3000/4000 D. 5000/6000 stronger thread is a type of _____ screw.
28. Wood pattern in the foundry is normally 39. Prepared tool bit will now consist of face , nose A. BUN B. UNC
constructed out of: and C. UNEF D. WOOD
A. Dried sap wood B. hard wood A. Cutting tool B. shank 51. Maximum moment formula for beam simply
C. kiln dried wood D. scrap wood C sharp tool D tool edge supported at both and subject to a load
29. The progressive change in position of 40. This is an alloy in bronze casting that assist uniformly disturbed over its length.
is called motion. lubrication and in itself a lubricant: A. wL/2 B. wL/8
A. Component B. couple A. Lead B. manganese C. wL/8 D. wL/12
C. link D. mass C phosphate D .tin 52. Special bearing used with high deflection.
30. Strain or ________ is a change in geometry / 41. For longer sprocket chain life the speed range A. Babbitt B. ball
shape of the body due to action of a force on of_______ fpm is recommended. C. Roller D. Self aligning
it. A. 92xx B. 300xx C. 304xx D. 515xx 53. For low load and less experience production.
A. Bending Stress B. Deformation 42. All stainless type is SAE designation except: A. Babbitt B. ball
C. Shear stress D. stress A. 92XX B. 300XX C. Roller D. Self aligning
31. The effective face width of a helical gear C. 304XX D. 515XX 54. The lateral stain in axial tension members can
divided by the axial pitch. This sometimes 43. It is white metal with good oxidation and be calculated by
called face overlap. corrosion resistance. This has also electrical A. Deformation B. Hooke’s law
A. Angle overlap B. Axial overlap magnetic properties. C. Poisson’s ratio D. William’s law
C. Contact overlap D. Helical overlap A. Aluminum B. Copper 55. The most abundant being used in automobiles
32. For mass production of casting it is generally C. Nickel D. Titanium worldwide is coated with_______ on top of
chapter to use:______ longer life. 44. It is molybdenum steel – tape in AISI_SAE the plate.
A. Gear axis B. normal plane C. designation A. Babbitt B. lead C. manganese D. tin
contact overlap D. pitch diameter A. 44XX B. 45XX 56. A liquid metal at room temperature.
33. It is a place between mating teeth or the C. 50XX D. 51XX A. Aluminum B. mercury
amount of which a tooth space exceed the 45. Cutting lubricant used used in drilling reaming C. Zinc D. Zirconium
thickness of an engaging tooth is called: and tapping for brass and bronze 57. Steel with SAE specification 13XX.
A. Backlash B. Clearance A. Dry B. Soda water A. Chromium B. Manganese
C. Pitting D. Space C. Soluble oil D. C. Molybdenum D. Nickel
34. The forces that be combined or called Turpentine 58. Property, which enables a material to be drawn
component forces. into a wire.
81
 A. Ductility B. Elasticity A. Allowance B. Clearance 80. The kinematic chain in which one link is
C. Plasticity D. Utility C. Limits D. Tolerance considered fixed for the purpose of analysis but
59. Heating a metal to a temperature above the 69. Forces that meet at common point is called: motion is possible in other links.
critical temperature and from cooling slowly A. Co-linear B. concurrent A. Belting B. Frame
usually done in the furnace to reduce the C. coplanar D. couple C. Mechanism D. Sprocket chain
hardness and improve the machinability is a 70. A pair of equal and opposite (not collinear) 81. The ____ is one of the rigid members / bodies
process called forces that tend to cause a rotation of a body. joined together to form a kinetic chain.
A. Annealing B. Normalizing A. Centroids B. Couple A. Coplanar B. Frame
C. quenching D. tempering C. Equilibrium D. Vector C. Link D. Machine
60. The stress that causes the material to shorten: 71. Stress that resist being pulled apart. 82. For large speed ratio and large sprocket utilized
A. Bearing B. Compressive A. Compressive B. Shear it is recommended cast _______ material since
C. Shear D. tensile C. Tensile D. Torsional the large sprocket teeth are having fewer
61. The most common lubricants being utilized in 72. Dynamic seal is also known as: engagements.
whatever category of load and speed are oil, A. Gasket B. packing A. Alloyed steel B. heat treated steel
grease and dry lubricants like C. seal D. shield C. Iron D. Malleable iron
A. Bronze B. Graphite 73. Acceleration is proportional to the force. 83. Roller bearing is utilized on______ carrying
C. Lead D. Silicon A. Hooke’s law B. Law of gravitation capacity and is better than ball in this
62. Commonly used in parallel shaft transmission C. Law of motion D. Newton’s law condition.
especially when a smooth continuous action is 74. Which type of hardening will work to some A. Heavy load B high temperature load
essential as in high speed drives up to 12,000 extent in all metals? C. low load D. reversing load
fpm. A. Annealing B. Austenitizing 84. To enhance mechanical properties, fabrication
A. Bevel gear B. Helical gear C. Martempering D. Work hardening characteristics or any other attributes of steel,
C. Herringbone gear D. Spur gear 75. Sound travel fastest in : some elements are added in melting in specific
63. The reciprocal of a diametral pitch or the ratio A. Air at 00 F and 1 atmosphere ranges or minimum aside from carbon and
of the pitch diameter to the number of teeth. B. Air at 700 F and 1 atmosphere generally termed:
A. Clearance B. Involute C. Air at 700 F and 0 lbf/ in2 A. Alloy steel B. AISI steel
C. Lead D. Module D. steel at 700 F C. Bessemer steel D. SAE steel
64. What tool will be used in making wood 76. The yield strength of common yellow brass ( 85. Materials is having thermal expansion of about
pattern in the foundry shop? 70%Cu, 30%Zn) can be increased by: 10 times higher than those of materials and
A. Band saw B. Drill machine A. Annealing B. chill casting has more heat generated during machining is:
C. Hammer D. Saw and chisel C. cold working D. heat treatment A. Aluminum B. Asbestos
65. Type of bolt commonly used in the 77. Forces not on the same place is called______ C. Plastic D. PVC
construction that is threaded in both ends. A. Component B. Composition of forces 86. To hold to minimum, the axial direction of
A. Acme threaded bolts B. Hex bolt C. Non-coplanar D. Resolution deflection/movement, a separate thrust
C. Hardness d. Stud bolt 78. The distance between the center of oscillation bearing or preloaded bearing capable of
66. Ability of a material to absorb strain energy and the point of suspension is called: absorbing considerable load is required. The
and will return to its original state. A. Fix axis type of bearing to use is a _______ bearing.
