CUTTING TOOL / TOOL MATERIAL

1. The various cutting tool materials used are:

a) high speed steels
b) cast cobalt alloys
c) carbides
d) all of the mentioned
Answer: d
2. High speed steels are suitable for making
a) high positive rake angle tools
b) interrupted cuts
c) machine tools with ow stiffness that are subject to vibration
d) all of the mentioned
Answer: d
3. ___________ improves toughness, wear resistance, and high temperature strength.
a) Chromium
b) vanadium
c) Tungsten
d) None of the mentioned
Answer: a
4. _____________ contains nickel molybdenum matrix.
a) Chromium
b) Titanium carbide
c) Tungsten
d) None of the mentioned
Answer: b
5. Coating materials used are
a) titaniun nitride
b) titanium carbide
c) titanium carbonitride
d) all of the mentioned
Answer: d
6. Characteristics of coated cutting tools are:
a) high hardness
b) chemical stability
c) low thermal conductivity
d) all of the mentioned
Answer: d
7. Ceramic tools are fixed to a tool body by ___________
a) soldering
b) brazing
c) welding
d) clamping
Answer: b
8. The carbide tools operating at very low cutting speeds
a) reduces tool life
b) increases tool life
c) have no effect on tool life
d) spoils the work piece
Answer: a
9. High speed steel tools retain their hardness upto a temperature of a) 2500
b) 3500
c) 5000
d) 9000
Answer: d
10. The trade name of a non ferrous cast alloy composed of cobalt, chromium and tungsten is
called
a) ceramic
b) stellite
c) diamond
d) cemented carbide
Answer: b
11. If a percentage of cobalt in Tungsten carbide tool increases, then toughness of tool will a)
Increase
b) Decrease
c) Remains Constant
d) First increase then decrease
Answer: a
12. Which of the following tools is most suitable for very hard and brittle material? a)
HSS
b) Cast-cobalt alloy
c) Carbides
d) None of the mentioned
Answer: c
13. High speed steels are most suitable for
a) High Positive rake angle tools
b) High Negative rake angle tools
c) Zero Rake angle tools
d) None of the mentioned
Answer: a
14. Which of the following tool material will offer lower friction and higher resistance to
cracks and wear? a) HSS
b) TiC
c) WC
d) TiCN
Answer: d
15. Which of the following tool material will offer lower friction and higher resistance to
cracks and wear? a) HSS
b) TiC
c) Cast cobalt alloys
d) Coated tools
Answer: d
16. Which of the following material can be used for coating on tools? a)
HSS
b) TiCN
c) WC
d) cBN
Answer: b
17. Cutting tool should maintain its hardness.
a) True
b) False
Answer: a
18. Thermal conductivity of cutting tool must be
a) High
b) Low
c) Very low
d) None of the mentioned
Answer: a
19. Hot hardness of cutting of cutting tool should be
a) Large
b) Small
c) Very small
d) None of the mentioned
Answer: a
20. Wearing resistance of cutting tool must be
a) High
b) Low
c) Very low
d) None of the mentioned
Answer: a

21. What is the percentage of carbon tungsten in T-series of high speed steel? a) 20
b) 18
c) 16
d) 14
Answer: b
22. What is the percentage of carbon chromium in T-series of high speed steel? a) 0
b) 8
c) 6
d) 4
Answer: d
23. What is the percentage of vanadium in T-series of high speed steel? a) 2
b) 1
c) 6
d) 4
Answer: b
24. What is the percentage of Molybdenum in M-series of high speed steel? a) 12
b) 21
c) 16
d) 24
Answer: b
25. M-series high speed steel has more efficiency than T-series high speed steel.
a) True
b) False

Answer: a
26. Presence of Chromium in T-series steel imparts
a) Hardness
b) Corrosion resistance
c) Abrasion resistance
d) Toughness
Answer: b
27. Which of the following element is responsible for providing red hot hardness property to T-
series high speed steel? a) W
b) Cr
c) V
d) Mo
Answer: a
28. If percentage of cobalt in Tungsten carbide tool increases, then the strength of the tool will
a) Increase
b) Decrease
c) Remains Constant
d) First increase then decrease
Answer: b
29. If percentage of cobalt in Tungsten carbide tool increases, then hardness of tool will a)
Increase
b) Decrease
c) Remains Constant
d) First increase then decrease
Answer: b
a) Increase
b) Decrease
c) Remains Constant
d) First increase then decrease
Answer: b

30. In machining cast iron, no cutting fluid is required.

a) True
b) False
Answer: a
31. The cutting fluid mostly used for machining alloy steels is :
a) water
b) soluble oil
c) dry
d) sulphurised mineral oil
Answer: d
32. Cutting fluids are used to:
a) cool the tool
b) improve surface finish
c) cool the workpiece
d) all of the mentioned
Answer: d
33. The cutting fluid mostly used for machining steel is:
a) water
b) soluble oil
c) dry
d) heavy oils
Answer: b
34. Functions of cutting fluids are
a) to cool the cutting tool and the workpiece
b) to lubricate the chip, tool and workpiece
c) to help carry away the chips
d) all of the mentioned

