Quiz Questions

ITI Quiz - 24-May-2026 09:30 AM (ITISKILL9969YW)

Q-Paper A-Paper
Question 1 1 Marks
Which type of vice is used for marking of small jobs on the surface plate?
A
Pipe vice
B
Bench vice
C
Tool Makers vice
D
Quick releasing vice
Question 2 1 Marks
Calculate the change gear to cut 6 mm pitch on a work
having a lead screw of 5 mm pitch. Gears available
from 20 to 120 teeth by 5 teeth range.
A
Driver 60 driven 50
B
Driver 40 driven 20
C
Driver 85 teeth driven 60 teeth
D
Driver 100 teeth driven 25 teeth
Question 3 1 Marks
Which mode the program will be executed
continuously one block after another block?
A
Jog mode
B
Auto mode
C
Edit mode
D
Manual mode
Question 4 1 Marks
Which code is suitable for tool nose radius
compensation at right side?
A
G50
B
G42
C
G40
D
G41
Question 5 1 Marks
Which material used for manufacturing a marking
table?
A
Cast iron
B
Aluminium
C
Tool steel
D
Mild steel
Question 6 1 Marks
What is the nose cutter width of the square threads tool?
A
0.5 x Pitch
B
equal to pitch
C
Pitch / 0.5
D
2 x Pitch
Question 7 1 Marks
What is the material of files?
A
Cast iron
B
Mild steel
C
Low alloy steel
D
High carbon steel
Question 8 1 Marks
Which angle determines the rake angle at the cutting edge of twist drill?
A
Wedge angle
B
Helix angle
C
Point angle
D
Clearance angle
Question 9 1 Marks
What is the advantage of follower steady rest over fixed steady rest?
A
Support at fixed place of work
B
Support continuous entire length of work
C
It rotate with the work
D
It rotate and moves along the work
Question 10 1 Marks
Which lap material inexpensive and can be expanded
if worn out?
A
Brass
B
Cast Iron
C
Lead
D
Bronze
Question 11 1 Marks
What is the specification for shape of file?
A
Cut
B
Grades
C
Length
D
Cross section
Question 12 1 Marks
Which one of the below accessory has provided U slot?
A
Face plate
B
Angle plate
C
Catch plate
D
Driving plate
Question 13 1 Marks
What is the activity of code M06 based on FANUC
CNC control system?
A
End of the program with rewind
B
Spindle rotation in counter clockwise direction
C
The cutting tool has to be changed
D
Switch of the coolant pump
Question 14 1 Marks
What is the roughness value of grade No N:12?
A
50 microns
B
25 microns
C
12.5 microns
D
0.1 microns
Question 15 1 Marks
Which mode is used for five positioning (Micron level)
of the axis movement?
A
Auto mode
B
Incremental Jog mode
C
MDI mode
D
Edit mode
Question 16 1 Marks
Which formula is used to find crest width of a buttress thread?
A
0.125 x pitch
B
0.317 x pitch
C
0.335 x pitch
D
0.5 x pitch
Question 17 1 Marks
What is the term the distance moved by the tool along
the work for each revolution?
A
Speed
B
Feed
C
Cutting speed
D
Depth
Question 18 1 Marks
Which thread is more suitable to hold the tool maker button
in position?
A
4BA thread
B
5BA thread
C
6BA thread
D
7BA thread
Question 19 1 Marks
Where the follower is fixed to produce from turning?
A
Tool part
B
Top slide
C
Cross slide
D
Tail stook
Question 20 1 Marks
In Which case hardening process the ammonia gas is introduced?
A
Cyaniding
B
Gas nitriding
C
Carburizing
D
Induction hardening
Question 21 1 Marks
How many speed will obtained from a 3 stepped cone pulley headstock of lathe with back gear arrangement?
A
3
B
4
C
5
D
6
Question 22 1 Marks
What is the roughnes value of grade No N1?
A
6.3 microns
B
0.025 microns
C
12.5 microns
D
0.4 microns
Question 23 1 Marks
What is the gear ratio if the lathe constant value is
one?
A
One
B
Two
C
Three
D
Six
Question 24 1 Marks
What is the angle between the adjustable jaws of a three jaw chuck?
A
90 Degree
B
118 Degree
C
119 Degree
D
120 Degree
Question 25 1 Marks
What is the term the distance from a point on thread to the corresponding point on next thread?
A
Depth
B
Effective diameter
C
Pitch
D
Minor diameter
Question 26 1 Marks
What is the tool life index of cemented carbide tool for
turning high carbon high chromium die steel?
A
0.15
B
0.2
C
0.4
D
0.35
Question 27 1 Marks
What will be the effect in helix angle if lead
changes for a give diameter work?
A
Lead decreases helix angle increases
B
Lead decreases helix angle decreases
C
Helix angle have no change when lead decreases
D
Helix angle have no change when lead increases
Question 28 1 Marks
What factor is important in free hand form turning?
A
Unskilled labour
B
Skilled labour
C
Sharp tool
D
High speed
Question 29 1 Marks
What do you mean by MPG?
A
Manual Program Graphics
B
Manually Pulse Generator
C
Manual Procedure to Calculate Geometrical Values
D
Manually Procure the Digital Graphics
Question 30 1 Marks
Which one is example of ferrous tool material?
A
High carbon steel
B
Carbide tool
C
Stellite
D
Diamonds
Question 31 1 Marks
Which one of the following CNC control systems are used on CNC machines?
A
Siemens and FANUC
B
Adobe reader and Microsoft
C
Excel and MS power point
D
MS office only
Question 32 1 Marks
What type of taper provided on the shank of lathe center?
A
Jarno
B
Morse
C
Metric
D
Brown & sharp
Question 33 1 Marks
Where the taper threads are used?
A
Bolt
B
Wood screw
C
Stud
D
Nut
Question 34 1 Marks
Which one of the following is possible in edit mode?
A
Can read only the program
B
Simulation of the program
C
Execute the program
D
Preparation of new programmable Data and correction / Alteration of an earlier program
Question 35 1 Marks
What is the standard colour code used for identifying the bin for the metal waste material?
A
Red
B
Blue
C
Green
D
Violet
Question 36 1 Marks
What is the least count of inside micrometer - metric?
A
0.1 mm
B
0.01 mm
C
0.001 mm
D
0.02 mm
Question 37 1 Marks
What is the body material of bench vice?
A
Cast iron
B
Mild steel
C
Wrought iron
D
Hardened steel
Question 38 1 Marks
How the roughness value is expressed?
A
Micrometer
B
Millimetre
C
Centimetre
D
Metre
Question 39 1 Marks
Which parameter will decide the driver and driven gear
ratio to cut thread on lathe?
A
Major dia of work
B
Pitch
C
Root dia of work
D
Angle of thread
Question 40 1 Marks
What is the correct sequence of the operation of a simple fire extinguisher?
A
Pull, Aim squeeze & sweep
B
Aim pull sweep and squeeze
C
Squeeze aim pull and sweep
D
Sweep Aim pull and squeeze
Question 41 1 Marks
Which heat treatment process is used to reduce internal stresses of a hardened tool?