A. Creep B. Fatigue strength B. Center of gravity A. Deep grove ball
C. Hardness D. Resilience C. Center of percussion B. double row angular contract
67. The ratio of lateral strain to longitudinal D. Radius of oscillation C. tapered roller bearing
strain. 79. If the velocity is variable and D. wide type self-aligning
A. Deformation B. Modulus of regularly/constantly increasing the rate of 87. Pulley made of ______ ordinary is 45 to 55%
elasticity C. Poisson’s ratio change is called: less in weight and 2.35 to 2.70% less slippage
D. William’s line A. Acceleration B. Constant work compared with _______ pulley.
68. Basic size is the same as design size if there is C. Moment D. Motion A. Iron/steel B. steel/iron
no: C. wood/iron D. wood/steel
88. A plane perpendicular to the gear axis.
82
 A. Normal plane B. Pitch plane 99. What type of fits used for involute spline? 7. A conclusion repeatedly verified by experiment
C. Plane of rotation d. Radius of gyration A. Close fit B. press fit is that the smoother surface:
89. The minimum value of numerical combined C. sliding fit D. all of these A. has the greater load capacity of the
shocks and fatigue factor to be applied in every 100. It is used for permanent fits and similar to bearing
case to the computed bending moment of the involute splines except that the pressure angle B. has the lesser capacity of the bearing
shaft is: is 14.50. C. has constant load
A. 2.0 B.1.75 A. Separation load B. spline shaft D. none of these
C. 1.5 D. 1.3 C. stub serration D. involute serration 8. Which of the following considers the 200
90. What is the other name given to short shafts ELEMENTS 18 series of bearing?
on machines? 1. Which of the following has been considered as A. heavy
A. Spindles B. head shafts general purpose rope? B. medium
C. core shafts D. all of these A. 6 x 19 IWRC C. light
91. The other given to a line shaft is: B. 7 x 25 IWRC D. all of these
A. Countershafts B. main shaft C. 7 x 25 IWRC 9. Which of the following considers the 300
C. long shaft D. head shafts D. 6 x 9 IWRC series of bearing?
92. The speed at which the center of mass will be 2. What is the maximum shaft angle for a single A. heavy
equal the deflecting forces on the shafts; shaft Hooke’s coupling? B. medium
with its attached bodies will then vibrate A. 10 C. light
violently, since the centrifugal forces changes B. 17 D. all of these
its direction as the shaft turns in: C. 15 10. A type of roller bearing in which the balls are
A. Nominal speed B. critical speed D. 20 assembled by the eccentric displacement of the
C. relative speed D. mean speed 3. What are the two principal parts of a Journal inner ring.
93. An old rule of thumb for transmission shafting Bearing? A. shallow grove ball bearing
is that the deflection should not exceed ____ A. bearing and journal B. filling-slot ball bearing
of length between supports. B. shaft and babbit C. self-aligning ball bearing
A. 0.01 in. per foot B. 0.08 in. per foot C. clearance and fitted D. deep-grove ball bearing
C. 0.02 in. per foot D. 0.05 in. per foot D. shaft and cylinder 11. Which of the following is not a type of ball
94. For transmission shaft the allowable deflection 4. When the line of action of the load, bisects the bearing?
is 1 degree in a large of _____ diameters. arc of partial bearing, the bearing is said to be? A. shallow grove ball bearing
A. 20 B. 25 C. 30 D. 40 A. eccentrically loaded B. filling-slot ball bearing
95. What is the limiting torsional deflection for B. fully loaded C. self-aligning ball bearing
machinery shafts, if the criteria of limiting C. centrally loaded D. deep-grove ball bearing
torsional deflection vary from 0.08% per foot D. partially loaded 12. Which of the following is the approximate
of length? 5. When radii of both the bearing and the density of the leather belt?
A. 10 B. 2.50 C. 20 D. 3.50 journal are the same, then the bearing is said A. 0.035
96. Bevel gear with size 5 in. to 15 in should not to be: B. 0.0135
be lift or depress more than____, as Gleason A. fitted bearing C. 0.025
statement. B. clearance bearing D. 0.0465
A. 0.004 B. 0.003 C. 0.002 D. 0.001 C. full bearing 13. Which of the following is the approximate
97. What type of key that allows the hub to move D. ambiguous bearing density of a fat rubber belt?
along the shaft but prevents the rotation of the 6. Which of the following cannot be a possion’s A. 0.055
shaft? ratio of a material B. 0.0135
A. Woodruff Key B. Feather Key A. 0.35 C. 0.045
C. Gibbs Key D. Square Key B. 0.40 D. 0.0465
98. What is the other name for Kennedy Key: C. 0.75 14. A toothed wheel whose tooth elements are
A. Tangential key B. woodruff key D. 0 straight and parallel to the shaft axis or used to
C. saddle key D. roll pin
83
 transmit motion and power between parallel 22. A statement of how the total moment is C. low speed
shafts. derived from a number of forces acting 30. A fine finishing operation, similar to polishing,
A. helical gear simultaneously at a point. is using a very fine polishing compound.
B. spur gear A. Goodman’s theorem Burnishing
C. worm gear B. Soderberg’s theorem A. Buffing
D. bevel gear C. Varignon’s theorem B. Calorizing
15. The breaking strength of oak-tanned belting D. Moore’s theorem C. Electroplating
varies from 3 or more than: 23. A simple mechanical machine with the ability 31. A process in which metal is dipped in dilutes
A. 5 to increase an applied force. acid solutions to remove dirt, grease, and
B. 6 A. Hinges oxides.
C. 7 B. Roller A. Pickling
D. 9 C. Lever B. Sheradizing
16. Experience suggests that the most economical D. Spring C. Polishing
designs are obtained for a belt speed of: 24. Any device used to raise or lower an object. D. Pakerizing
A. 6000 to 7500 A. Hoist 32. Which of the following is used to change the
B. 3000 to 5000 B. Spring direction of an applied tensile force?
C. 3500 to 4700 C. Lever A. Gears
D. 5000 to 1000 D. Roller B. Flywheels
17. The tension in the belt due to centrifugal force 25. A measure of the material’s ability to yield and C. Pulleys
increasing rapidly above about: absorb highly localized and rapidly applied D. Ropes
A. 2500 stresses. 33. For most wire ropes and chains with 180
B. 3000 A. Hardness contact, the loss factor at low speed varies
C. 3500 B. Stiffness between:
D. 4000 C. Toughness A. 1.03 to 1.06
18. For leather belts recommended speed is? D. Resilience B. 1.20 to1.50
A. 6000 to 7000 26. A material can fail after repeated loadings even C. 1.07 to 1.10
B. 5000 to 6000 if the stress level never exceeds the ultimate D. 1.60 to 1.80
C. 7000 to 8000 strength. 34. What method to determine the reactions on
D. 4500 to 5600 A. Fatigue failure continuous beams?
19. For fabric belts, recommended speed is: B. Ductile failure A. two-moment equations
A. 4000 to 5000 C. Brittle failure B. three-moment equations
B. 3000 to 4000 D. Mechanical failure C. second moment equations
C. 2000 to 3000 27. The load at which a column fails is known as: D. third moment equations
D. 2000 and more A. Dead load 35. What is the best method for increasing a
20. The recommended initial tension of the belt is: B. Critical load spring’s fatigue life?
A. 75 C. Moving load A. Sprickling
B. 73 D. Dynamic load B. Stress relieving
C. 71 28. The percentage difference of solid and working C. Shot peening
D. 80 deflections is known as: D. Shot relieving
21. Two shafts at right angles to each other may be A. Cash allowance 36. The distance from a point on one gear to the
connected by what arrangement? B. Spring rate corresponding point measured along the base
A. Half turn C. Spring allowance circle.
B. Quarter turn D. Spring index A. Diametral pitch
C. turn 29. A shaft’s natural frequency of vibration is B. Normal pitch
D. One turn referred to as the: normal speed C. Circular pitch
A. high speed D. Chordal pitch
B. critical speed
84
37. Which of the following is a single measure that 44. A swinging support constructed as part of the 51. Which of the following is the most dominant
combines the external dynamic load of an vessel and that supports the man way cover cause (approximately 80%) of machine
application with a gear drive’s reliability and when it is unbolted and moved aside. failures?
operating life? A. Nozzles A. Torsion
A. ratio factor B. Handholes B. Negligence
B. reliability factor C. Davit C. Fatigue failures
C. service factor D. Orifice D. Compression
D. life factor 45. Which of the following is the measure of 52. Wrought steel in its commonly met
38. Describes very rough grinding, such as that torsional stress? commercial, it is often assumed that the
performed in foundries to remove gates, fins, A. accuracy average endurance for an average Su (50%
and risers from casting. B. stiffness survival) the Brinell hardness is limited to:
A. Snagging C. rigidity A. 500
B. Lapping D. quality B. 400
C. Honing 46. When tested in compression, ductile materials C. 240
D. Snuggling usually exhibit _____ characteristics up to the D. 450
39. A fine grinding operation used to obtain exact yield strength as they do when tested in 53. What is the range of the endurance ratio or
fit and dimensional accuracy. tension. Czaud votes values for steel?