Answer: d
35. ______________ form mixtures ranging from emulsions to solutions.
a) Water miscible fluids
b) Neat oils
c) Synthetics
d) None of the mentioned
Answer: a
36. Advantages of chemical fluids are
a) a very light residual film that is easy to remove
b) heat dissipation is rapid
c) good detergent properties
d) all of the mentioned
Answer: d
37. The methods of application of cutting fluids are
a) flooding
b) jet application
c) mist application
d) all of the mentioned

Answer: d
38. In _____________ a high volume flow of the cutting fluid is generally applied on the back of
the chip.
a) flooding
b) jet application
c) mist application
d) all of the mentioned
Answer: a
39. In _________ the cutting fluid, which may be either a liquid or a gas is applied in the form
of a fine jet under pressure. a) flooding
b) jet application
c) mist application
d) all of the mentioned
Answer: b
40. ______________ controls both direction of chip flow and the strength of the tool tip.
a) Side rake angle
b) Relief angle
c) Rake angle
d) None of the mentioned
Answer: c
41. _______________ acts downward on the tool tip.
a) Cutting force
b) Radial force
c) Thrust force
d) None of the mentioned

Answer: a
42. _________ acts in the longitudinal direction.
a) Cutting force
b) Radial force
c) Thrust force
d) None of the mentioned
Answer: c
43. ____________ acts in the radial direction.
a) Cutting force
b) Radial force
c) Thrust force
d) None of the mentioned
Answer: b
44. For turning a small taper on a long workpiece, the suitable method is a) by
a form tool
b) by setting over the tail stock
c) by a taper turning attachment
d) none of the mentioned
Answer: b

LATHE MACHINE

45. End of the work piece can be supported by using

a) Headstock
b) Tailstock
c) Tool Post
d) None of the mentioned
Answer: b
46. Which of the following position of tumbler gear lever set will move carriage towards
headstock of the lathe? a) Up
b) Middle
c) Down
d) None of the mentioned
Answer: a
47. Which of the following can be used to reverse the direction of lead screw relative to the
direction of spindle movement? a) Speed lever
b) Feed Lever
c) Tumbler gear lever
d) Friction clutch
Answer: c
48. Which of the following arrangement is used in the movement of carriage along the ways?
a) Rack and pinion
b) Spindle mechanism
c) Crank and slotted lever mechanism
d) None of the mentioned
Answer: a
49. Which of the following have a live centre?
a) Tail stock
b) Headstock
c) Tool post
d) None of the mentioned
Answer: b
50. Which of the following is also known as Puppet head?
a) Headstock
b) Tailstock
c) Tool Post
d) None of the mentioned
Answer: b
51. Which of the following part of lathe slides along bed ways?
a) Cross slide
b) Saddle
c) Compound rest
d) None of the mentioned
Answer: b
52. Which of the following part of lathe move in a direction normal to the axis of spindle? a)
Cross slide
b) Saddle
c) Compound rest
d) None of the mentioned
Answer: a
53. Which of the following is used to give power feed during cutting of threads? a)
Rack and pinion
b) Planer mechanism
c) Quick return mechanism
d) Using spilt nut
Answer: d
54. Which of the following serves as a housing for driving pulley, and back gears? a)
Headstock
b) Tailstock
c) Tool Post
d) None of the mentioned
Answer: b
55. The tail stock set over required to turn a taper on the entire length of a workpiece
having diameters D and d is a) D – d/2L
b) D – d/L
c) D – d/2
d) D – d
Answer: b
56. For turning internal tapers, the suitable method is
a) by a form tool
b) by setting over the tail stock
c) by a taper turning attachment
d) none of the mentioned
Answer: c
57. The tail stock set over method of taper turning is preferred for
a) internal tapers
b) small tapers
c) long slender tapers
d) steep tapers Answer: c

58. Which of the following is correct about series of range of speed in simple lathe? a)
Geometric progression
b) Arithmetic progression
c) Logarithmic progression
d) Harmonic progression
Answer: a
59. Which of the following is the correct basis in designing feed gear box for screw cutting? a)
Geometric progression
b) Arithmetic progression
c) Logarithmic progression
d) Harmonic progression
Answer: a

60. If cutting tool travel 1000mm in the direction of feed motion with work piece rotational
speed of 500 rpm and feed rate of 0.2mm/rev, machining time in minutes will be a) 2
b) 6
c) 8
d) 10
Answer: d
61. Facing of work piece of diameter 72mm is need to be done at spindle speed of 80 rev per min
at cross feed of 0.3mm/rev. The time required in minute for facing operation will be
a) 2
b) 1.5
c) 2.5
d) 3
Answer: b
62. Compound rest swiveling method in taper turning operation is most suitable for
a) Long jobs with small taper angles
b) Short jobs with small taper angles
c) Short jobs with steep taper angles
d) Long jobs with steep taper angles
Answer: c
63. In which of the following, tail stock method of taper turning operation will be preferred
more?
a) Internal tapers
b) Steep tapers
c) Small tapers
d) Long slender tapers
Answer: d
64. Which of the followings is the correct type of threads used in lead screw having half nut in
the lathe which is free to rotate in both directions? a) ACME threads
b) Buttress threads
c) Whitworth threads
d) V-threads
Answer: a
65. Which of the following is used to produce quality screw threads?
a) Thread casting
b) Thread cutting with single point tool
c) Thread milling ad cutting with single point tool
d) Thread chasing Answer: d.

