Machine Design Examination 2

1. A machine tool in which an abrasive wheel is used as a cutting tool to obtain a very smooth
finish. (Ans. Grinder)
A. Planer B. Shaper C. Power saw D. Grinder
2. It is used to produce a variety of surfaces by using a circular type cutter with multiple teeth.
(Ans. Milling machine)
A. Milling machine B. Broaching machine C. Beading machine D. Hemming machine
3. A heavy rotating body which serves as reservoir for absorbing and redistributing kinetic energy.
(Ans. Flywheel)
A. Shaft B. Governor C. Flywheel D. Puncher
4. A kind of gear used for heavy duty works where a large ratio of speed is required and are
extensively used in speed is required and are extensively used in speed reducers. (Ans. Worm
gear)
A. Helical gear B. Worm gear C. Bevel gear D. Spiral gear
5. A kind of gear used to transmit motion from one shaft to another shaft at angle to the first. (Ans.
Bevel gear)
A. Helical gear B. Worm gear C. Bevel gear D. Spiral gear
6. The minimum thickness of steel members exposed to weather and accessible for painting is:
(Ans. 10 mm)
A. 6 mm B. 8 mm C. 4 mm D. 10 mm
7. The common deoxidizer and cleanser of steel, forming oxides and sulfates that are carried off in
the slag. (Ans. Manganese)
A. Manganese B. Carbon C. Tungsten D. Sulfur
8. A high transparent and exceeding hard crystalline stone of almost pure carbon. (Ans. Diamond)
A. Gold B. Diamond C. Bronze D. Crystalline
9. A fine grained, salty silica rock used for sharpening edge tools. (Ans. Oilstone)
A. Eutectoid B. Austenite C. Oilstone D. Pearlite
10. An amorphous solid made by fusing silica with a basic oxide. (Ans. Glass)
A. Pearlite B. Rock C. Silicon D. Glass
11. A softy yellow metal, known since ancient times a precious metal which all material values are
based. (Ans. Gold)
A. Solidus B. Bronze C. Gold D. Austenite
12. The operation of cooling a heated piece of work rapidly by dropping it in water, brine or oil.
(Ans. Quenching)
A. Normalizing B. Quenching C. Annealing D. Squeezing
13. A device used to prevent leakage of media. (Ans. Seal)
A. Seal B. Packings C. Teflon D. Graphite
14. A welding operation in which a non-ferrous filler metal melts at a temperature below that of the
metal joined but i8s heated above 450°C. (Ans. Brazing)
A. Arc welding B. Brazing C. Spot welding D. Butt welding
15. The process of working metals b y the application of sudden blows or by a steady pressure. (Ans.
Forging)
A. Trimming B. Welding C. Forging D. Lancing
16. The process of producing a variety of surfaces by using a circular type cutter with multiple teeth.
(Ans. Milling)
A. Piercing B. Cutting C. Embossing D. Milling
17. The softening of metals by heat treatment and most commonly consists of heating the metals
up to near molten state and then cooling them very slowly. (Ans. Annealing)
A. Quenching B. Tempering C. Annealing D. Forming
18. The maximum stress induced in a material when subjected to alternating or repeated loading
without causing failure. (Endurance limit)
A. Elastic Limit B. Proportional limit C. Rupture strength D. Endurance limit
19. The total deformation measured in the direction of the line of stress. (Ans. Strain)
A. Axial deformation B. Elongation C. Strain D. Unit stress
20. The maximum stress to which a material can be subjected without a trace of any permanent set
remaining upon a complete withdrawal of the stress. (Ans. Elastic limit)
A. Ultimate limit B. Proportional limit C. Endurance limit D. Elastic limit
21. The total permissible variation in the size of the dimension; the difference between the limits of
the size. (Ans. Tolerance)