A. Honing A. the same A. 0.23 to 0.65
B. Lapping B. more than B. 0.34 to 0.87
C. Buffing C. more than C. 0.63 to 0.93
D. Burnishing D. approximately the same D. 0.34 to 0.45
40. The process of separating different sizes of the 47. A tolerance where the size of a part is 54. Which of the following indicates the degree of
same material. permitted to be either larger or smaller than concentration?
A. Screening the given dimension. A. Power factor
B. Sieving A. Bilateral B. Service factor
C. Separation B. unilateral C. Stress factor
D. Fractioning C. lateral D. Stress concentration factor
41. The process of separating a material into a D. None of these 55. The internal stresses that exist in any part of
variety of specifically sized groups. 48. A fit generally used on those dimensions the material that is subjected to temperature
A. Centrifuging involved in such as pin in a hole. and not acted upon by an external load.
B. Sieving A. Unilateral A. Residual stress
C. Fractioning B. Lateral B. Form stress
D. Screening C. Bilateral C. Superposed stress
42. An interrupted quenching process resulting in D. None of these D. Control stress
an austenite-to-banite transition. 49. It is relatively finely spaced irregularities of the 56. It is the process that cold works a limited
A. Austempering surface. amount of material, thus giving a higher
B. Martempering A. Smoothness strength, and it leaves a surface compressive
C. Austenitizing B. Waviness stress.
D. Martenitizing C. Lay A. Surface finishing
43. The material will become progressively D. Roughness B. Tensioning
stronger, harder, and more brittle until it 50. It is the surface finish of heavy cuts or coarse C. Surfacing
eventually fails. feed. D. Surface rolling
A. Hot working A. 200rms 57. Fatigue strength is increased by repeated loads
B. Tempering B. 400rms just below the normal fatigue limit, followed by
C. Cold working C. 80rms small step by step increase of the loading.
D. Normalizing D. 500 or greater rms A. Coaxing
B. Triaxing
85
 C. Mixing amount of compression as ______ for a certain C. Ultimate stress/Proportional Limit
D. Relieving cork gasket. D. Yield point/Proportional Limit
58. It is the diameter of the imaginary cylinder that A. 62% 73. Under theories of failure, the value of shear
bounds the crest of an external thread and the B. 86% stress is how many times that of the tensile
roots of an internal thread. C. 68% stress?
A. Mean diameter D. 76% A. Four times
B. Root diameter 66. It is a screw fastening with a nut on it. B. Half
C. Stress diameter A. Bolt C. Double
D. Major diameter B. U-bolt D. One-fourth
59. It is the distance in inches a screw thread ( a C. Rivet 74. The theory of mechanics of material shows
helix) advances axially in one turn D. Screw that the result from the octahedral shear stress
A. Pitch 67. A fastening which has no nut and turns in to a theory and those from the maximum
B. Mean pitch threaded hole. distortion-energy theory are:
C. Lead A. Bolt A. the same
D. Circular pitch B. Fastener B. less than
60. Which of the following bolts is recommended C. Rivet C. more than
for general use? D. Screw D. not related
A. UNC 68. An old name for an unfinished through bolt 75. It is the distance measure auxiliary from a
B. UNEF comes with square. point on one thread to the corresponding
C. UNF A. Coupling bolt point on an adjacent thread.
D. NC B. Stud bolt A. Axial pitch
61. It is frequently used bolt in automotive and C. Machine bolt B. Z-pitch
aircraft industries. D. Automobile bolt C. Lead
A. UNC 69. It is a type of coil where the helical coil is D. Lead angle
B. UNEF wrapped into a circle forming an annular ring. 76. It is the angle between a tangent to the pitch
C. UNF A. Volute spring helix and plane normal to the axis of the screw.
D. NC B. Hairspring A. Helix angle
62. Which of the following is particular bolt used C. Motor spring B. Lead angle
in aeronautical equipment? D. Garter spring C. Tangential angle
A. UNC 70. It is a type of spring where thin flat strip D. Vertical angle
B. UNEF wound up on itself as a plane spiral, usually 77. It is suggested that the design factor on the
C. UNF anchored at the inside end. yield strength be about 1.5 for the smooth
D. NC A. Motor spring load, about 2 to 2.25 for minor shock loading,
63. What type of bolt usually used for high- B. Garter spring and up to _____ for sever shock loads,
pressure pipe flanges, cylinder head studs etc? C. Volute spring especially when the loading reverses during
A. UNC D. Helical spring operation.
B. UNF 71. The ratio of the length of the column and the A. 4.5
C. UNEF radius of gyration of the cross-sectional area B. 3.5
D. 8 UN about a centroidal axis. C. 3.0
64. It is the stress or load induced by the A. Contact ratio D. 4.0
tightening operation. B. Slenderness ratio 78. A typical hub length fall between:
A. Initial stress C. Centroidal ratio A. 1.25D to 2.5D
B. Initial tension D. Column ratio B. 1.3D to 3.4D
C. Residual stress 72. Under the theories of failure, for static loading C. 1.25D to 4.0D
D. None of these of ductile material, the design stress is: D. D to 7.0D
65. For non-metallic gaskets, it has been found A. Yield Stress/Factor of Safety 79. A key that are square or flat and tapered with
that they should have a certain minimum B. Ultimate stress/Factor of Safety head
86
 A. Pin keys A. Even clearance 94. The recommended net belt pull for rubber belt
B. Gib-head keys B. Clearance ratio is:
C. Saddle keys C. Fit clearance A. 11.34lb/ply per inch of width
D. None of these D. Radial clearance B. 13.75lb/ply per inch of width
80. A key that may either straight of tapered. It is 87. A bearing in which the radii of the journal and C. 16.35lb/ply per inch of width
usually a drive fit. the bearing are the same. D. 20.34lb/ply per inch of width
A. Pin keys A. Fitted bearing 95. For minimum quietness, use sprockets with
B. Gib-head keys B. Full bearing _____ or more teeth.
C. Saddle keys C. Partial bearing A. 21
D. None of these D. Clearance bearing B. 23
81. A key with one several patented methods of 88. What is the approximate length-to-diameter C. 25
keying is driven or pressed into a hole that is ratio of hydrodynamic bearings? D. 27
small enough to close the slit, assembled in A. 1 96. If two intersecting shafts are to be belt
radial direction. B. 4 connected _____ guide pulleys are to be used.
A. Fit key C. 3 A. 1
B. Roll pin D. 2 B. 2
C. Saddle key 89. The operating temperature of oil films in the C. 3
D. Pin key bearing must approximately: D. 4
82. A key that allows the hub to move along the A. 1400F to 1500F 97. Wire ropes are made from cold-drawn with
shaft but prevents the rotation of the shaft. B. 1400F to 1600F _____ or more teeth.