66. Which of the following can produce both external as well as internal threads?
a) Die threading with self-opening die heads
b) Thread tapping with taps
c) Thread milling and multiple-thread cutters
d) Thread chasing with multiple-rib chasers
Answer: c
67. In surface finishing operation one should use a sharp tool with a ______ feed and _______
Speed of rotation of the job. a) Minimum, minimum
b) Minimum, maximum
c) Maximum, maximum
d) Maximum, minimum

Answer: b

68. Which of the following is the correct reason for keeping transverse force minimum in turning
of slender rod?
a) To enhances surface finish
b) To increase productivity
c) To increase efficiency of cutting
d) To reduce undesired vibration during turning
Answer: d
69.Self centered chuck has ___ number of jaws.
a) 10
b) 1
c) 2
d) 3
Answer: d
70. During groove cutting in a lathe, by using a parting tool, which of the following forces are
encountered? a) Tangential
b) Radial
c) Tangential, Radial and Axial
d) Tangential and Radial
Answer: c
71. Which of the following will give the best result for taper turning on the internal surface? a)
Using tailstock offset method
b) Using taper attachment method
c) Using form tool
d) Using compound rest method
Answer: d
72. Lead screw of lathe have double start thread with a pitch of 4mm. What should be the ratio
of speed between lead screw and spindle for producing a single start thread of 2 mm pitch? a)
1:2
b) 1:3
c) 1:4
d) 1:5
Answer: c
73. Let screw of 2mm pitch is needed to be cut on lathe machine. Lead screw of lathe has pitch
of 6mm. Which of the following statement is correct?
a) Speed of lead screw> speed of spindle
b) Speed of lead screw< speed of spindle
c) Speed of lead screw=speed of spindle
d) None of the mentioned
Answer: b
74. Speed of lead screw decreases in relative to speed of spindle as many times the
required pitch is larger than pitch of lead screw. a) True
b) False
Answer: a
75. Speed of lead screw decreases in relative to speed of spindle as many times the
required pitch is smaller than pitch of lead screw. a) True
b) False
Answer: b
76. What are thread chasers?
a) Multipoint cutting tool
b) Single point cutting tool
c) A work holding device
d) None of the mentioned
Answer: a
10. Total load is distributed over all teeth when thread cutting is done using thread chaser. a)
True
b) False

Answer: a

77. Which of the following can be effectively used for holding eccentric job? a)
Four jaw chuck
b) Three jaw chuck
c) Both three jaw chuck and four jaw chuck
d) Two jaw chuck
Answer: a
78. Which of the following can be effectively used for holding irregular job? a)
Four jaw chuck
b) Three jaw chuck
c) Both three jaw chuck and four jaw chuck
d) Two jaw chuck
Answer: a
79. Which of the following is also known as universal chuck?
a) Four jaw chuck
b) Three jaw chuck
c) Both three jaw chuck and four jaw chuck
d) Two jaw chuck
Answer: a
80. Which of the following is mostly used for holding bored part of the job? a)
Mandrels
b) Dogs
c) Collet
d) Angle plate Answer: a
81. What will be the value of half taper angle in degrees if diameter of big end is 100mm and
diameter of small end is 60mm for a 1m long job? a) 3.19
b) 5.29
c) 1.14
d) 2.29
Answer: c
82. What will be the value of half taper angle in degrees if diameter of big end is 500mm and
diameter of small end is 60mm for a 1m long job? a) 31.10
b) 52.30
c) 31.10
d) 12.40
Answer: d
83. What will be the value of diameter of big end in mm for tapered job if diameter of small end
and length of job is 60mm and 1m respectively? Given half taper angle is equal to 12.4 degrees.
a) 600
b) 500
c) 400
d) 300
Answer: b
84. What will be the value of diameter of small end in mm for tapered job if diameter of big end
and length of job is 60mm and 1m respectively? Given half taper angle is equal to 1.14 degrees.
a) 600
b) 200
c) 100
d) 300
Answer: c
85. During taper turning operation 100mm of smaller side diameter and 800mm of bigger side
diameter was required. What will be the value of taper gradient for a job of 1m in length?
a) 15.01
b) 19.29
c) 28.35
d) 56.31
Answer: b
86. During taper turning operation 100mm of smaller side diameter and 800mm of bigger side
diameter was required. What will be the value of Conicity for a job of 1m in length? a) 31.20
b) 23.20
c) 56.32
d) 38.58
Answer: d

87. What will be the length of job in m if diameter of big end is 100mm and diameter of
small end is 60mm for a taper angle of 1.14 degree? a) 5
b) 2
c) 7
d) 1
Answer: d
88. The job of total length 300mm is tapered turned on lathe using tailstock set over
method. The two diameters obtained are 80mm and 500mm and length of taper was
200mm only. Tail stock set over is equal to a) 10
b) 15
c) 20
d) 25
Answer: b
89. A job of total length 800mm is tapered turned on lathe using tailstock set over method.
The two diameters obtained are 450mm and 500mm and length of taper was 700mm only. Tail
stock set over is equal to a) 10.12
b) 15.32
c) 20.32
d) 28.57
Answer: d
90. A cast iron piece of total length 100mm is needed to be tapered for a length of 40mm using
swiveling the compound rest method. Diameter of job is 20mm and smaller end have nearly
zero diameter. What should the angle in degrees by which compound rest should be rotated?
a) 20.36
b) 45.21
c) 14.03
d) 5.23
Answer: c
91. Distance measured normal to the axis of part, between crest and root of thread is
known as a) Pitch
b) Depth of threads
c) Thread angle
d) Major diameter
Answer: b
92. Distance from one point of thread to the next corresponding point is known as a)
Pitch
b) Depth of threads
c) Thread angle
d) Major diameter
Answer: b
93. If the nut rotated in clockwise direction and advances axially, then threads present in nut are