A. Deformation B. Variance C. Tolerance D. Allowance
22. Fluid film desired between two surfaces having relative sliding motion. (Ans. Lubrication)
A. Lube oil B. Lubrication C. Graphite D. Grease
23. Flexible material used to seal pressurized fluids, normally under dynamic conditions. (Ans.
Packings)
A. Packings B. Teflon C. Seals D. Safety shield
24. The total resistance that a material offers to an applied load. (Ans. Stress)
A. Flexure B. Stress C. Elasticity D. Rigidity
25. A property of material which relates the lateral strains to the longitudinal strain. (Ans. Poisson’s
ratio)
A. Rigidity B. Elasticity C. Poisson’s ratio D. Deflection
26. A kind of gear used for heavy duty works where a large ratio of speed is required and are
extensively used in speed reducers. (Ans. Worm gear)
A. Spiral gear B. Bevel gear C. Worm gear D. Helical gear
27. A kind gear used to transmit motion from one shaft to another shaft at an angle to the first.
(Ans. Bevel gear)
A. Spiral gear B. Worm gear C. Helical gear D. Bevel gear
28. Which of the following metals will responds to heat treatment? (Ans. Sulfurite)
B. Hematite B. Magnetite C. Sulfurite D. Siderite
29. Which of the following metals will respond to heat treatment? (Ans. Medium carbon steel)
A. Cast iron B. Medium carbon steel C. Wrought iron D. Low carbon steel
30. Which of the following is a non-magnetic? (Ans. Manganese steel)
A. Cast iron B. Alloy steel C. Cast steel D. Manganese steel
31. The ability of metal to withstand loads without breaking down. (Ans. Strength)
B. Stress B. Strength C. Strain D. Elasticity
32. A machining operation whereby the tool reciprocates and the feed is stationary called: (Ans.
Shaping)
A. Shaping B. Reaming C. Planning D. Turning
33. Any material that retard the flow of electricity used to prevent passage or escape of electric
current from conductors. (Ans. Insulators)
A. Insulators B. Bricks C. Ceramics D. Refractories
34. A metallic element and the only metal that is liquid at ordinary temperature. (Ans. Mercury)
A. Austatinite B. Mercury C. Managanese D. Martensite
35. An alloy of copper and zinc. (Ans. Brass)
A. Aluminum B. Nickel C. Brass D. Bronze
36. Usually a copper-tin alloy is: (Ans. Bronze)
A. Aluminum B. Nickel C. Brass D. Bronze
37. A tool with hardened points used for scribing circles or laying of distances. (Ans. Divider)
A. Trammel B. Caliper C. Divider D. Micrometer
38. Name of mechanism which a welding operator holds during gas welding and at the end of which
the gases are burned to perform the various gas welding operations. (Ans. Torch)
A. Mash B. Core C. Wobble D. Torch
39. The maximum stress to which a material may be subjected before failure occurs. (Ans. Ultimate
stress)
A. Rupture stress B. Yield stress C. Ultimate Stress D. Allowable stress
40. The maximum stress induced in a material when subjected to alternate or repeated loading
without causing failure. (Ans. Endurance limit)
A. Yield point B. Ultimate point C. Endurance limit D. Proportional limit
41. Which of the following is not a classification of iron ore? (Ans. Sulfurite)
A. Hematite B. Magnetite C. Sulfurite D. Siderite
42. Of the following metals, which will respond to heat treatment? (Ans. Medium iron)
A. Cast iron B. Wrought iron C. Medium iron D. Low carbon iron
43. Materials, usually ceramics, employed where resistance to very high temperature is required, as
for furnace linings and metal melting pots. (Ans. Refractories)
A. Refractories B. Gaskets C. Insulators D. Safety shield
44. The softening of metals by heat treatment and most commonly consists of heating the metals
up to near molten stage and then cooling them very slowly. (Ans. Annealing)
A. Annealing B. Hardening C. Normalizing D. Tempering
45. The process of producing a variety of surfaces by using a circular type cutter with multiple teeth.
(Ans. Milling)
A. Milling B. Drilling C. Broaching D. Boring
46. The process of working metals by the application of sudden blows or by a steady pressure. (Ans.
Forging)
A. Rolling B. Forging C. Casting D. Turning
47. A welding operation in which a non-ferrous filler metal melts at a temperature below that of the
metal joined but is heated above 450°C. (Ans. Brazing)
A. Spot welding B. Gas welding C. Brazing D. Arc welding
48. The operation if cooling heated piece of work rapidly by dropping it in water, brine or oil. (Ans.
Quenching)
A. Quenching B. Tempering C. Annealing D. Normalizing
49. A machine tool in which an abrasive wheel is used as a cutting tool to obtain a very high degree
of accuracy and a smooth finish on metal parts, including soft and hardened steel. (Ans. Grinding
machine)