A. Woodruff key C. 1200F to 1900F A. 21
B. Gibs key D. 1200F to 1900F B. 23
C. Feather key 90. At the higher temperatures, oil oxidizes more C. 25
D. Square key rapidly above: D. 27
83. For involute spline, the type of fits used: A. 1200F 98. A wire rope that the wires and strands are
A. Close fit B. 2000F twisted in the opposite direction.
B. Sliding fit C. 1400F A. Long lay
C. Press fit D. 1600F B. Perform
D. All of these 91. For thrust bearing, the special at moderate C. Regular lay
84. A coupling that transmits power via the operating condition is: D. Lang lay
frictional forces induced by pulling the flange A. 50<Vm>200fpm 99. A wire rope that the wires and strand are
toward each other over slotted tapered sleeves. B. 50<Vm>250fpm twisted in the same direction.
A. Flange coupling C. 50<Vm>220>fpm A. Long lay
B. Ribbed compression coupling D. 50<Vm>250fpm B. Perform
C. Rigid coupling 92. If the ends are joined by wire lacing with C. Regular lay
D. Flanged compression coupling machine, the usual efficiency of joint is: D. Lang lay
85. A coupling used for absorbing some shock and A. 100% 100. Which of the following ropes is used for
vibration that may appear on one shaft and of B. 75% haulage, rigging, and guard rails?
preventing the occurrence of reversed stresses C. 85% A. 6 x 35 IWRC
caused by the shaft deflecting at the coupling D. 88% B. 6 x 15 IWRC
preventing at the coupling. 93. On high speed centrifugal blowers, it has been C. 7 x 8 IWRC
A. Rigid coupling observed that the arc of contact is reduced D. 7 x 7 IWRC
B. Flange coupling from 1800 at rest to _____ in motion.
C. Flexible coupling A. 1000
ELEMENTS 19
D. None of these B. 900 1. Which of the following ropes is used for lines,
86. It is the difference in the radii of the bearing C. 950 hawsers, overhead cranes, and hoist?
and the journal. D. 1100 A. 6 x 37 IWRC

87
 B. 6 x 35 IWRC C. resistance brake B. 0.002
C. 6 x 25 IWRC D. centrifugal brake C. 0.03-0.05
D.7 x 26 IWRC 9. a kind of braking system such that if the band D.0.01-0.03
2. The regular materials for wire ropes are made wraps partly around the brake drum and the 16. The part of machine that absorbs the energy
of? braking action is obtained by pulling the band delivered by a sharp force or blow.
A. chromium tight into the wheel. A. spring
B. wrought iron A. block brake B. anvil
C. cast steel B. clutch C. brakes
D. high-carbon iron C. band brake D.flywheel
3. What is the minimum suggested design factor D.centrifugal brake 17. It is the friction of wheel inclination from the
of wire ropes for miscellaneous hoisting 10. Which of the following clutches that has a vertical position.
equipment is? disadvantage of heavier rotating masses? A. camber
A. 2 A. multiple disc clutch B. toe-in
B. 3 B. cone clutch C. caster
C. 5 C. disc clutch D.king pin inclination
D.4 D.tin clutching 18. Which of the following is a machine which
4. To avoid excessive wear rate the recommended 11. Which of the following welds have been takes large quantities of raw or finished
limiting pressure for 6 x 19 ropes is considered as resistance weld which is usually materials and binds them with a rope or metal
___________for cast steel. round in the same dorm as the electrodes that straps or wires into a large package?
A. 700 psi press the sheet together? A. bacher
B. 900 psi A. edge joints B. bending machine
C. 1000 psi B. spot welds C. baler
D.1200 psi C. CIG welds D.automatic screw machine
5. 5. To avoid excessive wear rate the D.TIG welds 19. It is the grasping of an outside work piece in a
recommended limiting pressure for 6 x 19 12. A welding which consist of short lengths ( 2-3 chunk or a jawed device in a lathe.
ropes is ___________for manganese cast steel. long ) of welds with space between as 6 inches A. clucking
A. 2500 psi on centers. B. clamping
B. 2000 psi A. intermittent weld C. chucking
C. 3000 psi B. spot weld D.clam shelling
D.2300 psi C. MIG weld 20. Which of the following is a mechanical linkage
6. What friction device that are used to connect D.TIG weld or mechanism that can turn about a center or
shafts? 13. A welding operation that use hot flame and rotation?
A. clutches metal rod. A. oscillation
B. spring A. gas welding B. crank
C. brakes B. arc welding C. coupler
D.holders C. resistance welding D.drag link
7. The total frictional energy that is stored in the D.automatic welding 21. What type of compound screw which produces
brake parts principally in the drum or disk is 14. The arc is covered with a welding composition a motion equal to the difference in motion
approximately? and bare electrode wire is fed automatically. between the two component screws?
A. 56% up A. resistance welding A. machine screw
B. 90% up B. induction welding B. tanden screw
C. 86% up C. submerged welding C. differential screw
D.75% up D.spot welding D.variable screw
8. The brake capacity to absorb energy is known 15. What is the recommended coefficient of 22. Which of the following bolts provided with a
as? fluctuation pf flywheels for punching, shearing, hole at one end instead of usual head?
A. energy pressing machine is? A. stud bolt
B. power A. 0.005-0.1 B. eye bolt
88
 C. machine bolt C. head suction 35. Which of the following are true statements
D.stove bolt D.none of these about the modulus of elasticity, E?
23. What operation generally carried out to divide 30. If the faced-centered cubic lattice is compared A. it is the same as the rupture modulus
the parent coiled sheet into narrow coils? with the hexagonal closed-packed lattice, which B. it is the slope of the stress-strain diagram in
A. slotting of the following features describes the the linearly elastic region
B. squeezing hexagonal closed-packed structure only? C. it is the ratio of stress to volumetric strain
C. squaring A. it has the closest packed lattice structure D.its value depends only on the temperature of
D.slitting B. its coordination number is 2 the material
24. It is the process used to form shallow, round, C. its deformation properties are more 36. In general, what are the effects of cold-working
raised recessed troughs of uniform width in a directional a metal?
straight curved or circular form. D.its stacking order is reversed A. increase strength and ductility
A. hemming 31. In molecules of the same composition, what B. decrease strength and ductility
B. beading are variations of atomic arrangements known C. increased strength, decreased
C. embossing as? D.decreased strength, increased ductility
D.buldging A. polymers 37. Which of the following does cold-working
25. The process of removing excess metal from the B. monomers cause?
edge of a strip to make it suitable for drawing C. isomers A. elongation of grains in the flow direction,
without wrinkling or to obtain final D.crystal system an increase in dislocation density, and over all
complicated shape which was not directly 32. Which of the following statements is not true increase in energy of the metal
possible by blanking. regarding X-ray diffraction? B. elongation of grains in the flow direction, a
A. lancing A. the geometrical structure factor F(h, k, l) is decrease in dislocation density, over all
B. slugging the ratio of the amplitude of the X-ray decrease in energy of the metal
C. notching B. reflected from a plane in a crystal to the C. elongation of grains in the flow direction, a
D.trimming amplitude of the X-ray scattered from a single decrease in dislocation density, and over all
26. Which of the following is the process of electron increase in energy of the metal
removing course scratches or toll marks? C. X-ray diffraction is only useful for studying D.shortening of grains in the flow direction, a