a) Right Handed threaded

b) left handed thread
c) Right handed and left handed both
d) None of the mentioned
Answer: a
94. Lead of nut is 2mm and has double start threads. What is the pitch of nut? a) 1
b) 2
c) 3
d) 6
Answer: a
95. A thread has number of starts equal to one. Which of the following is most correct about
thread?
a) Pitch > lead
b) Pitch<<lead
c) Pitch < lead
d) Pitch=lead
Answer: d
96. Let screw of 10mm pitch is needed to be cut on lathe machine. Lead screw of lathe has
pitch of 6mm. Which of the following statement is correct? a) Speed of lead screw is greater
than speed of spindle
b) Speed of lead screw is less that speed of spindle
c) Speed of lead screw is equal to speed of spindle
d) None of the mentioned
Answer: a

97. Which of the following lathe requires very high skills for operation? a)
Centre lathe
b) Capstan lathe
c) Turret lathe
d) All of the mentioned
Answer: a
98. Which of the following have the lowest degree of automation?
a) Centre lathe
b) Capstan lathe
c) Turret lathe
d) All of the mentioned
Answer: a

99. Which of the following requires high labor cost?

a) Turret lathe
b) Capstan lathe
c) Centre lathe
d) All of the mentioned
Answer: c
100. Which of the following offers minimum overhead charge? a)
Turret lathe
b) Capstan lathe
c) Centre lathe
d) All of the mentioned
Answer: c
101. Which of the following lathe is most versatile? a)
Turret lathe
b) Capstan lathe
c) Centre lathe
d) All of the mentioned
Answer: c

102. Turret head in turret lathe is generally mounted on a)

Slide
b) Saddle
c) Ram
d) None of the mentioned
Answer: b
103. Lead crew is present in turret lathe for thread cutting a)
True
b) False
Answer: b
104. Lead crew is present in Capstan lathe for thread cutting a)
True
b) False
Answer: b
105. Which of the following is not much effective for mass production i.e. production of
same types of job? a) Turret lathe
b) Capstan lathe
c) Centre lathe
d) All of the mentioned
Answer: c
106. Which of the following lathe requires low maintenance? a)
Turret lathe
b) Capstan lathe
c) Centre lathe
d) All of the mentioned
Answer: c SHAPER

107. Cutting of material during shaping operation takes place in a)

Forward stroke
b) Backward stroke
c) Both forward and backward stroke
d) None of the mentioned
Answer: a
108. Which of the following part of shaper supports all of the other parts of machines? a)
Base
b) Column

c) Cross rail
d) Table
Answer: a
109. Cutting of material during slotting operation takes place in a)
Forward stroke
b) Backward stroke
c) Both forward and backward stroke
d) None of the mentioned
Answer: a
110. Which of the following act as housing for an operating mechanism in shaper? a)
Base
b) Column
c) Cross rail
d) Table
Answer: b
111. Which of the following part of shaper machine carries table elevating mechanism? a)
Base
b) Column
c) Cross rail
d) Table
Answer: c
112. Which of the following part of shaper machine carries vertical guide ways mechanism? a)
Base
b) Column
c) Cross rail
d) Table
Answer: c
113. Which of the following part of shaper machine hold and supports the work piece? a)
Base
b) Column
c) Cross rail
d) Table
Answer: d
114. Which of the following part of shaper machine carries tool head? a)
Cross rail
b) Column
c) Ram
d) Table
Answer: c
115. Which of the following part of shaper provides straight line motion of tool? a)
Cross rail
b) Column
c) Ram
d) Table
Answer: c
116. Which of the following part of shape is used to hold the tool? a)
Cross rail
b) Tool head
c) Ram
d) Vice
Answer: b
117. Which of the following can be used as job holding device in shaping machine? a)
Cross rail
b) Column
c) Ram
d) vice