A. Grinding machine B. Broaching machine C. Milling machine D. Boring machine
50. A machine tool used principally to machine flat or place surfaces with a single point cutting tool.
(Ans. Shaper)
A. Shaper B. Planer C. Grinder D. Broaching machine
51. A tool used for measuring diameters. (Ans. Caliper)
A. Micrometer B. Tachometer C. Pyrometer D. Caliper
52. The total permissible variation in the size of dimension; the difference between the limits of
size. (Ans. Tolerance)
A. Tolerance B. Fits C. Allowance D. Clearance
53. The maximum stress to which a material can be subjected without a trace of any permanent set
remaining upon a complete withdrawal of the stress. (Ans. Elastic limit)
A. Ultimate stress B. Rupture stress C. Elastic limit D. Proportional limit
54. Fluid film desired between two surfaces having relative sliding motion. (Ans. Lubrication)
A. Lubrication B. Seal C. Packing D. Safety shield
55. A total deformation measured in the direction of the line stress. (Ans. Strain)
A. Stress. B. Strain C. Endurance limit D. Poisson's ratio
56. A kind of gear used for heavy duty works where a large ratio of speed is required and are
extensively used in speed is required reducers. (Ans. Worm gear)
A. Worm gear B. Spiral gear C. Helical gear D. Bevel gear
57. A kind of gear used to transmit motion from one shaft to another shaft at an angle to the first.
(Ans. Bevel gear)
A. Worm gear B. Spiral gear C. Helical gear D. Bevel gear
58. The area of a machine shop where metal is being melted to form a new shape is: (Ans. Foundry
area)
A. Welding area B. Mass production area C. Foundry area D. Grinding machine
59. A machine used in shaping metal by means of abrasive wheel or removal of metals with an
abrasive is called: (Ans. Grinding machine)
A. Planer B. Power saw C. Shaper D. Grinding machine
60. The ability of material or metal to resist being crushed is: (Compressive strength)
A. Compressive strength B. Fatigue strength C. Torsional strength D. Bending strength
61. A machining operation whereby the tool rotates while the feed is stationary. (Ans. Shaping)
A. Shaping B. Milling C. Turning D. Reaming
62. A machining operation whereby the tool reciprocates and the feed is stationary. (Ans. Shaping)
A. Reaming B. Planing C. Shaping D. Turning
63. Which of the following metals is easy to chisel? (Ans. Manganese steel)
A. Alloy steel B. Stainless steel C. Manganese steel D. Cast iron steel
64. Ferrous metals contain relatively large amount of: (Ans. Carbon)
A. Carbon B. Manganese C. Phosphorus D. Sulfur
65. Which of the following is not a strength property of metals? (Ans. Rocking Strength)
A. Tensile strength B. Rocking strength C. Fatigue strength D. Torsional strength
66. Which of the following is not a kind of mandrel? (Ans. Contraction Mandrel)
A. Expansion mandrel B. Contraction mandrel C. Taper mandrel D. Gang mandrel
67. Which of the following is not a part of lathe machine? (Ans. Fan)
A. Tailstock B. Headstock C. Carriage D. Fan
68. The range of motor power in kW of a universal milling machine, max feed movement 1270 mm
lengthwise, 355 mm lateral, 508 mm vertical is: (Ans. 11 to 15 kW)
A. 11 to 15 kW B. 16 to 21 kW C. 7.5 to 10 kW D. 22 to 30 kW
69. The motor power in kW of a punch press, 50.8 mm hole diameter, 25.4 mm thickness, for soft
steel is: (Ans. 7.5 kW)
A. 15 kW B. 21 kW C. 7.5 kW D. 30 kW
70. The range of motor power in kW of a cylindrical grinding machine 600 x 50 mm wheel size, 2,400
to 4,200 mm center distance is: (Ans. 11 to 15 kW)?(Ans. 7.5 kW)
A. 11 to 15 kW B. 16 to 21 kW C. 7.5 kW D. 22 to 30 kW
71. The motor power in kW of a forming or bending machine 1600 mm width, 508 mm head
movement is: (Ans. 15 kW)
A. 7.5 kW B. 11 kW C. 15 kW D. 22 kW
72. The range of motor power in kW of an Engine lathe machine, average service 1000 mm to 1300
mm swing. (Ans. 22 to 30 kW)
A. 11 to 15 kW B. 7.5 to 10 kW C. 16 to 21kW D. 22 to 30 kW
73. A machine which can flatten surfaces on a horizontal, vertical or angular plane. (Ans. Shaper)
A. Shaper B. Planer C. Power saw D. Tool grinder
74. The ability of metal to withstand forces thus following a number of twist. (Ans. Shear strength)