A
Stabilizing
B
Annealing
C
Normalizing
D
Tempering
Question 42 1 Marks
How much percentage of cutting speed could be
increased by using super HSS tools?
A
5% to 10%
B
10% to 15%
C
15% to 20%
D
20% to 25%
Question 43 1 Marks
Which type of vice has a trigger for opening the movable jaw?
A
Pin vice
B
Pipe vice
C
Bench vice
D
Quick releasing vice
Question 44 1 Marks
What is the name of gauge used to check the radius
A
Radius gauge
B
Fillet gauge
C
Plug gauge
D
Feeler gauge
Question 45 1 Marks
Which part of centre lathe make angular movement?
A
Saddle
B
Top slide
C
Cross slide
D
Compound slide
Question 46 1 Marks
Which is four jaw chuck?
A
Self centring chuck
B
Independent chuck
C
Self aligning chuck
D
Collect chuck
Question 47 1 Marks
Which of the following feed back devices can sense
both speed and position?
A
Resolver
B
Tachometer
C
Encoder
D
Motor
Question 48 1 Marks
What is the purpose of MDI mode?
A
For program execution
B
Move the axes by manually
C
Cross checking of the program graphically
D
Editing of programmable Data
Question 49 1 Marks
Which is the blank size M10 x1.5mm of external thread?
A
10.85mm
B
9.85mm
C
9.75mm
D
9.65mm
Question 50 1 Marks
What is the preheating temperature of steel?
A
Upto 400 Degree Centigrade
B
Upto 500 Degree Centigrade
C
Upto 600 Degree Centigrade
D
Upto 300 Degree Centigrade
Question 51 1 Marks
What is the relationship between pitch and lead of a single start thread?
A
Lead is twice the pitch
B
Lead is half the pitch
C
Lead is equal to pitch
D
Lead is 1/4 pitch
Question 52 1 Marks
How is the minor diameter of external thread checked
generally?
A
Using pitch gauge
B
Using knife edge of vernier caliper
C
Using screw thread gauge
D
Using thread ring gauge
Question 53 1 Marks
Which code is suitable for multiple turning cycle in
FANUC CNC control system?
A
G71
B
G92
C
G96
D
G94
Question 54 1 Marks
Which lapping material used for easy charging and
rapid cutting?
A
Cast iron
B
Copper and brass
C
Close grained iron
D
White cast iron
Question 55 1 Marks
Where the milling attachment is mounted in centre lathe?
A
Cross - slide
B
Compound rest
C
Tailstock
D
Rear tool post
Question 56 1 Marks
Which work holding method is to be used if, high degree of concentricity is needed?
A
Face plate
B
Four jaw chuck
C
Three jaw chuck
D
In between centres
Question 57 1 Marks
Which file is used for filing surfaces at right angle on already finished surface?
A
Flat file
B
Needle file
C
Safe edge file
D
Curved cut file
Question 58 1 Marks
Which mode is used to edit the program?
A
Jog mode
B
Edit mode
C
MDI mode
D
Auto mode
Question 59 1 Marks
How the part programming mistakes can be avoided?
A
NC (Numerical control) machine only
B
CNC (Computer numerical control) machine only
C
Both NC and CNC machine
D
Cannot be avoided in CNC machine
Question 60 1 Marks
Which heat process is increase the toughness and decrease the brittleness?
A
Annealing
B
Normalizing
C
Tempering
D
Case hardening
Question 61 1 Marks
Why the ball centre is used in taper turning by offset method?
A
Minimum wear and strain
B
Minimum friction
C
Economical
D
Easy setting
Question 62 1 Marks
What is the purpose of idler gear in simple gear train?
A
Reduce gear ratio
B
Transmit power between driver and driven gears
C
Reduce spindle speed
D
Increase spindle speed
Question 63 1 Marks
Which one of the following heat treatment process produces a scale free surface on the components?
A
Flame hardening
B
Case hardening
C
Nitriding
D
Induction hardening
Question 64 1 Marks
Encodor is used in CNC machine tool to sense and
control?
A
Spindle speed
B
Spindle position
C
Table position
D
Work position
Question 65 1 Marks
What will be the effect in helix angle if diameter
changes for a given lead?
A
Diameters decreases helix angle increases
B
Diameters decreases helix angle decreases
C
No change in helix angle if diameter increases
D
No change in helix angle diameter decreases
Question 66 1 Marks
Where the knuckle threads are used?
A
Screw jack
B
Carpentry vice
C
Railway carriage couplings
D
Dead screw of lathe
Question 67 1 Marks
What is the angle of BSW thread?
A
60 Degree
B
55 Degree
C
29 Degree
D
45 Degree
Question 68 1 Marks
What is the purpose of preventive maintenance?
A
Maintain machine in good working order
B
Increase the cost of inspection
C
Reduce the vibration of machine
D
To keep the maintenance records
Question 69 1 Marks
What is the purpose of G28 code based on FANUC
CNC control system?
A
Tool has return to reference point
B
Tool has to return from reference point
C
Circular interpolation clockwise
D
Circular interpolation counter clockwise
Question 70 1 Marks
Which of the following property of metal is impart by annealing?
A
Hardness
B
Toughness
C
Ductility
D
Surface hardness
Question 71 1 Marks
Which grade of file is used for heavy reduction of material?
A
Smooth file
B
Bastard file
C
Second cut file
D
Dead smooth file
Question 72 1 Marks
What type of thread is used in screw jack machine?
A
Acme thread
B
Square thread
C
Buttress thread
D
V-thread
Question 73 1 Marks
Which material is used to make the tool maker's button?
A
Hardened steel
B
Tool steel
C
Cast steel
D
Stainless steel
Question 74 1 Marks
What is the advantage of roller steady rest over fixed rest?
A
It can fixed on saddle
B
Easy to rotate the work
C
It rotates and moves along the work
D
It can fixed on tool post
Question 75 1 Marks
What is the type of fit if minimum size of hole is larger than maximum size of shaft?
A
Clearance
B
Interferance
C
Transition
D
Force
Question 76 1 Marks
Which deviation is zero in shfrt basis system?
A
Upper devication is zero
B
Lower deviation is zero
C
Both upper and lower deviation is zero
D
Both upper and lower deviation is below basic size
Question 77 1 Marks
Which portion of a hammer head is not hardened or left soft?
A
Face
B
Pein
C
Cheek
D
Cross pein
Question 78 1 Marks
What is the recommended cutting speed for turning mild steel using H.S.S tool?
A
25-40 m/min
B
35-70 m/min
C
40-70 m/min
D
35-50 m/min
Question 79 1 Marks
A CNC machine tool has a continuous part control
both linear and circular along x,y,z and control of
table rotation about x axis and z axis, so the machine
should be called?
A
2C, L
B
3L,2C
C
5C
D
2L, 2C
Question 80 1 Marks
What is the representation of zero line in limit and fits?
A
Basic size
B
Actual size
C
Nominal size
D
Tolerance size
Question 81 1 Marks
Which type of jig is used to hold thin and soft parts?
A
Plat jig
B
Channel jig
C
Sandwich jig
D
Trunnion jig
Question 82 1 Marks
Which device is used as a reference surface for
marking?