Answer: d
118. Which of the following shaper machine cuts in return stroke? a)
Vertical shaper
b) Horizontal shaper
c) Draw cut shaper
d) Universal shaper
Answer: c
119. Slotted link of crank and slotted lever mechanism is also known as a)
Lever
b) Rocker
c) Crank
d) None of the mentioned
Answer: b
120. Slotted link of crank and slotted link mechanism is pivoted to a)
Fulcrum
b) Lever
c) Tool
d) None of the mentioned
Answer: a
121. Time of return stroke is ________ the time of forward stroke in crank and slotted link
mechanism.
a) Less than
b) More than
c) Equal to
d) None of the mentioned
Answer: a
122. In crank and slotted link mechanism, cutting angle is 220 degrees. What should be the
return stroke angle? a) 12
b) 90
c) 140
d) 360
Answer: c
123. In a crank and slotted lever mechanism, length of fixed link and crank is 250 mm and 100
mm respectively. Inclination of slotted lever with vertical at extreme position in degrees is
equal to a) 25
b) 23.6
c) 28.3
d) 20
Answer: b
124. In a crank and slotted lever mechanism, length of fixed link and crank is 250 mm and 100
mm respectively. Ratio of cutting stroke time to return stroke time will be a) 5
b) 2.6
c) 1.7
d) 0
Answer: c
125. In a crank and slotted lever mechanism, length of fixed link and crank is 250 mm and 100
mm respectively. Cutting angle in degrees is equal to a) 47.2
b) 12.3
c) 56
d) 69.3
Answer: a
126. In a crank and slotted lever mechanism, length of fixed link and crank is 250 mm and 100
mm respectively. Return angle in degrees is equal to a) 147.2
b) 112.3
c) 156
d) 132.8
Answer: d
127. In a crank and slotted lever mechanism, length of fixed link and crank is 250 mm and 100
mm respectively. Length of stroke in mm will be a) 447.2
b) 312.3
c) 56
d) 360.3

Answer: d

SLOTTER

128. Cutting of material during slotting operation takes place in a)

Forward stroke
b) Backward stroke
c) Both forward and backward stroke
d) None of the mentioned
Answer: a
129. Which of the following part of slotting machine supports all of the other parts of
machines? a) Base
b) Column
c) Ram
d) Table
Answer: a
130. Cutting of material during shaping operation takes place in a)
Forward stroke
b) Backward stroke
c) Both forward and backward stroke
d) None of the mentioned
Answer: a
131. Which of the following act as housing for an operating mechanism in slotting machine? a)
Base
b) Column
c) Cross rail
d) Table
Answer: b
132. Which of the following part of slotting machine carries table elevating mechanism? a)
Base
b) Column
c) Ram
d) Table
Answer: b.

133. Which of the following part of slotting machine carries vertical guide ways
mechanism? a) Base
b) Column
c) Cross rail
d) Table
Answer: b
134. Which of the following part of slotting machine hold and supports the work piece? a)
Base
b) Column
c) Cross rail
d) Table
Answer: d.

135. Which of the following part of slotting machine carries tool head? a)
Cross rail
b) Column
c) Ram
d) Table
Answer: c
136. Which of the following part of slotting machine provides straight line motion of tool? a)
Cross rail

b) Column
c) Ram
d) Table

Answer: c
137. Which of the following part of slotting machine is used to hold the tool? a)
Cross rail
b) Tool head
c) Ram
d) Vice
Answer: b
138. Which of the following can be used as job holding device in slotting machine? a)
Cross rail
b) Column
c) Ram
d) Vice
Answer: d
MILLING

139. Which of the following act as load bearing part of milling machine? a)
Base
b) Column
c) Knee
d) Table
Answer: a
140. Knee of milling machine is attached and slides up and down on a)
Base
b) Column
c) Knee
d) Table
Answer: a
141. Motor drive in milling machine is generally attached to a)
Base
b) Column
c) Knee

d) Table
Answer: b
142. Which of the following part of milling machine can be used for reservoir for coolant? a)
Base
b) Column
c) Knee
d) Table
Answer: a
143. Which of the following is capable of sliding up and down in milling machines? a)
Base
b) Column
c) Knee
d) Table
Answer: c
144. Which of the following part movement of milling machines helps in adjustment of
table height? a) Base
b) Column
c) Knee
d) Table
Answer: c
145. Which of the following part of the milling machine is used to support work piece? a)
Base
b) Column
c) Knee
d) Table
Answer: d
146. Table of milling machine is generally made up of a)
Cast iron
b) Steel
c) Aluminum
d) None of the mentioned
Answer: a
147. Which of the following carries clamping bolt T-slots for fixing work piece? a)
Base
b) Column
c) Knee
d) Table
Answer: a
1148. Which of the following is the heavy support provided at the top of both plain and
universal milling machine? a) Base
b) Over arm
c) Knee
d) Table
Answer: b
149. Arbors in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: a
150. Collets in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned

Answer: a
151. Adaptors in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: a
152. Vice circular table in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: b
153. Indexing head in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: b
154. Tailstock in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: b
155. Spiral milling attachment in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: c
156. Vertical milling attachment in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: c
157. Slotting milling attachment in milling machines are generally used to a)
Hold cutters
b) Hold the work piece on table
c) Act as auxiliary spindle
d) None of the mentioned
Answer: c
158. Which of the following is not a standard milling attachment? a)
Arbors
b) Collets
c) Jigs and fixture
d) Adaptors
Answer: c
159. Which of the following milling operation can be used for machining a flat surface,
parallel to the axis of cutter? a) Slab milling
b) Face milling
c) Angular milling
d) Form milling
Answer: a
160. Which of the following milling operation can be used for machining of flat surface which is
the right angle to the axis of cutter?

a) Slab milling
b) Face milling
c) Angular milling

d) Form milling
Answer: b
161. Which of the following milling operation can be used for machining of flat surface
which is at some angle to the axis of cutter? a) Slab milling
b) Face milling
c) Angular milling
d) Form milling
Answer: c
162. Which of the following milling process is used for machining of irregular shapes? a)
Slab milling
b) Face milling
c) Angular milling
d) Form milling
Answer: d
163. Which of the following milling process is used for machining of two parallel vertical
surface of a job simultaneously? a) Key way milling
b) Groove milling
c) Gang milling
d) Straddle milling
Answer: d
164. Which of the following milling process is used for machining of a number of flat
horizontal and vertical surfaces simultaneously using more than two cutters at the same time
mounted on common arbor? a) Key way milling
b) Groove milling
c) Gang milling
d) Straddle milling
Answer: c

165. Which of the following milling operation can be used for producing grooves in work piece?
a) Key way milling
b) Groove milling
c) Gang milling
d) Straddle milling
Answer: b
166. Which of the following operation can be used for parting of work piece in two pieces? a)
Key way milling
b) Groove milling
c) Saw milling
d) Straddle milling Answer: c.