A. polishing simpler crystal such as the body centered decrease in dislocation density, over all
B. buffing cubic structure rather than more complex decrease in energy of the metal
C. honing crystals like the hexagonal closed packed 38. Which of the following statement is false?
D.lapping structure A. the amount or percentage of cold work
27. Which of the following ropes is galvanized and D.X-ray diffraction can be used to determine cannot be obtained from information about
consists of 6 strands, 7 wires each and a hemp the gain size of a specimen change in the area of thickness of a metal
core? 33. Which of the following describes diffusion in a B. the process of applying force to metal at
A. reverse lay rope crystal structure? temperature below the temperature of
B. guy rope A. it is not possible crystallization in order to plastically deform the
C. lang lay rope B. it occurs only in alloys, never in pure crystals metal is called cold-working
D.regular rope C. it often uses an exchange or vacancy C. annealing eliminates most of the defects
28. It is a large lathe used for turning and boring mechanism caused by the cold working of a metal
cannons. D.it occurs primarily as a result of mechanical D.annealing reduces the hardness of a metal
A. gun lathe work 39. Which of the following statement is false?
B. engine lathe 34. Which of the following does not produce A. there is considerable increase in the
C. cannon lathe vacancies interstitial defects, or impurity hardness and the strength of a cold-worked
D.turret lathe defects in a material? metal
29. What device on the lathe machine used for A. plastic deformation B. cold-working a metal significantly reduces its
carrying the revolving spindle? B. quenching ductility
A. head stock C. slow equilibrium cooling C. cold-working causes a slight decrease in the
B. header D.irradiation with high energy particles density and electrical conductivity of a metal
89
 D.cold work decreases the yield point as well B. aggregate gradation A. Gasket
as the strength and hardness of the metal C. water-cement ratio B. Packing
40. Which of the following correctly describes D.absolute volume of cement C. Seal
atoms located at grain boundaries? 47. According to the ACI code, the modular ratio, D. Shield
A. they are subjected to the same type of inter n, of structural concrete with a 55. Past ME Board Question
atomic forces that are presented in the interior 28—day ultimate compressive strength, for, of The material for engine radiation is usually
atoms of the crystals 3000 is nearest to: made of:
B. they are located primarily in highly strained A. 7 B. 9 C. 8 D. 10 A. Admiralty brass
and distorted positions 48. What are valence electrons? B. Navy brass
C. they have a higher free energy than atoms in A. the outer shell electrons C. Silicon brass
the undisturbed part of the crystal lattice B. electrons with positive charge D. Yellow brass
D.all of the above C. the electrons of the complete quantum 56. Past ME Board Question
41. For a completely corrosion-resistant stainless shells Mirror finish has surfaces fitness of
steel, what minimum percentage of chromium D.the K-quantum shell electrons __________ rms.
in the alloy is required? 49. Which of this not a viscoelastic material? A. 1 B.1 to 3 C. 2 to 5 D. 2 to 8
A. 1.1% B. 8.3% C. 3.2% D. 11% A. Plastic B. rubber C. metal D. glass 57. Past Me Board Question
42. Modulus of resilience is? 50. Which of the following statements is false? Non- metallic material of high melting
A. the same as the modulus of elasticity A. Both copper and aluminum have a face- temperature being used as furnace lining is
B. a measure of a materials ability to store centered crystal structure. called:
strain energy B. Both magnesium and zinc have a hexagonal A. Dolomite clay bricks
C. the reciprocal of the modulus of elasticity close-packed crystal structure B. Quartz bricks
D.a measure of the deflection of a member C. Iron can have either a face-centered or a C. Refractories
43. When a metal is cold worked all of the body centered cubic crystal structure. D. Silica sand
following generally occur EXCEPT: D. Both lead and cadmium have a 58. Past ME Board Question
A. Recystallization temperature decrease. hexagonal close-packed crystal structure. In greater quantity, this element is harmful to
B. Ductility decreases 51. Past ME Board Question the molten ferrous metal.
C. Grains become equi-axed Cutting lubricant used in drilling reaming, and A. Aluminum B. oxides C. silicon D. sulfur
D.Tensile strength increases tapping for brass and bronze. 59. Past ME Board Question
44. Which of the following affects most of the A. Dry What is the SAE specification number of
electrical and thermal properties of materials? B. Soda water molybdenum?
A. the atomic weight expressed in grams per C. Soluble oil A. SAE 2XXX
gram atom D.Turpentine B. SAE 3XXX
B. the electrons, particularly the outermost 52. Past ME Board Question C. SAE 4XXX
ones Type of bolt commonly used in the D. SAE 5XXX
C. the magnitude of electrical charge of the construction that is threaded in both ends. 60. Past ME Board Question
protons A. Acme threaded bolts Which of the following is not a structural class of
D.the weight of the atoms B. Hex bolt steel?
45. Which of the following is not a method of C. Square threaded A. high carbon
non-destructive testing of steel casting and D. Stud bolt B. high speed steel
forgings? 53. Past ME Board Question C. low carbon
A. radiography Forces that meet a common point are called: D. tool and die
B. ultrasonic A. Co-linear 61. Past ME Board Question
C. magnetic particle B. Concurrent A furnace used in melting non-ferrous metals called.
D. chemical analysis C. Coplanar A. crucible furnace
46. Compressive strength of fully cured concrete is D. Couple B. cupola furnace
most directly related to: 54. Past ME Board Question C. induction furnace
A. sand-gravel Dynamic seals are also known as D. tempering furnace
90
62. Past ME Board Question 69. Past ME Board Question 76. Past ME Board Question
Which of the following elements when large Which one is different from the remaining? It is one in which specimen, supported at both ends
quantity is harmful to the ferrous metal? A. cyaniding as a simple beam, and is broken by the impact
A. aluminum B. electroplating strength of the metal.
B. silicon C. flame hardening A. charpy test
C. sulphur D. nitriding B. izod test
D. zinc 70. Past ME Board Question C. Rockwell test
63. Past ME Board Question An engineer’s hammer is made of: D. universal test
SAE metal that responds to heat treatment: A. cast iron 77. Past ME Board Question
A. SAE 1117 B. B forged steel An operation to make smaller hole in exact center
B. SAE 1060 C. high speed steel for lathe center
C. SAE 1030 D. mild steel A. broaching
D. SAE 1020 71. Past ME Board Question B. central drilling
64. Past ME Board Question Ductile fracture is characterized by: C. counter boring
An iron in which most of the carbon is chemically A. appreciable plastic deformation prior to D. reaming
combined with the iron called: propagation of crack 78. Past ME Board Question
A. cast iron B. fragmentation into more than two pieces It is a process of cleaning the face of grinding wheel
B. gray iron C. negligible deformation by means of a dresser for removing the glazing and
C. malleable iron D. rapid rate for crack propagation loading of wheel and to improve the cutting action
D. white iron 72. Past ME Board Question of a wheel.
65. Past ME Board Question A scriber is made of: A. dressing
Material, usually ceramics employed where A. carbon steel B. lapping
resistance to very high temperature is required as for B. cold rolled steel C. polishing
furnace linings and metal melting pots called: C. hot rolled steel D. truing
A. bricks D. tool steel 79. Past ME Board Question
B. clay 73. Past ME Board Question A ____________ consist of a slide and a swivel vise
C. insulator Knurling is done to: mounted on the compound rest in place of the toll
D. refractories A. polish material post.
66. Past ME Board Question B. roughen material A. grinding attachment
Polyesters belong to the group of: C. sharpen the material B. milling attachment
A. phenolics D. smooth material C. reaming attachment
B. Teflon 74. Past ME Board Question D. relieving attachment
C. thermoplastic plastics Non-metallic materials of high melting temperature 80. Past ME Board Question
D. thermosetting plastics used in the construction of furnaces, crucibles and The distance between the crest and the base of the