A
Plate angle
B
Marking table
C
Anvil surface
D
Lathe bed
Question 83 1 Marks
What is the minimum size of bore that can be checked with
telescopic gauge?
A
12.7 mm
B
13.7 mm
C
19.00 mm
D
31.7 mm
Question 84 1 Marks
How many adjusting bearing pad in fixed steady rest?
A
Two
B
Three
C
Four
D
Five
Question 85 1 Marks
What is an accuracy of an independent four chuck in metric system?
A
0.001mm
B
0.002mm
C
0.01mm
D
0.02mm
Question 86 1 Marks
Which safety practice refers, Do not wear the ring?
A
Road safety
B
General safety
C
Machine safety
D
Personal safety
Question 87 1 Marks
What is the effect, if the cutting speed is more than the
recommanded?
A
Reduce the tool life
B
Better finish
C
Accurate dimension
D
Normal tool life
Question 88 1 Marks
Which material is used to make radius gauge?
A
Cast steel
B
Tool steel
C
Hardened steel
D
Stainless steel
Question 89 1 Marks
What is the formula for metric thread depth?
A
0.5 x pitch
B
0.6134 x pitch
C
0.6403 x pitch
D
0.75 x pitch
Question 90 1 Marks
Which part of screw rod of 4 jaw chuck permits the screws to rotate but not to advance?
A
Pinion
B
Finger pin
C
Taper pin
D
Locating pin
Question 91 1 Marks
Which gas is used in Halon extinguisher?
A
Hydrogen
B
Carbon dioxide
C
Carbon monoxide
D
Carbon tetrachloride
Question 92 1 Marks
Calculate the spindle speed to turn a 40mm dia M.S rod
using a cemented carbide tool it cutting speed is
92mm/min?
A
508 rpm
B
685 rpm
C
731 rpm
D
950 rpm
Question 93 1 Marks
What is the length a spacing collar used in inside micrometer?
A
12 mm
B
13 mm
C
25 mm
D
38 mm
Question 94 1 Marks
What is lapping?
A
Precision finishing operation
B
Filing operation
C
Grinding operation
D
Chiseling operation
Question 95 1 Marks
Which of the following structures of steel is obtained due to the drastic cooling form the austenite structure?
A
Pearlite
B
Cementite
C
Martensite
D
Ferrite
Question 96 1 Marks
Which is used to prevent concentration of abrasives on lapping surface?
A
Vehicle
B
Holder
C
Absorber
D
Retainer
Question 97 1 Marks
How many number of teeth gear is used to as translating gear to cut metric thread on British lathe?
A
100
B
127
C
140
D
135
Question 98 1 Marks
Which grade of angle plate are more accuracy and
used for tool room work?
A
Grade 1
B
Grade 2
C
Grade 3
D
Grade 4
Question 99 1 Marks
Which is the cheapest tool material?
A
High carbon steel
B
High speed steel
C
Carbide
D
Diamonds
Question 100 1 Marks
Which type of instrument is generally used to check
eccentricity?
A
Dial test indicator
B
Micrometer
C
Surface gauge
D
Vernier calipers
Question 101 1 Marks
Calculate the pitch diameter of M 64 x 6 mm square thread?
A
58 mm
B
60 mm
C
61 mm
D
62 mm
Question 102 1 Marks
What is the value of tool life index for a cemented
carbide tip to machine cast iron component?
A
0.1
B
0.125
C
0.2
D
0.128
Question 103 1 Marks
Which type of jig locates the piece part from its face?
A
Plate jig
B
Post jig
C
Table jig
D
Solid jig
Question 104 1 Marks
Which point in any CNC machine the position measuring systems has a starting point to each axis?
A
Work zero
B
Tool geometrical value
C
Machine zero
D
Reference mode
Question 105 1 Marks
Which work holding device of lathe is require to balance for irregular job?
A
Face plate
B
Catch plate
C
3 Jaw chuck
D
Four Jaw chuck
Question 106 1 Marks
What is the material of jaws of 3 jaw chuck?
A
Cast iron
B
Alloy steel
C
High carbon steel
D
Medium carbon steel
Question 107 1 Marks
What is the point angle of cold chisel to cut aluminium?
A
30 Degree
B
45 Degree
C
55 Degree
D
60 Degree
Question 108 1 Marks
Calculate pitch diameter of f 24 x 3 mm square thread?
A
21 mm
B
21.5 mm
C
22.5 mm
D
24 mm
Question 109 1 Marks
What is the recommended feed rate for turning cast iron
(grey) using H.S.S tool?
A
0.08-0.03 mm/rev
B
0.2-1.00 mm/rev
C
0.2-1.5 mm/rev
D
0.15-0.7 mm/rev
Question 110 1 Marks
What is the types of fit for the expression 20H7/g6?
A
Interference fit
B
Clearance fit
C
Trasition fit
D
Force fit
Question 111 1 Marks
Which part of the lathe gives perpendicular movement to the tool?
A
Apron
B
Tailstock
C
Carriages
D
Cross slide
Question 112 1 Marks
Which one is the cause for hazard in personal safety?
A
Long hair
B
Safety boots
C
Buttons fastened
D
Sleeve tightly rolled
Question 113 1 Marks
Which gauge is used to position the cutter before
cutting in milling fixture?
A
Feeler gauge
B
Radius gauge
C
Fillet gauge
D
Screw pitch gauge
Question 114 1 Marks
What is the formula used to find flat width of a buttress thread?
A
Pitch/2
B
Pitch/3
C
Pitch/4
D
Pitch/8
Question 115 1 Marks
What is angle between the two faces of angle plate?
A
30 Degree
B
45 Degree
C
60 Degree
D
90 Degree
Question 116 1 Marks
How multi start threads are specified?
A
By stating dia and pitch
B
By stating dia and angle of thread
C
By stating core dia and pitch
D
By stating dia, pitch, and no. of start
Question 117 1 Marks
What are the possible surface that can be produced by
form turning?
A
To generating concave and convex profile
B
To generating cylindrical surface
C
To generate conical surface
D
To generate flat surface
Question 118 1 Marks
What is the use of CNC code of M05 to develop the command?
A
The spindle rotation has to stop
B
The cutting tool has to be changed
C
Tool returns from reference point to work place
D
Rewind the program once again
Question 119 1 Marks
Which G-code is suitable for thread cutting?
A
G30
B
G32
C
G34
D
G01
Question 120 1 Marks
Which of the following used buttress thread?
A
Screw jack
B
Lead screw of lathe
C
Carpentry vice
D
General purpose nut and bolt
Question 121 1 Marks
Which one of the below is a work holding device?
A
Catch plate
B
Face plate
C
Driving plate
D
Four jaw chuck
Question 122 1 Marks
Why lapping tools are provided groove?
A
Expansion
B
For accommodate lapping compound
C
Clearance
D
Prevent damage to tool
Question 123 1 Marks
Which material in used to make back plate of a three jaw chuck?
A
Cast steel
B
Cast iron
C
Alloy steel
D
Wrought iron
Question 124 1 Marks
What is the type of fit for the expression Fit 25H7/p6?
A
Interference fit
B
Clearance fit
C
Trasition fit
D
Running fit
Question 125 1 Marks
What is the use of Goo activates the command?