167. In which of the following milling cutters, power requirement will increase slightly? a)
Negative rake angle tool
b) Positive rake angle tool
c) Both positive and negative rake angle tool
d) None of the mentioned
Answer: b
168. Which of the following cutter can be used for finishing off previously milled slot? a)
Key way milling cutter
b) Dovetail milling cutter
c) Saw milling cutter
d) Slitting milling cutter
Answer: b
169. Diameter of milling cutter is 100 mm, running at 210 rpm. Cutting speed in m/min is
equal to a) 26
b) 23
c) 66

d) 78
Answer: c
170. Distance moved by table in mm in one minute in any direction is known as a)
Feed per minute
b) Feed per tooth
c) Feed per revolution
d) None of the mentioned
Answer: a
171. Distance moved by a table in mm during time when cutter revolve through angle
corresponding to distance between two cutting edges of two adjacent teeth is known as a) Feed
per minute
b) Feed per tooth
c) Feed per revolution
d) None of the mentioned
Answer: b
172. In a milling operation, feed per tooth is 0.020 mm and the total number of teeth on
milling cutter is 50. Feed per revolution in mm is equal to a) 0.2
b) 1.4
c) 1.0
d) 0.7
Answer: c
173. In a milling operation, feed per revolution is 5 mm and the total number of teeth on
milling cutter is 50. Feed per tooth in mm is equal to a) 0.1

b) 0.2
c) 0.5
d) 0.05
Answer: a

174. In a milling operation, feed per revolution is 0.05 mm and speed of 400 rpm. Feed per min
in mm/min is equal to a) 1
b) 2
c) 0.5
d) 0.05
Answer: b
175. In a milling operation, feed per min is 10 mm and speed of 500 rpm. Feed per min in
mm/min is equal to a) 1
b) 2
c) 0.5
d) 0.04
Answer: d
176. In a milling operation feed per tooth is .002 mm and number of teeth is 50 rotating with
60 rpm. Feed per min in mm/min is equal to a) 3
b) 4
c) 6
d) None of the mentioned
Answer: c
177. In a milling operation feed per tooth is .002 mm and number of teeth is 30 rotating with
40 rpm. Feed per min in mm/min is equal to a) 3
b) 4.3
c) 2.4
d) None of the mentioned
Answer: c
178. In a milling operation feed per revolution is 10 mm/rev and number of teeth is 50
rotating with 10 rpm. Feed per tooth in mm is equal to a) .02
b) .04
c) .06
d) None of the mentioned
Answer: a

179. Dividing head is generally used for changing the angular position of work piece
relative to milling cutter. a) True
b) False
Answer: a
180. Which of the following is precision dividing head used in milling? a)
Plain dividing head
b) Universal dividing head
c) Optical dividing head
d) None of the mentioned
Answer: c
181. Circumference of a work piece is to be divided in 8 equal division using index plate of 24
slots. Indexing ratio is equal to a) 2
b) 3
c) 4
d) 6
Answer: b
182. Circumference of a work piece is to be divided in 10 equal division using an index plate of
550 slots. Indexing ratio is equal to

a) 2
b) 3
c) 5
d) 6
Answer: b
183. Circumference of a work piece is to be divided into 60 equal divisions using simple
indexing method having 40 worm wheel teeth. Indexing movement will be a) 12 holes on 18
hole circle
b) 16 holes on 18 hole circle
c) 12 holes on 21 hole circle
d) 16 holes on 21 hole circle
Answer: a
184. Circumference of a work piece is to be divided into 35 equal divisions using simple
indexing method having 40 worm wheel teeth. Indexing movement will be a) 3 holes on 18
hole circle
b) 16 holes on 18 hole circle
c) 3 holes on 21 hole circle
d) 16 holes on 21 hole circle
Answer: c
185. Circumference of a work piece is to be divided into 6 equal divisions using direct
indexing method. Indexing movement will be a) 5
b) 2
c) 3
d) 4
Answer: d
186. Circumference of a work piece is to be divided into 12 equal divisions using direct
indexing method. Indexing movement will be a) 5
b) 2
c) 3
d) 4
Answer: b
187. What will be the index movement to mill a hexagon head screw by using direct
indexing? a) 2
b) 3
c) 4
d) 6
Answer: c
188. Which one of the following is correct about compound indexing of 93 divisions? a) 28
holes in 21 circle forward and 28 holes in 31 circle backwards
b) 26 holes in 21 circle forward and 28 holes in 30 circle backwards
c) 28 holes in 21 circle forward and 28 holes in 30 circle backwards
d) None of the mentioned
Answer: a

GRINDING

189. Grinding wheel is specified as “A 46 K 5 B 17”. Grain size of a wheel will be a)

Coarse
b) Medium
c) Fine
d) Very Fine Answer: b.