67. Past ME Board Question so forth are called: thread measured perpendicular to the axis.
The process commonly used over thermo plastic A. ceramics A. axis of thread
material is: B. grate B. depth of engagement
A. cold forming C. insulators C. depth of thread
B. dies casting D. refractories D. length of engagement
C. injection molding 75. Past ME Board Question 81. Past ME Board Question
D. shell molding It is a process by which a hot plastic metal is made Name of mechanism, which a welding operator
68. Past ME Board Question to flow into dies by the application of sudden blows holds during gas welding and at the end of which
The hardness of steel increase if it contains: to the material. the gases are burned to perform the various gas
A. austenite A. drop forging welding operation.
B. copper B. extrusion A. hose
C. pearlite C. machine forging B. gage
D. martensite D. press forging C. switch
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 D. torch D. mild steel 95. compressive strength of fully cured concrete is
82. Past ME Board Question 89. Past ME Board Question most directly related to:
A hand tool used to measure engine crank web A twist drill is specified by A. sand-gravel
deflection. A. its diameter and lip angle B. aggregate gradation
A. compound gage B. it shank and diameter C. water-cement ratio
B. dial gage C. shank, material and diameter D. absolute volume of cement
C. distortion gage D. shank, material and flute size 96. According to the ACI code, the modular ratio,
D. feeler gage 90. Past ME Board Question n, of structural concrete with a 28- day ultimate
83. Past ME Board Question Select the one that is gear finishing process. compressive strength, fc, of 3000 is nearest to:
It is used for cutting long pieces of metals. A. gear hobbling A. 7 B. 6 C. 9 D. 10
A. broaching machine B. gear milling 97. What are valence electrons?
B. planer C. gear shaping A. the outer shell electrons
C. power saw D. gear shaving B. electrons with positive charge
D. shaper 91. Past ME Board Question C. the electrons of the complete quantum
84. Past ME Board Question Broaching operation is generally used in automobile shells
It is used to true and align machine tools, fixtures industry as: D. the K- quantum shell electrons
and works. A. it is a mass production machine 98. What is the strong bond between hydrogen
A. dial gage B. it is an automatic machine atoms known as?
B. dial indicator C. operation is completed in one stroke A. the ionic bond
C. feeler gage D. semi-skilled operators can be employed B. the metallic bond
D. radial indicator 92. Which statement about area moment of inertia C. ionic and metallic bond
85. Past ME Board Question is false? D. the covalent bond
In cranes and other hoisting equipment operating A. I = ∫ d² ( dA ) 99. all of the following statements about air
rules, how many whistle signals are required to B. the area moment of inertia arises entrained concrete are correct, EXCEPT:
lower the boom? whenever the magnitude of the surface A. air entrained is recommended when
A. Five short blasts forces varies linearly with distance concrete is severe frost action
B. Two short blasts C. the moment of inertia of a large area is B. with air entrainment, the quantity of
C. Three short blasts equal to the summation of the inertia of water to produce a given consistency
D. Four short blasts the smaller areas within the large area. (slump) is reduced
86. Past ME Board Question D. the area closest to the axis of interest is C. with air entrainment, the quantity of
Which of the following material has 66% nickel, the most significant water to produce a specified 28 day
29% copper and 3% aluminum? 93. Which of the following affects most of the compressive strength is reduced
A. K Monel electrical and thermal properties of materials? D. air entrainment reduces resistance to the
B. Monel A. The atomic weight expressed in grams per freeze-thaw that occurs when salt is used
C. inconel gram atom. to melt ice or snow
D. inconel B. the electrons, particularly the outermost 100. In the design of a reinforced concrete
87. Past ME Board Question ones structure, tensile strength of the concrete is
Trimming is a process associated with? C. the magnitude of electrical charge of the normally:
A. electroplating protons A. assumed to be 1/10 of the 28- day
B. forging D. the weight of the atoms compressive strength
C. machining of metals 94. Which of the following is not a method of non B. determined by beam test
D. press work destructive testing of steel castings and C. neglected
88. Past ME Board Question forgings? D. assumed to be 200 psi
Foundry crucible is made of? A. radiography ELEMENTS 2
A. German silver B. ultrasonic 1. All of the following groups of plastics are
B. graphite C. magnetic particle thermoplastic, EXCEPT:
C. lead D. chemical analysis A. Polyvinylchloride (PVC) and polyvinyl acetate
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 B. Polyethylene, polypropylene, and polysterene B. Face-centered cubic C. Indeterminate
C. Tetrafluoroethylene (Teflon, and other C. Body-centered D. Zero
fluorocarbons) D. Close-packed hexagonal 15. The mass moment of inertia of a cylinder about its
D. Phenolics, melamine and epoxy 8. What are most common slip planes for face- central axis perpendicular to a circular cross section
2. Which of the following statements is false? centered cubic and body-centered cubic structures, is:
A. Ceramics are inorganic-nonmetallic solids that respectively? A. Directly proportional to its radius
are processed or used at high temperature. A. Face-centered: (111), body-centered: (110) B. Independent of its radius
B. Metals are chemical elements that form B. Face-centered: (100), body-centered: (110) C. Directly proportional to its length
substances that are opaque, lustrous, and good C. Face-centered: (110), body-centered: (111) D. Independent of its length
conductors of heat and electricity. D. Face-centered: (111), body-centered: (100) 16. How many independent properties are required to
C. Oxides, carbides, and nitrides are considered 9. Entrance losses between tank and pipe or losses completely fix the equilibrium state of a pure
to be within the class of materials known as through elbows, fittings and valves are generally gaseous compound?
glasses. expressed as functions of: A. 0
D. Most metals are strong, ductile, and malleable. A. Kinetic energy B. 2
In general, they are heavier than most other B. Friction factor C. 1
substances. C. Pipe diameter D. 3
3. Which of the following is not a viscoelastic D. Volume flow rate 17. The moment of inertia of any plane figure can be
material? 10. With regard to corrosion of metals, passivation is expressed in units of length to the:
A. Plastic the process that: A. First power
B. Rubber A. Intensifies deterioration temporarily B. Second power
C. Metal B. Inhibits further deterioration C. Third power
D. Glass C. Changes the composition of the metal D. Fourth power
4. In molecules of the same composition, what are D. Alter the grain size of the metal 18. The vector which represents the sum of a group of
variations of atomic arrangements known as? 11. How are lines of constant pressure in a fluid related force vectors is called the:
A. Polymers to the force field? A. Magnitude
B. Monomers A. They are parallel to the force field. B. Resultant
C. Isomers B. They are perpendicular to the force field. C. Sum
D. Crystal system C. They are at 45° angles to the force field. D. Phase angle
5. What is the atomic packing factor for a simple D. They are perpendicular only to the force of 19. Which of the following is not a vector quantity?