A
Linear interpolation
B
Rapid traverse
C
Tool returns from reference point
D
Return to reference point
Question 126 1 Marks
Which surface is finished by honing?
A
External cylindrical surface
B
Internal cylindrical surface
C
Both external and internal surface
D
Flat surface
Question 127 1 Marks
Which work holding device is used to hold irregular shaped work?
A
4 Jaw chuck
B
3 Jaw chuck
C
Face Plate
D
Catch plate
Question 128 1 Marks
How may roughness grade number are used?
A
N1 to N12
B
N1 to N25
C
N1 to N20
D
N1 to N30
Question 129 1 Marks
Where the grinding attachment is mounted in centre lathe?
A
Rear tool post
B
Compound rest
C
Tailstock
D
Lathe bed
Question 130 1 Marks
What are the standard diameters of tool maker's button?
A
2mm, 4mm, 6mm
B
8mm, 10mm, 12mm
C
14mm, 16mm, 18mm
D
20mm, 22mm, 24mm
Question 131 1 Marks
Which thread has only one helical formation?
A
Single start
B
Double start
C
Triple start
D
Quadrapple
Question 132 1 Marks
Which is the internal part of a bench vice?
A
Handle
B
Box nut
C
Fixed jaw
D
Movable jaw
Question 133 1 Marks
Which type of thread cut on the screw shaft of an independent chuck?
A
Left hand V thread
B
Right hand V thread
C
Left hand square
D
Left hand acme thread
Question 134 1 Marks
What is the normal lip clearance angle for standard drill?
A
2 Degree- 4 Degree
B
5 Degree - 7 Degree
C
8 Degree - 12 Degree
D
13 Degree - 16 Degree
Question 135 1 Marks
How many ways CNC machine tool systems can be
classified?
A
2
B
3
C
4
D
5
Question 136 1 Marks
Which M code is used to activate coolant pump in
CNC machine?
A
M01
B
M06
C
M08
D
M09
Question 137 1 Marks
Which type of tap wrench is used to minimise the damage of taps?
A
Bar type tap wrench
B
Solid type tap wrench
C
Double ended tap wrench
D
T handle type tap wrench
Question 138 1 Marks
Which material used for manufacturing crown wheel of a three jaw chuck?
A
Alloy steel
B
Cast iron
C
High carbon steel
D
Chrome vanadium steel
Question 139 1 Marks
Which part of a lathe is used to catch thread
quickly?
A
Tool post
B
Top slide
C
Chasing dial
D
Cross - slide
Question 140 1 Marks
What is the purpose of Square thread?
A
To transmit power
B
To make adjustment
C
General fastening
D
For clamping
Question 141 1 Marks
Which letter represents basic hole?
A
h
B
H
C
Bh
D
BH
Question 142 1 Marks
What is the use of gap bed lathe?
A
To turn larger diameter work
B
To turn small diameter work
C
To turn irregular shaped work
D
To turn lengthy work
Question 143 1 Marks
What is the representation IT in limits and fits?
A
Tolerance
B
Tolerance grade
C
Tolerance unit
D
Tolerance number
Question 144 1 Marks
What is the ratio between the pitch diameter and number of teeth of gear?
A
Tooth thickness
B
Module
C
Dedendum
D
Addendum
Question 145 1 Marks
Which type of tool is suitable to produce form surface in
mass production activities?
A
Using carbide tipped form tool
B
High carbon steel tool
C
High speed steel cutting tool
D
Using single point cutting tool
Question 146 1 Marks
How we can protect the surface of marking table to maintain accuracy?
A
By providing a guard
B
Providing plastic coating
C
By applying thin layers of oil
D
Provide a stand
Question 147 1 Marks
Which angle plate is used to support jobs in different
angles?
A
Box type
B
Plain type
C
Slotted type
D
Adjustable type
Question 148 1 Marks
Calculated the rpm of spindle if cutting speed ?V? is
120m/min and the diameter ?D? of the job is 50 mm?
A
500 rpm
B
764 rpm
C
856 rpm
D
975 rpm
Question 149 1 Marks
What will happen to the tool life if the spindle is running
higher speed?
A
Less
B
More
C
Medium
D
Very less
Question 150 1 Marks
What is the advantage of maintenance records?
A
Reduce the clerical work
B
Monitor the frequent breakdown
C
Increase the cost of production
D
Zero breakdown maintenance
Question 151 1 Marks
Which is used to mark the center of a round rod?
A
Divider
B
Jenny caliper
C
Inside caliper
D
Outside caliper
Question 152 1 Marks
Which axis is parallel to Z - axis?
A
X - axis
B
Spindle axis
C
Tool axis
D
Y-axis
Question 153 1 Marks
What is 'L' in tailstock offset method?
A
Length of the taper
B
Length of the job
C
Amount taper
D
Length of offset
Question 154 1 Marks
What is the disadvantage of fixed steady rest over follower
steady rest?
A
Support at one fixed place only
B
Support continuous entire length
C
It rotate with the job
D
It rotate and moves along the work
Question 155 1 Marks
How can the unexpected breakdowns of machines
reduced?
A
By preventive maintenance
B
By break down maintenance
C
By productive maintenance
D
By quality maintenance
Question 156 1 Marks
What is the depth of 0.5 inch BSW 13TPI single start thread?
A
0.025"
B
0.038"
C
0.049"
D
0.082"
Question 157 1 Marks
Which mode execute thet program continuosly one
block after another block?
A
Jog mode
B
Edit mode
C
MPG mode
D
Auto mode
Question 158 1 Marks
What heat treatment process the nitriding comes under?
A
Hardening
B
Case hardening
C
Tempering
D
Normalizing
Question 159 1 Marks
What is the full form of MDI?
A
Mechanical Data Implantation
B
Manually Data Input
C
Moderated Data input
D
Mounting of Diagonal Impact
Question 160 1 Marks
How does periodic inspection of the machines and equipments is carried out in preventive maintenance?
A
As per checklist
B
As per the knowledge of trainee
C
As per the knowledge of instructor
D
As per the knowledge of manager
Question 161 1 Marks
Which one of the code is used to rewind the
program?
A
M38
B
M30
C
M39
D
M40
Question 162 1 Marks
What is the purpose of back gear unit in cone pulley headstock of a lathe?
A
For helping step turning
B
To double the spindle speed
C
To get increased spindle speed
D
To get reduced spindle speed
Question 163 1 Marks
Where will be using the angle plate and counter weight?
A
Face plate
B
Catch plate
C
Driving plate
D
Four jaw chuck
Question 164 1 Marks
Why heat treatment of metal is necessary?
A
To produce certain desired properties
B
To make good appearance on the component
C
To increase strength of the metal
D
To make the metal rust-proof
Question 165 1 Marks
What is the name of precision finishing operation
carried out by using fine abrasive materials?
A
Grinding
B
Lapping
C
Filing
D
Polishing
Question 166 1 Marks
Calculate pitch diameter of M16 x 2 mm square thread?
A
14 mm
B
15 mm
C
15.5 mm
D
16 mm
Question 167 1 Marks
Which is the operation in point to point system used?
A
Drilling
B
Parting
C
Grooving
D
Facing
Question 168 1 Marks
Which one of the following code is suitable for rapid
traverse?