190. Grinding wheel is specified as “C 8 K 5 B 17”. Grain size of a wheel will be a)

Coarse
b) Medium
c) Fine
d) Very Fine
Answer: a
191. Grinding wheel is specified as “A 600 K 5 B 17”. Grain size of a wheel will be
a) Coarse
b) Medium
c) Fine
d) Very Fine
Answer: d
192. Which of the following grinding wheel will have fine grain size?
a) A 46 K 5 B 17
b) C 600 K 5 B 17
c) C 8 K 5 B 17
d) A 80 K 5 B 17
Answer: d
193. Which of the following grinding wheel will have fine grain size?
a) A 46 K 5 B 17
b) C 600 K 5 B 17
c) C 8 K 5 B 17
d) A 80 K 5 B 17
Answer: c
194. Which of the following specified grinding wheel will have Aluminum oxide abrasive? a) Z
46 K 5 B 17
b) C 600 K 5 B 17
c) C 8 K 5 B 17
d) A 80 K 5 B 17
Answer: d
195. Which of the following specified grinding wheel will have Zirconia abrasive? a) Z
46 K 5 B 17
b) C 600 K 5 B 17
c) C 8 K 5 B 17
d) A 80 K 5 B 17
Answer: a
196. Which of the following specified grinding wheel will have Silicon carbide abrasive? a) Z
46 K 5 B 17

b) C 600 K 5 B 17
c) A 8 K 5 B 17
d) A 80 K 5 B 17
Answer: b
197. Operation done to make periphery of grinding wheel concentric with its axis to
recover its lost shape is known as a) Loading
b) Glazing
c) Dressing
d) Trueing
Answer: d
198. Removing dull grains in order to make grinding wheel sharp is known as a)
Loading
b) Glazing
c) Dressing
d) Trueing
Answer: c

199. Grain number of grinding wheel is ___ to grain size. a)

Directly proportional
b) Inversely proportional
c) Does not depend
d) None of the mentioned
Answer: b
2. Which of the following is a correct range for grain number of the grinding wheel for
coarse grains? a) 220-600
b) 80-180
c) 30-60
d) 10-24
Answer: d
200. Which of the following is the correct range for grain number of the grinding wheel for
medium grains? a) 220-600
b) 80-180
c) 30-60
d) 10-24
Answer: c
201. Which of the following is a correct range for grain number of the grinding wheel for fine
grains? a) 220-600
b) 80-180
c) 30-60
d) 10-24
Answer: b
202. Which of the following is the correct range for grain number of the grinding wheel for
very fine grains? a) 220-600
b) 80-180
c) 30-60
d) 10-24
Answer: a
203. Which of the following grinding machine will give a better result for rough machining? a)
Fine grain
b) Very fine grain
c) Coarse grain
d) None of the mentioned
Answer: c
204. Which of the following grinding machine will give a better result for finish machining
operation?
a) Fine grain
b) Medium grain
c) Coarse grain
d) None of the mentioned
Answer: c
205. Which of the following symbol’s range of alphabet represent soft grain in grinding wheel?
a) A – H
b) I – P
c) Q – T
d) T – Z
Answer: a
206. Which of the following symbol’s range of alphabet represent medium hardness grain in
grinding wheel? a) A – H
b) I – P
c) Q – T
d) T – Z
Answer: b
207. Which of the following symbol’s range of alphabet represent hard grain in grinding wheel?
a) D – H
b) I – P
c) A – D
d) Q – Z
Answer: a

208. Which of the following range of numbers represents dense structure of abrasives? a) 0-7
b) 8-10
c) 10-12
d) 12-16
Answer: a
209. Which of the following range of numbers represents open structure of abrasives? a) 0-3
b) 4-6
c) 8-16
d) None of the mentioned
Answer: c
210. Which of the following represents the correct symbol of vertified bond in a
specification of grinding wheel? a) V
b) R
c) B
d) S
Answer: a
211. Which of the following represents the correct symbol of rubber bond in a specification of
grinding wheel? a) V
b) R
c) B
d) S
Answer: b
212. Which of the following represents the correct symbol of Resin bond in a specification of
grinding wheel? a) V
b) R
c) B
d) S

Answer: b
213. Resin bond is also known a)
Vertified bond
b) Rubber bond
c) Silicate bond
d) Bakelite bond
Answer: d
214. Which of the following represents the correct symbol of Silicate bond in a specification of
grinding wheel? a) V
b) R

c) B
d) S
Answer: d
215. Which of the following represents the correct symbol of Shellac bond in a specification of
grinding wheel? a) V
b) P
c) B
d) S
Answer: b
216. Which of the following represents the correct symbol of epoxy bond in a specification of
grinding wheel? a) V
b) R
c) P
d) S
Answer: b
217. Which of the following will be better to use for machining of hard work piece? a) V-
bond
b) R-bond
c) Both V and R bond
d) None of the mentioned
Answer: a
SURFACE FINISHING OPERATIONS