cubic crystal? gravity. A. Velocity
A. 0.48 12. What are the units of Reynolds number of pipe B. Speed
B. 0.52 flow? C. Acceleration
C. 0.75 A. m/s D. Displacement
D. 0.58 B. lbm/ft-sec² 20. The stress in an elastic material is:
6. Which of the following statements is false? C. ft²/sec A. Inversely proportional to the material’s yield
A. Both copper and aluminum have a face- D. none of the above strength
centered crystal structures. 13. For fully developed laminar flow of fluids through B. Inversely proportional to the force acting
B. Both magnesium and zinc have a hexagonal pipes, the average velocity is what fraction of the C. Proportional to the displacement of the
close-packed crystal structure. maximum velocity in the pipe? material acted upon by the force
C. Iron can have either a face-centered or a body- A. 1/8 D. Inversely proportional to the strain
centered cubic crystal structure. B. 1/2 21. The “SLENDERNESS RATIO” of a column is
D. Both lead and cadmium have a hexagonal C. 1/4 generally defined as the ratio of its:
close-packed crystal structure. D. 3/4 A. Length to its minimum width
7. Which crystal structure possesses the highest 14. For a system to be n equilibrium, the sum of the B. Unsupported length to its maximum radius of
number of close-packed planes and close-packed external forces acting on the system must be: gyration
direction? A. Equal to unity C. Length to its moment of inertia
A. Simple cubic B. A maximum
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 D. Unsupported length to its least radius of 29. The differential of the shear equation is which one 35. Hooke’s Law for an isotropic homogeneous
gyration of the following: medium experiencing on-dimensional stress is:
22. The relationship between the extension of a spring A. Load on the beam A. Stress= E (strain)
and the force required to produce the extension is: B. Tensile strength of beam B. (Force)(area)= (change in length)/ (length)
A. F= ma C. Bending moment of the beam C. Strain= E (stress)
B. F= µN D. Slope of the elastic curve D. Force/Area= length/ change in length
C. F= mv²/ R 30. A vertically loaded beam, fixed at one end and 36. The modulus of rigidity of a steel member is:
D. F= kx simply supported at the other is indeterminate to A. A function of the length and depth
23. The linear portion of the stress-strain diagram of what degree? B. Defined as the unit shear stress divided by the
steel is known as the: A. First unit shear deformation
A. Modulus of elongation B. Second C. Equal to the modulus of elasticity divided by
B. Plastic range C. Third one plus Poisson’s ratio
C. Irreversible range D. Fourth D. Defined as the length divided by the moment
D. Elastic range 31. A thin walled pressurized vessel consists of a right of inertia
24. Principal stresses occur on those planes: circular cylinder with flat ends. Midway between the 37. A thin homogeneous metallic plate containing a
A. Where the shearing stress is zero ends, the stress is greatest in what direction? hole is heated sufficiently to cause expansion. If the
B. Which are 45 degrees apart A. Longitudinal coefficient of surface expansion is linear, the area of
C. Where the shearing is a maximum B. Circumferential the hole will:
D. Which are subjected only to tension C. Radial A. Increase at twice the rate, the area of the metal
25. The ratio of the moment inertia of the cross section D. At an angle 45° to the longitudinal and increases
of a beam to the section modulus is: circumferential direction B. Increase at the same rate as the area of the
A. Equal to the radius of gyration 32. The bending moment at a section of a beam is metal increases
B. Equal to the area of the cross section derived from the: C. Decrease at twice the rate as the area of the
C. A measure of distance A. Sum of the moments of all external forces on metal increases
D. Multiplied by the bending moment to one side of the section D. Decrease at the same rate as the area of the
determine the stress B. Difference between the moments on the side metal increases
26. When an air entertainment agent is introduced into of the section and the opposite side 38. The linear portion of the stress- strain diagram of
a concrete mix: C. Sum of the moments of all external forces on steel is known as the:
A. The strength will increase both sides of the section A. Modulus of elasticity
B. The strength will decrease D. Sum of the moments of all external forces B. Irreversible range
C. The strength will not be affected between supports C. Plastic range
D. The water/ cement ratio must be reduced from 33. The stress concentration factor: D. Elastic range
10-15% A. Is a ratio of the average stress on a section to 39. In a long column (slenderness ratio>160 which of
27. Structural steel elements subjected to torsion the allowable stress the following has the greatest influence on its
develop: B. Cannot be evaluated for brittle materials tendency to buckle under a compressive load.
A. Tensile stress C. Is the ratio of areas involved in an sudden A. The modulus of elasticity of the material
B. Compressive stress change of cross section B. The compressive strength of the material
C. Shearing stress D. Is the ratio of the maximum stress produced C. The radius of gyration of the column
D. Bending stress in a cross section to the average stress over the D. The length of the column
28. The deflection of a beam is: section 40. The area of the shear diagram of a beam between
A. Directly proportional to the modulus of 34. Poisson’s Ratio is the ratio of the: any two points on the beam is equal to the:
elasticity and moment of inertia A. Unit lateral deformation to the unit A. Change in shear between the two points
B. Inversely proportional to the modulus of longitudinal deformation B. Total shear beyond the two points
elasticity and length of the beam cubed] B. Unit stress to unit strain C. Average moment between the two point
C. Inversely proportional to the modulus of C. Shear strain to compressive strain D. Change in moment between the two points
elasticity and moment of inertia D. Elastic limit to proportional limit 41. Poisson’s ratio is principally used in:
D. Inversely proportional to the weight and length
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 A. The determination of the capability of a A. ft-lbs 56. What is a combination of two or more materials
material for being shaped B. HP- hours that has properties that the components materials
B. The determination of capacity of a material C. BTU/hr do not have by themselves?
C. Stress- strain relationships where stresses are D. kw-hours A. Compound
applied in more than one direction 49. Which of the following is not a unit of work? B. Composite
D. The determination of the modulus of A. N.m C. Mixture
toughness B. kg.m²/s² D. Matrix
42. Young’s modulus of elasticity for a material can be C. erg 57. What is a reference sheet for the elements that can
calculated indirectly from which of the following D. dyne be used to form engineering materials?
properties of the material? 50. Which of the following statement about entropy is A. Periodic table
A. Temperature coefficient of expansion and FALSE? B. Truth table
dielectric constant A. Entropy of a mixture is greater than that of its C. Building blocks of Materials
B. Temperature coefficient of expansion and components under the same conditions. D. Structure of Materials
specific heat B. An irreversible process increases entropy of the 58. Who has been accepted as the author of the
C. Density and velocity of sound in the material universe. periodic table which was developed by chemists in
D. Density and inter- atomic spacing in the C. Entropy has the units of heat capacity. the mid-nineteenth century?
material D. Entropy of a crystal at 0°F is zero. A. Vickers
43. . Which of the following is the definition of Joule? 51. Work or energy can be a function of all of the B. Knoop
A. A unit of power following EXCEPT: C. Rockwell
B. A kg m/s² A. Force and distance D. Mendeleev
C. A Newton meter B. Power and time 59. What physical property of a material that refers to
D. A rate of change of energy C. Torque and angular rotation the point at which a material liquefies on heating or
44. Which of the following metals has the highest D. Force and time solidifies on cooling?
specific heat capacity at 100°C? 52. What is the combination of one or more metals A. Melting point
A. Aluminum with a nonmetallic element? B. Curie point
B. Copper A. Metalloid C. Refractive index
C. Bismuth B. Matrix composite D. Specific heat
D. Iron C. Inert 60. What physical property of a material that refers to
45. Which of the following is a member of the halogen D. Ceramic the temperature at which ferromagnetic materials
family? 53. What do you call an atom that has lost or gain an can no longer be magnetized by outside forces?
A. Sodium electron? A. Melting point
B. Hydrogen chloride A. Ion B. Thermal conductivity
C. Fluorine B. Cation C. Thermal expansion
D. Phosphorus C. Hole D. Curie point
46. Which of the following metals is the best heat D. Neutron 61. What is the ratio of the velocity of light in a vacuum
conductor? 54. Polymer comes from Greek words “poly” which to its velocity in another material?