A
G00
B
G02
C
G03
D
G04
Question 169 1 Marks
Which accessory is used in between centre work?
A
Face plate
B
Catch plate
C
Three chuck
D
Four jaw chuck
Question 170 1 Marks
Which type taper is provided at the hollow end of the tailstock barrel/spindle?
A
Jarno taper
B
Morse taper
C
Metric taper
D
Brown & sharpe taper
Question 171 1 Marks
Which is a non-metallic tool material?
A
High carbon steel
B
Diamonds
C
Stellite
D
Carbide
Question 172 1 Marks
What is the included angle of prick punch used for marking light punch marks needed to position dividers?
A
30 Degree
B
45 Degree
C
60 Degree
D
90 Degree
Question 173 1 Marks
What is the name of the pattern of work surface caused by the movement of cutting tool?
A
Surface texture
B
Roughness
C
Roughness facing
D
Waviness
Question 174 1 Marks
Calculate the depth of buttress thread diameter 30 mm pitch 3 mm?
A
1.25 mm
B
1.5 mm
C
2.25 mm
D
3.00 mm
Question 175 1 Marks
What is the included angle of center punch?
A
30 Degree
B
45 Degree
C
60 Degree
D
90 Degree
Question 176 1 Marks
What is the shape of buttress thread flank?
A
One flank is 90 Degree and the other 45 Degree
B
One flank is 30 Degree and the other 45 Degree
C
One flank is 60 Degree and the other 45 Degree
D
Two flanks are at 60 Degree
Question 177 1 Marks
What do you mean by simulation?
A
Cross checking of programmable DATA
B
Finding out of work offset values
C
Finding out of tool geometrical values
D
Editing of related part program
Question 178 1 Marks
Which gauge is generally used to check internal threads?
A
Thread ring gauge
B
Thread calliper gauge
C
Thread plug gauge
D
Thread snap gauge
Question 179 1 Marks
Calculate the pitch diameter of M 36 x 4 mm square thread?
A
32 mm
B
33 mm
C
34 mm
D
35 mm
Question 180 1 Marks
What is the use of roller steady rest?
A
To support the job and travel along job
B
To support long slender work
C
To support long thin and thick rod
D
To support irregular job
Question 181 1 Marks
Which jaw of 3 jaw chuck is used to hold hollow job?
A
Movable jaw
B
Fixed jaw
C
External jaw
D
Internal jaw
Question 182 1 Marks
What is the recommended cutting speed for aluminium using H.S.S tool?
A
70 m/min - 100 m/min
B
50 m/min - 80 m/min
C
35 m/min - 50 m/min
D
25 m/min - 40 m/min
Question 183 1 Marks
Where the driver pin is used?
A
Driving plate
B
Catch plate
C
Angle plate
D
Face plate
Question 184 1 Marks
Which type of thread is used in lathe head screw?
A
Acme thread
B
Buttress thread
C
Knuckle thread
D
Square thread
Question 185 1 Marks
In Which mode we can input the program command
manually?
A
Auto mode
B
Jog mode
C
MDI mode
D
Edit mode
Question 186 1 Marks
Find out the R.P.M of spindle for a 50mm bar (D) and
cutting speed is 25m/min.
A
100rpm
B
159rpm
C
168rpm
D
250rpm
Question 187 1 Marks
Calculate the minor diameter of M 20 x 2.5 pitch thread?
A
15.933
B
16.933
C
17.933
D
18.933
Question 188 1 Marks
What is the purpose of change gear train in centre lathe?
A
Connecting spindle gear to fixed stud gear
B
Connecting fixed stud gear to quick change gear box
C
Connecting quick change gear box to lead screw
D
Connecting lead screw to changing dial
Question 189 1 Marks
What is the name of first member in a simple gear
train?
A
Driven
B
Driver
C
Idler
D
Reverible gear
Question 190 1 Marks
What is the main use of using tool maker's button for face boring?
A
Easy to use
B
Unskilled labour can do
C
Truing is not necessary
D
Easy to set square to the axis of rotation
Question 191 1 Marks
Calculate the depth of buttress thread 60 mm diameter and 9 mm pitch?
A
4.75 mm
B
5.75 mm
C
6.75 mm
D
7.75 mm
Question 192 1 Marks
Which one of the program block may suitable to
move the cutting tool 'x' axis 42.0 'z' axis 0.0 with the
feed of 0.1 mm?
A
G00 x 42.0 z 0.0 F 0.1;
B
G02 x 42.0 z 0.0 F 0.1;
C
G01 x 42.0 z 0.0 F 0.1;
D
G03 x 42.0 z 0.0 F 0.1;
Question 193 1 Marks
What does the letter Y stands in the formula d = Y ?
2 (s+r) in taper measurement?
A
Diameter over rollers at small end
B
Diameter over rollers at big end
C
Radius of the roller
D
Distance from the centre of the roller to the end of the component
Question 194 1 Marks
Which type of chisel is used for squaring materials at the corners and joints?
A
Web chisel
B
Flat chisel
C
Cross cut chisel
D
Diamond point chisel
Question 195 1 Marks
What is the purpose of square slot provided on the top of the pinion of a 3 jaw chuck is?
A
To set chuck on machine
B
To set the back plate on the machine
C
To accommodate the chuck key
D
To set the body of the chuck in spindle
Question 196 1 Marks
Which mode is used for moving the turret in X and Z
direction?
A
Jog mode
B
Edit mode
C
Auto mode
D
MDI mode
Question 197 1 Marks
Which type of chisel is used to cut key ways?
A
Flat chisel
B
Cross cut chisel
C
Diamond point chisel
D
Half round nose chisel
Question 198 1 Marks
What does Sq 60 x 9 IS 4694-1968 means?
A
Square Thread 60 mm dia, 9 mm pitch
B
Buttress thread 60 mm dia x 9 mm pitch
C
Acme thread 60 mm dia x 9 mm pitch
D
Worm thread 60 mm dia x 9 mm pitch
Question 199 1 Marks
What is the name of the centre accommodates in the main spindle sleeve?
A
Dead centre
B
Half centre
C
Pipe centre
D
Live centre
Question 200 1 Marks
What is the use of inside micrometer?
A
To measure the depth of hole
B
Measuring keyways and small slots
C
Measuring the external surface
D
Determine the distance between internal parallel surface
Question 201 1 Marks
Which formula is used to find root width of a buttress thread?
A
0.125 x pitch
B
0.317 x pitch
C
0.335 x pitch
D
0.5 x pitch
Question 202 1 Marks
Which metal is to be case hardened?
A
High carbon steel
B
Cast iron (heavy parts)
C
Low carbon steel parts
D
Alloy steel parts
Question 203 1 Marks
What is the heating temperature in gas nitriding process?
A
Up 200 Degree Celsius
B
Up 300 Degree Celsius
C
Up 400 Degree Celsius
D
Up 500 Degree Celsius
Question 204 1 Marks
Which lathe part is used to mount the dial indicator for
truing the bore?
A
Tail stock
B
Cross side
C
Tool post
D
Lathe bed
Question 205 1 Marks
What is the included angle of acme thread?