218. Which of the following will be better to use for machining of soft work piece? a) V-
bond
b) R-bond
c) Both V and R bond
d) None of the mentioned
Answer: b

219. Which of the following grinding wheel would be more economical for grinding of hard
work piece?
a) Soft grinding wheel
b) Hard grinding wheel
c) Both hard and soft grinding wheel
d) None of the mentioned
Answer: a
220. Which of the following grinding wheel would be more economical for grinding of soft
work piece?
a) Soft grinding wheel
b) Hard grinding wheel
c) Both hard and soft grinding wheel
d) None of the mentioned
Answer: b
221. Which of the following grinding wheel would be more economical for grinding of hard
work piece?
a) Open structure grinding wheel
b) Dense structure wheel
c) Both dense and open structure grinding wheel
d) None of the mentioned
Answer: b
222. Which of the following grinding wheel would be more economical for grinding of soft
work piece?
a) Open structure grinding wheel
b) Dense structure wheel
c) Both dense and open structure grinding wheel
d) None of the mentioned
Answer: a
223. Material removal rate of grinding process in comparison to material removal rate in
facing on a lathe is a) Small
b) Large
c) Same
d) Can’t say about material removal rate
Answer: a
224. Material removal rate in grinding operation is small due to a)
Negative rake angle
b) Positive rake angle
c) Zero rake angle
d) Material removal rate does not depend on the rake angle
Answer: a
225. Material removal rate in grinding operation is small due to a)
Only small portion of abrasives are involved in cutting
b) Positive rake angle
c) Zero rake angle
d) Material removal rate does not depend on the rake angle
Answer: a
226. Material removal rate in grinding operation is small due to a)
Large portion of abrasives are involved in cutting
b) Positive rake angle
c) Due to temperature rise during grinding
d) Material removal rate does not depend on the rake angle
Answer: c
227. Grinding ratio generally lies between a)
0.5-10
b) 100-200
c) 1000-200
d) 30-40
Answer: a

228. Which of the following is a surface finishing operation? a)

Drilling
b) Honing
c) Milling
d) Turning Answer: b
229. Which of the following is a surface finishing operation? a)
Drilling
b) Lapping
c) Milling
d) Turning Answer: b
230. Which of the following process has the lowest cutting speed? a)
Drilling
b) Honing
c) Milling
d) Turning Answer: b
231. Which of the following process has the lowest cutting speed? a)
Slotting
b) Lapping
c) Milling
d) Reaming Answer: b 232. Which of the following process have the lowest metal removal rate?
a) Drilling
b) Reaming
c) Milling
d) Lapping Answer: b
233. Which of the following process have the lowest metal removal rate? a)
Drilling
b) Reaming
c) Milling
d) Honing
Answer: d
234. Which of the following is the correct grain size range of abrasive grains for honing stones?
a) 800 grit to 1000 grit
b) 5 grit to 10 grit
c) 50 grit to 60 grit
d) 80 grit to 600 grit
Answer: d
235. For practical honing conditions, cross hatch angle in degrees is generally taken in the range
of
a) 20 to 40
b) 40 to 50
c) 50 to 60
d) 10 to 15
Answer: a
236. During a honing process, reciprocating speed of honing tool was 9m/min with a rotary
speed of 25m/min. Cross hatch angle in degrees is equal to a) 40
b) 35
c) 30
d) 25
Answer: a
237. During a honing process, reciprocating speed of honing tool was 9m/min with a cross
hatch angle of 30 degree. Rotary speed in m/min is equal to a) 33.58
b) 35
c) 30
d) 25.23
Answer: a

INTERNAL MACHINING OPERATION

238. Producing circular hole in a solid metal by means of revolving tool is known as a)
Drilling
b) Reaming
c) Boring
d) Counter boring
Answer: a
239. Operation of finishing previously drilled hole in order to bring it to accurate size and have
good surface finish is known as a) Drilling
b) Reaming
c) Boring
d) Counter boring
Answer: b
240. Process of enlarging the hole size and enhancing its surface finish is known as a)
Drilling
b) Reaming
c) Boring
d) Counter boring
Answer: c
241. Process of enlarging only a small part of hole is also known as a)
Drilling
b) Reaming
c) Boring
d) Counter boring
Answer: d
242. Operation of enlarging the end of the hole to give conical shape at end is known as a)
Drilling
b) Reaming
c) Boring
d) Counter sinking
Answer: d
243. Operation used to form internal threads is known as a)
Drilling
b) Reaming
c) Boring
d) Tapping Answer: d
244. If ‘D’ is hole diameter, then general value for a compulsory approach for through hole can
be taken as a) 0.3*D
b) 0.1*D
c) 0.5*D
d) 0.8*D
Answer: c
245. If ‘D’ is hole diameter, then general value for a compulsory approach for blind hole can be
taken as a) 0.3*D
b) 0.1*D
c) 0.5*D
d) 0.8*D
Answer: a
246. If 20mm hole is needed to be drilled using a drill having semi point angle of 15
degrees. Value of compulsory approach in mm is a) 37.2
b) 45.3
c) 87.1
d) 13.3
Answer: a
247. If 20mm hole is needed to be drilled using a drill having point angle of 15 degrees.
Value of compulsory approach in mm is a) 37.2
b) 45.3
c) 75.95
d) 13.3
Answer: c