A. Aluminum means “many” and “meros” which means _______. A. Refractive index
B. Gold A. Metal B. Poisson ratio
C. Copper B. Material C. Density
D. Silver C. Part D. Mach number
47. When exposed to the atmosphere, which of the D. Plastic 62. What physical property of a material refers to the
following liquids is coldest? 55. The engineering materials known as “plastics” are amount of weight gain (%) experienced in a
A. Oxygen more correctly called _______. polymer after immersion in water for a specified
B. Nitrogen A. Polyvinyl chloride length of time under a controlled environment?
C. Argon B. Polymers A. Dielectric strength
D. Helium C. Polyethylene B. Electric resistivity
48. Power may be expressed in units of: D. Mers C. Water absorption
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 D. Thermal conductivity C. Compressive yield strength C. Mer
63. What physical property of a material that refers to D. Hardness D. Additive
the rate of heat flow per unit time in a 69. What mechanical property of a material refers to 76. What is a polymer production process that involves
homogeneous material under steady-state the resistance to plastic deformation? forming a polymer chain containing two different
conditions, per unit area, per unit temperature A. Rigidity monomers?
gradient in a direction perpendicular to area? B. Plasticity A. Copolymerization
A. Thermal expansion C. Ductility B. Blending
B. Thermal conductivity D. Hardness C. Alloying
C. Heat distortion 70. What typical penetrator is used in Brinell hardness D. Cross-linking
D. Water absorption test? 77. What is the generic name of a class of polymer
64. What is the absolute value of the ratio of the A. 10mm ball which is commercially known as “nylon”?
transverse strain to the corresponding axial strain in B. 120° diamond (brale) A. Polyacetals
a body subjected to an axial stress? C. 1.6 mm diameter ball B. Polyamide
A. Poisson’s ratio D. 20° needle C. Cellulose
B. Euler’s ratio 71. What parameter is defined as the temperature at D. Polyester
C. Refractive index which the toughness of the material drops below 78. By definition, a rubber is a substance that has at
D. Dielectric index some predetermined value, usually 15 ft-lb? least________ elongation in tensile test and is
65. What physical property of a material refers to the A. Nil ductility temperature capable of returning rapidly and forcibly to its
highest potential difference (voltage) that an B. Curie temperature original dimensions when load is removed.
insulating material of given thickness can withstand C. Thermal conductivity A. 100%
for a specified time without occurrence of electrical D. Heat distortion temperature B. 150%
breakdown through its bulk? 72. What is obtained by repeatedly loading a specimen C. 200%
A. Thermal expansion at given stress levels until it fails? D. 250%
B. Conductivity A. Elastic limit 79. What is a method of forming polymer sheets or
C. Dielectric strength B. Endurance limit or fatigue strength of films into three-dimensional shapes, in which the
D. Electrical resistivity material sheet is clamped on the edge, heated until it softens
66. What physical property of a material refers to the C. Creep and sags, drawn in contact with the mold by
ratio of the amount of heat required to raise the D. All of the choices vacuum, and cooled while still in contact with the
temperature of a unit mass of a substance 1 degree 73. What dimensional property of a material refers to mold?
to the heat required to raise the same mass of water the deviation from edge straightness? A. Calendering
to 1 degree? A. Lay B. Blow molding
A. Specific heat B. Out of flat C. Thermoforming
B. Latent heat C. Camber D. Solid phase forming
C. Heat of fusion D. Waviness 80. What is a process of forming continuous shapes by
D. Heat of fission 74. What dimensional property of a material refers to a forcing a molten polymer through a metal die?
67. What physical property of a material refers to the wavelike variation from a perfect surface, generally A. Calendering
temperature at which a polymer under a specified much wider in spacing and higher in amplitude B. Thermoforming
load shows a specified amount of deflection? than surface roughness? C. Lithography
A. Curie temperature A. Lay D. Extrusion
B. Specific heat B. Waviness 81. What chemical property of a material which refers
C. Heat distortion temperature C. Surface finish to its ability to resist deterioration by chemical or
D. Thermal conductivity D. Out of flat electrochemical reactions with environment?
68. What mechanical property of a material refers to 75. Wood is composed of chains of cellulose molecules A. Stereo specificity
the nominal stress at fracture in a tension test at bonded together by another natural polymer called B. Corrosion resistance
constant load and constant temperature? __________. C. Conductivity
A. Creep strength A. Plastic D. Electrical resistance
B. Stress rapture strength B. Lignin
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82. What refers to the tendency for polymers and 89. What mechanical property of material which is a D. Diamagnetic materials
molecular materials to form with an ordered, time-dependent permanent strain under stress? 97. Which of the following materials have very high
spatial, three- dimensional arrangement of A. Elongation permeabilities?
monomer molecules? B. Elasticity A. Paramagnetic materials
A. Stereo specificity C. Creep B. Non-magnetic materials
B. Conductivity D. Rupture C. Ferromagnetic materials
C. Retentivity 90. In tensile testing, the increase in the gage length D. Diamagnetic materials
D. Spatial configuration measured after the specimen fractures within the 98. What is defined by ASTM as a material that
83. What is the ratio of the maximum load in a tension gage length is called _________. contains as an essential ingredient an organic
test to the original cross- sectional area of the test A. Percent elongation substance of large molecular weight, is solid in its
bar? B. Creep finished state, and at some stage in its manufactured
A. Tensile strength C. Elasticity or in its processing into finished articles, can be
B. Yield strength D. Elongation shaped by flow?
C. Shear strength 91. What is the resistance of a material to plastic A. Metal
D. Flexural strength deformation? B. Metalloid
84. What is the ratio of stress to strain in a material A. Hardness C. Plastic
loaded within its elastic range? B. Stiffness D. Ceramic
A. Poisson’s ratio C. Creepage 99. Some polymetric materials such as epoxies are
B. Refractive index D. Rigidity formed by strong primary chemical bonds called
C. Modulus of elasticity 92. What is the maximum stress below which a material _________.
D. Percent elongation can theoretically endure an infinite number of stress A. Metallic bond
85. What is a measure of rigidity? cycles? B. Vander Waals bond
A. Stiffness A. Endurance state C. Cross linking
B. Hardness B. Endurance test D. Covalent bond
C. Strength C. Endurance limit 100. What do you call a polymer without additives and
D. Modulus of elasticity D. Endurance strength without bending with another polymer?
86. The greatest stress which a material is capable of 93. What is a substance that attracts piece of iron? A. Homopolymer
withstanding without a deviation from acceptable of A. Conductor B. Ethenic polymer
stress to strain is called ________. B. Semiconductor C. Polyethylene
A. Elongation C. Magnet D. Copolymer
B. Proportional limit D. All of the choices 101. Steels that are used for axles, gears, and similar parts
C. Yield point 94. Which of the following is a natural magnet? are requiring medium to high hardness and high
D. Elastic limit A. Steel strength are known as?
87. What refers to the stress at which a material exhibits B. Magnesia A. Medium – carbon steels
a specified deviation from proportionality of stress C. Lodestone B. Very high – carbon steels
and strain? D. Soft iron C. Low – carbon steels
A. Tensile strength 95. Which of the following materials has permeability D. High – carbon steels
B. Shear strength slightly less than that of free space? 102. What method used to determine the reactions on
C. Yield strength A. Paramagnetic materials continuous beams?
D. Flexural strength B. Non-magnetic materials A. Two-moment equations
88. What is the amount of energy required to fracture a C. Ferromagnetic materials B. Three-moment equations
given volume of material? D. Diamagnetic materials C. Second moment equations
A. Impact strength 96. What materials has permeabilities slighter greater D. Third moment equations
B. Endurance limit than that of free space? 103. Which of the following is the measure of torsional
C. Creep strength A. Paramagnetic materials stress?
D. Stress rupture strength B. Non-magnetic materials A. Accuracy
C. Ferromagnetic materials B. Rigidity
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 C. Stiffness
D. Rigidity
104. It is a type of coil where the helical coil is wrapped
into a circle forming an annual ring.
A. Volute spring
B. Hair spring
C. Motor spring
D. Garter spring
105. What type of compound screw which produces a
motion equal to the difference in motion between
the two component screws?
A. Machine Screw
B. Tanden Screw
C. Differential Screw
D. Variable Screw

98