A
55 Degree
B
45 Degree
C
30 Degree
D
29 Degree
Question 206 1 Marks
Find the lead of a 2 start thread having pitch 1.5
mm?
A
1.50 mm
B
3.00 mm
C
4.50 mm
D
6.00 mm
Question 207 1 Marks
Which victim has given CPR immediately?
A
Difficulty in breathing
B
Severe head injury
C
Severe blood loss
D
Dehydration
Question 208 1 Marks
What is the use of drive pin in drive plate?
A
Hold the job
B
To rotate the job
C
To turn the job
D
To locate the job
Question 209 1 Marks
Which part is assembled in compound rest other than compound slide?
A
Swivel base
B
Cross slide
C
Saddle
D
Apron
Question 210 1 Marks
How many fundamental deviations are recommended by BIS?
A
25
B
24
C
20
D
30
Question 211 1 Marks
What is direction of finishing in surface texture?
A
Flaw
B
Lay
C
Waviness
D
Roughness
Question 212 1 Marks
Which method of multi-start thread cutting is depends upon the graduations marked on the dial and the number of teeth in worm wheel?
A
Thread chasing dial method
B
Method by moving the top slide
C
Method using slotted face plate
D
Dividing the first drive method
Question 213 1 Marks
Which gauge is used to check the radius formed at the
steps of component?
A
Fillet gauge
B
Radius gauge
C
Feeler gauge
D
Plug gauge
Question 214 1 Marks
Which punch is used for locating center of the hole?
A
Dot punch
B
Prick punch
C
Center punch
D
Hollow Punch
Question 215 1 Marks
What defect may occur during grinding a form tool cutting edge?
A
Form tool getting broken
B
Shape of the form gets altered
C
Clearance angle changed
D
Thickness of the tool reduced
Question 216 1 Marks
Which material is used to make the stylus of mechanical surface indicator?
A
Mild steel
B
High carbon steel
C
High speed steel
D
Diamond
Question 217 1 Marks
What is the swing over bed?
A
Perpendicular distance from lathe and to the carriage
B
Perpendicular distance from lathe axis to top of bed
C
Distance between centres
D
Length of the bed
Question 218 1 Marks
What is the indication of 'z' axis in CNC lathe
machine?
A
The length of the component
B
The centre axis of the component
C
The radius of the component
D
The diameter of the component
Question 219 1 Marks
What is the advantage of using idler gear in simple
gear train?
A
Affect gear ratio
B
Does not affect gear ratio
C
Change the speed
D
Easy to engage
Question 220 1 Marks
What is the angle of saw tooth thread?
A
29 Degree
B
30 Degree
C
45 Degree
D
90 Degree
Question 221 1 Marks
How many numbers of gears having in a simple gear train?
A
2
B
3
C
4
D
5
Question 222 1 Marks
How many standard wires are used to check effective
diameter very accurately?
A
One wire
B
Two wire
C
Three wire
D
Four wire
Question 223 1 Marks
Which one is used for producing a bore to a high degree of
positional accuracy?
A
Reamer
B
Drill
C
Boring tool
D
Tool maker's button
Question 224 1 Marks
What is the name of last member in a simple gear
train?
A
Driver
B
Idler
C
Driven
D
Reversing gear
Question 225 1 Marks
How the two halves of split bearing is joined?
A
On diameter line
B
On chord line
C
On length vice
D
On offset of shaft
Question 226 1 Marks
Which tool is used for cutting internal thread?
A
Die
B
Tap
C
Drill
D
Reamer
Question 227 1 Marks
What is the relation between pitch and lead in multistart thread?
A
Lead = No. start x pitch
B
Lead = Pitch
C
Lead = 1/2 pitch
D
Lead = 1/3 x pitch
Question 228 1 Marks
How many gears are assembled in tumbler gear mechanism?
A
2 gears
B
3 gears
C
4 gears
D
5 gears
Question 229 1 Marks
What is the indication of 'x' axis in CNC lathe
machine?
A
The radius of the component
B
The length of the component
C
The diameter of the component
D
Centre axis of the component
Question 230 1 Marks
What does M20 stands for?
A
Metric thread 20 mm diameter
B
Metric thread 20 mm length
C
Metric thread 20 mm pitch
D
Metric thread 20 mm lead
Question 231 1 Marks
Calculate the flat width of 10 mm pitch buttress
thread?
A
1.25 mm
B
2.25 mm
C
3.25 mm
D
4.25 mm
Question 232 1 Marks
What is the special benefit of using a fixture?
A
Slower rate of production
B
Skilled worker required
C
Faster rate of production
D
Suitable for small bach production
Question 233 1 Marks
Which code suitable for circular interpolation counter
clockwise direction?
A
G01
B
G02
C
G03
D
G04
Question 234 1 Marks
Which type of jig is used for large awkward shaped piece part is to drilled in many directions?
A
Plate jig
B
Post jig
C
Table jig
D
Trunnion jig
Question 235 1 Marks
What is the purpose of lapping vehicles?
A
Regulate cutting action and lubricate surface
B
Smooth effective operation
C
Improves dimensional accuracy
D
Improves cutting ability
Question 236 1 Marks
Which part of carriage is only for possible manual operation?
A
Apron
B
Saddle
C
Top slide
D
Cross slide
Question 237 1 Marks
Which one is chief constituent of ferrous tool material?
A
Iron
B
Tungsten
C
Vanadium
D
Carbon
Question 238 1 Marks
Which one of the following M-code is suitable for
chuck close?
A
M09
B
M11
C
M10
D
M13
Question 239 1 Marks
Which type of angle plate is used to hold work at an
angle?
A
Solid
B
Slotted
C
Swivel
D
Box
Question 240 1 Marks
What is the advantage of jig?
A
It holds the job
B
Hold and locate the work
C
Hold, locate and guide the tool
D
Cost is very low
Question 241 1 Marks
Which one of the following M-code is suitable for
coolant pump ON?
A
M10
B
M11
C
M09
D
M08
Question 242 1 Marks
Which mode, the cutting tool returns back to its home
position?
A
Automatic mode
B
MDI mode
C
Jog mode
D
Reference mode
Question 243 1 Marks
Which of the following is not advantage of CNC
machine?
A
Higher flexibility
B
Improved quality
C
Reduced scrap rate
D
Improved strength of the components
Question 244 1 Marks
What does the letter 's' stands in the equation d =Y-2(s+r) in taper measurement?
A
Diameter over the roller at large end
B
Diameter over the rollers at small end
C
Radius of the rollers
D
Distance from the centre of the roller to the end of the component
Question 245 1 Marks
What is the width of the tool to cut a square thread of 60 x 9 mm pitch?
A
4.5 mm
B
9.5 mm
C
9 mm
D
8.5 mm
Question 246 1 Marks
What is the shape of telescopic gauge?
A
C - shaped
B
U - shaped
C
T - shaped
D
S - shaped
Question 247 1 Marks
Calculate the change gear to cut 8 mm pitch on a work
having a lead screw of 4 mm pitch gear 20 to 120 teeth
by 5 teeth range
A
Driver 40 teeth Driven 20 teeth
B
Driver 50 teeth Driven 60 teeth
C
Driver 80 teeth Driven 25 teeth
D
Driver 60 teeth Driven 35 teeth
Question 248 1 Marks
Which mode is used while loading / unloading the
work piece in CNC machine?