A. Shear strength B. Bearing strength C. Endurance Limit D. Deformation
75. A property of material which relates the lateral strain to the longitudinal strain. (Ans. Poison's
ratio)
A. Stress B. Modulus of Elasticity C. Poisson's ratio D. Deformation
76. A total resistance that a material offers to an applied load. (Ans. Stress)
A. Friction force B. Stress C. Rigidity D. Compressive force
77. A total deformation measured in the direction of the line of stress. (Ans. Strain)
A. Strain B. Elasticity C. Elongation D. Contraction
78. Ann alloy of copper and zinc. ( Ans. Brass)
A. Aluminum B. Brass C. Bronze D. Chromium
79. A metallic element of copper -tin alloy. (Ans. Bronze)
A. Aluminum B. Brass C. Bronze D. Chromium
80. A metallic element and only metal that is liquid at ordinary temperature. (Ans. Mercury)
A. Aluminum B. Mercury C. Zirconium D. Zinc
81. Any material that retard the flow of electricity, used to prevent passage or escape of electric
current from conductors. (Ans. Insulator)
A. Refractory B. Ceramics C. Coating material D. Insulator
82. The maximum stress to which a material may be subjected before failure occurs. (Ans. Ultimate
strength)
A. Rupture strength B. Ultimate strength C. Yield strength D. Proportional strength
83. The maximum stress induced in a material when subjected to alternating or repeated loading
without causing failure. (Ans. Endurance limit )
A. Ultimate strength B. Yield strength C. Endurance limit D. Rupture strength
84. Fluid film desired between two surfaces having relatively sliding motion. (Ans. Lubrication )
A. Lubrication B. Graphite C. Rigidity D. Deformation
85. The ability of metal to withstand loads without breaking down. (Ans. Strength )
A. Strength B. Elasticity C. Rigidity D. Deformation
86. Materials, usually ceramics, employed where resistance to very high temperature is required, as
for furnace linings and metal melting pots. (Ans. Refractories)
A. Insulators B. Gaskets C. Packings D. Refractories
87. An alloying element used principally to produce stainless steel. (Ans. Chromium )
A. Aluminum B. Brass C. Bronze D. Chromium
88. A coating material used to produce galvanized iron. (Ans. Zinc)
A. Zirconium B. Zinc C. Aluminum D. Chromium
89. A group of thin steel strips used for measuring clearances. (Ans. Feeler gage)
A. Feeler gage B. Tachometer C. Micrometer D. Caliper
90. A hand tool to measure tension in bolts. (Ans. Torque wrench )
A. Torque wrench B. Tachometer C. Shaver D. Tensor
91. Ratio of pitch diameter to the number of teeth. (Ans. Module)
A. Diametral pitch B. Module C. Contact ratio D. Helical overlap
92. A circle the radius of which is equal to the distance from the gear axis to the pitch point.
A. Pitch circle B. Root circle C. Base circle D. Outside circle
93. A circle coinciding with a tangent to the bottom of the tooth space. (Ans. Root circle)
A. Pitch circle B. Root circle C. Base circle D. Outside circle
94. The method of cold working by compression. (Ans. Piercing)
A. Broaching B. Lapping C. Piercing D. Reaming
95. A machine tool used to finish internal and external surfaces by the use of a cutter called a
broach, which has a series of cutting edges or teeth. (Ans. Broaching machine )
A. Lathe machine B. Broaching machine C. Planer D. Shaper
96. Shaper cutting tool which is made to move slowly while acting on the work which is revolving on
a horizontal axis. (Ans. Lathe machine )
A. Lathe machine B. Broaching machine C. Planer D. Shaper
97. A machine tool used to produce a variety of surfaces by using a circular type cutter with multiple
teeth. ( Ans. Milling machine )
A. Lathe machine B. Milling machine C. Broaching machine D. Grinding machine
98. Used in the production off flat surfaces on pieces too large or too heavy to hold in a shaper.
(Ans. Planer )
A. Planer B. Shaper C. Grinder D. Shaver
99. Used to machine flat or curved surfaces with a tool which moves in a reciprocating motion. (Ans.
Shaper)
A. Planer B. Shaper C. Grinder D. Shaver
100. Which of the following materials that can wear away a substance softer than itself?
( Ans. Abrasive)
A. Abrasive B. Tungsten C. Carbon D. Corrosive