A
Simulation mode
B
Automatic mode
C
Jog mode
D
Edit mode
Question 249 1 Marks
What is the expanded form of ABC in first aid?
A
Airway, blood and circulation
B
Aspiration, blood and circulation
C
Airway, breathing and circulation
D
Aspiration, breathing and circulation
Question 250 1 Marks
What is the maximum size of bore that can be checked
with telescopic gauge?
A
152.4 mm
B
88.9 mm
C
53.9 mm
D
31.7 mm
Question 251 1 Marks
Which angle is preventing the cutting edge from rubbing action?
A
Web angle
B
Rake angle
C
Clearance angle
D
Point angle
Question 252 1 Marks
Which method of holding is used for lengthy work to avoid over hanging?
A
In between centres
B
In four jaw chuck
C
In face plate
D
Angle plate
Question 253 1 Marks
Which is the advantage of CNC machine over
conventional machines?
A
High cutting speed
B
Feed back control
C
High feed
D
Mass production
Question 254 1 Marks
Where is the dead centre fixed on lathe?
A
Carriage
B
Tail stock
C
Head stock
D
Cross-Stock
Question 255 1 Marks
What is the advantage of preventive maintenance
system?
A
Improves quantity and quality of product
B
Reduce the manpower for the maintenance
C
Reduce the cost of maintenance
D
Reduce the life of machine
Question 256 1 Marks
Which one of the following M-code is suitable for spindle rotation stop?
A
M05
B
M03
C
M06
D
M04
Question 257 1 Marks
Which work holding device is more suitable for accurate boring using tool maker's button?
A
3-Jaw chuck
B
Magnetic chuck
C
Collect
D
Face plate
Question 258 1 Marks
What is the lead of M 24 x 3.5 triple start thread?
A
3.5 mm
B
8.5 mm
C
10.5 mm
D
12.8 mm
Question 259 1 Marks
Why in CNC machine tool, the part program entered
in edit mode is stored into the computer memory?
A
Can be used only once
B
Can be used again and again
C
Can be used again but it has to be modified every time
D
Cannot say
Question 260 1 Marks
Which one belongs to team work?
A
Soft skill
B
Hard skill
C
Knowledge
D
Technical skill
Question 261 1 Marks
Which part of the lathe is situated at right hand side of the lathe bed?
A
Carriage
B
Tool post
C
Head stock
D
Tailstock
Question 262 1 Marks
What is the formula for pitch diameter of thread?
A
Major diameters - single depth
B
Major diameters - 2 depth
C
Major diameters - minor diameter
D
Major diameter - Pitch
Question 263 1 Marks
What does BIS stands for?
A
Bureau of International Standard
B
Bureau of Indian Standard
C
Bureau of International Society
D
Bereau of Indian Society
Question 264 1 Marks
What is the specific use of tool maker's button in lathe
operation?
A
For producing a tool to high degree accuracy
B
For producing bore to a high degree of positional accuracy
C
For producing a button to a high degree of positional accuracy
D
For producing tool to a high degree of positional accuracy
Question 265 1 Marks
How the turning tool is moving in tail strock offset method?
A
Perpendicular to lathe axis
B
Angular to lathe axis
C
Parallel to lathe axis
D
Vertical to lathe axis
Question 266 1 Marks
What will happen if lap material used to make laps
harder than work piece?
A
Improve better geometrical accuracy
B
Abrasives cut the lap instead of work piece
C
Improve dimensional accuracy
D
Refines surface finish
Question 267 1 Marks
What is the hole basis system?
A
Size of shaft is constant
B
Size of hole is constant
C
Size of the hole is varied
D
Size of both hole and shaft are varied
Question 268 1 Marks
Which one is the golden hours related to first aid?
A
First 15 minutes
B
First 20 minutes
C
First 30 minutes
D
First 45 minutes
Question 269 1 Marks
Which material is to used to make body of three jaw chuck?
A
Cast iron
B
Cast steel
C
Alloy steel
D
Hardened steel
Question 270 1 Marks
What is the most accepted method of representing
roughness?
A
Grade number
B
Symbol
C
Units
D
Weight
Question 271 1 Marks
Which gas is used in nitriding process?
A
Ammonia
B
Helium
C
Carbon dioxide
D
Hydrogen
Question 272 1 Marks
What is the type of fit if minimum size of the shaft is larger than maximum size of hole?
A
Interference
B
Clearance
C
Trasition
D
Running
Question 273 1 Marks
Which material is used to make angle plate?
A
Mild steel
B
Cast iron
C
Tool steel
D
Wrought iron
Question 274 1 Marks
What is the unit of deviation in limits and fits?
A
Millimeter
B
Centimeter
C
Micron
D
Mill micron
Question 275 1 Marks
Which mode is used to move the turret in micron
level?
A
Auto mode
B
Jog mode
C
MDI mode
D
Incremental jog mode
Question 276 1 Marks
The CNC keyboards have with following keys?
A
Alphabetic control keys
B
Alphanumerical control keys electronic
C
CNC codes
D
Numerical Data based keys only
Question 277 1 Marks
Where the fixed steady rest clamped on a lathe?
A
On a saddle
B
On a carriage
C
On tool post
D
On the lathe bed
Question 278 1 Marks
Which one of the following command the G02 code
indicates?
A
Linear interpolation
B
Circular interpolation clockwise direction
C
Circular interpolation counter clockwise direction
D
Cross sectional interpolation
Question 279 1 Marks
What is the purpose of slots milled on two planes of
angle plate?
A
Reduce the weight
B
Clamp the job
C
Maintain accuracy
D
Good appreance
Question 280 1 Marks
What does AQL stands for?
A
Aquired quality limit
B
Acceptance quality limit
C
Another quality limit
D
Acceptance quality level
Question 281 1 Marks
Which one of the following code is used for tool nose
compansation at left side?
A
G40
B
G41
C
G42
D
G32
Question 282 1 Marks
Which one of the following is disadvantage of tailstock offset method?
A
Power feed can be given
B
Good surface finish can be obtained
C
External taper thread can be produce
D
Only external taper can be turned
Question 283 1 Marks
Calculate the length of metal passing by cutting tool in
one revolution if the diameter of work is 75mm and
cutting speed is 120m/min.
A
235.5 mm
B
295.7 mm
C
365.3 mm
D
485.7 mm
Question 284 1 Marks
Which formula to be used to find core diameter?
A
Core diameter = Major diameter - 2 depth
B
Core diameter = Major diameter - depth
C
Core diameter = Major diameter - minor diameter
D
Core diameter = Major diameter - pitch
Question 285 1 Marks
Which one of the following code is suitable for spindle rotation in clock wise direction?
A
G02
B
M03
C
G03
D
M04
Question 286 1 Marks
What does QA and QC stand for?
A
Quality assurance and quenching control
B
Quality adjustment and quality complete
C
Quality assurance and quality control
D
Quality assurance and quenching control
Question 287 1 Marks
How the complex cutting motion involving X,Y and Z moments is carried out by CNC machining?
A
Use of jigs, cams, templates and tracers
B
Skill of machine operator
C
Combinations of co ordinates obtained from drives along the axis
D
Based on electrical power supply of the machine
Question 288 1 Marks
What is the cut of file used for deburring the job on lathe?
A
Rasp cut file
B
Double cut file
C
Curved cut file
D
Single cut file
Question 289 1 Marks
Which mechanism is also called as reversing gear unit?
A
Tumbler gear
B
Change gear unit
C
Quick change box
D
Apron mechanism
Question 290 1 Marks
Calculate change gears to cut a three start thread having a pitch of 1.5 mm; the lead screw has a pitch of 6 mm.
A
Driver 45 teeth, Driven 60 teeth
B
Driver 60 teeth, Driven 50 teeth
C
Driver 30 teeth, Driven 70 teeth
D
Driver 50 teeth, Driven 100 teeth
Question 291 1 Marks
Which one of the following is the solid carburizing material?
A
Charcoal
B
Petrol
C
Ammonia
D
Kerosene
Question 292 1 Marks
How many types of split bearing?
A
4
B
3
C
5
D
2
Question 293 1 Marks
Which part of the lathe is H shaped cast iron on the bed ways?
A
Saddle
B
Top slide
C
Tail stock
D
Cross slide
Question 294 1 Marks
Which one is the angle of buttress thread?
A
30 Degree
B
45 Degree
C
55 Degree
D
60 Degree
Question 295 1 Marks
Which gauge is to be selected for checking the corner
radius of the job?
A
Radius gauge
B
Fillet gauge
C
Feeler gauge
D
Plug gauge
Question 296 1 Marks
How many precision rollers required for measuring
angle of tapered component?
A
1
B
2
C
3
D
4
Question 297 1 Marks
How the cutting speed is expressed?
A
Foot/min
B
Meter/sec
C
Meter/min
D
Revoluation/min
Question 298 1 Marks
Which formula to be used to find depth of buttress thread?
A
0.5 x pitch
B
0.6134 x pitch
C
0.6403 x pitch
D
0.75 x pitch
Question 299 1 Marks
Which one of the following code used to switch off
the coolant pump?
A
M07
B
M08
C
M09
D
M30
Question 300 1 Marks
Which command activates in automatic mode?
A
Work offset settings are taken
B
Tool changes automatically
C
Program executed
D
Program simulation
Question 301 1 Marks
What is the term of thread the advancement of
mating part in one complete rotation?
A
Pitch
B
Depth
C
Helix angle
D
Lead
Question 302 1 Marks
Which part of the lathe helps to give angular movement during taper turning?
A
Saddle
B
Tool Post
C
Cross slide
D
Compound slide
Question 303 1 Marks
What is the use of maintenance records?
A
To analyse the purchase
B
To analyse the periodic inspection
C
To analyse the cause fault and rectification
D
To analyse the function maintenance department
Question 304 1 Marks
Which part of the universal surface gauge is used for fine adjustment?
A
Scriber
B
Spindle
C
Guide pin
D
Rocker arm
Question 305 1 Marks
Where the bend type lathe carrier is engaged?
A
Face plate
B
Angle plate
C
Catch plate
D
Driving plate
Question 306 1 Marks
Which deviation is zero in hole basis system?
A
Lower deviation is zero
B
Upper deviation is zero
C
Both upper and lower deviation is zero
D
Both upper and lower deviation is below basic size
Question 307 1 Marks
Which axis the tool moves in taper turning attachment?
A
Perpendicular to lathe axis
B
Parallel to lathe axis
C
Angular to lathe axis
D
Vertical to lathe axis
Question 308 1 Marks
What is the form of NO GO anvil of calliper gauge with
roller type?
A
Half thread form
B
Full thread form
C
Correct shaped form
D
Truncated shaped form
Question 309 1 Marks
What is the name of work holding device were the
irregular work could hold in lathe?
A
Face plate
B
Catch plate
C
B-Jaw chuck
D
Driving place
Question 310 1 Marks
Which type of thread have higher mechanical advantage?
A
V- thread
B
Acme thread
C
Square thread
D
Buttress thread
Question 311 1 Marks
Which cutting tools have highest cutting efficiency?
A
Mild steel
B
High carbon steel
C
High speed steel
D
Carbide
Question 312 1 Marks
Which gear drives the fixed stud gear in lathe?
A
Feed shaft
B
Tumbler gear
C
Norton gear box
D
Apron mechanism
Question 313 1 Marks
What is the lead of M 10 x 1.5 double start thread?
A
2 mm
B
3 mm
C
3.5 mm
D
4 mm
Question 314 1 Marks
What is the drill point angle for drilling brass?
A
140 Degree
B
130 Degree
C
120 Degree
D
118 Degree
Question 315 1 Marks
Which part of lathe slides over the bedways between headstock and the tailstock?
A
Lead screw
B
Feed rod
C
Carriage
D
Spindle
Question 316 1 Marks
Which lathe accessory is used to clamp the fixture?
A
3 jaw chuck
B
4 jaw chuck
C
Face plate
D
Collet chuck
Question 317 1 Marks
What is the accuracy of measurement by a try square?
A
0.002 mm / 10mm length
B
0.02 mm / 100mm length
C
0.2 mm / 1000 mm length
D
2 mm / 1 mm length
Question 318 1 Marks
What is the name of the centre with a carbide tip is brazed into an ordinary steel shank?
A
Ball centre
B
Half centre
C
Tipped centre
D
Insert type centre
Question 319 1 Marks
Which one of the advantage of mass production?
A
Special purpose machinery are necessary
B
Jigs and fixture are needed
C
Gauges are to be used
D
Time for manufacturing of components is reduced
Question 320 1 Marks
What is the formula to calculate the core dia of the square thread?
A
Major dia - 2 x depth
B
Major dia - minor dia
C
Major dia - Pitch dia
D
Major dia - Depth of thread
Question 321 1 Marks
Which of the following abrasive is preferred for lapping soft steels and non-ferrous metal?
A
Silicon carbide
B
Natural corundum
C
Aluminium oxide
D
Boron carbide
Question 322 1 Marks
What is the process of increasing carbon percentage on the surface of low carbon steel?
A
Hardening
B
Nitriding
C
Carburizing
D
Tempering
Question 323 1 Marks
Which G-code is suitable for data input in mm?
A
G21
B
G27
C
G20
D
G28
Question 324 1 Marks
Which method is suitable for measuring minor diameter of
internal thread?
A
By using screw thread micrometer
B
By using three wire method
C
By using slip gauge and precision roller
D
By using precision rolles and vernier calliper
Question 325 1 Marks
Which type of trapezoidal thread is used in places there motion is to be transmitted between shafts at right angle?
A
Acme thread
B
Buttress thread
C
Saw-tooth thread
D
Worm thread
Question 326 1 Marks
What is the meaning of M24 in M 24 x 3 single start thread?
A
Core dia of thread
B
Major dia of thread
C
Effective dia of thread
D
Depth of thread
Question 327 1 Marks
What is 7 with expression of fit 30H7/g6?
A
Hole tolerance grade
B
Shaft tolerance grade
C
Shaft and hole tolerance
D
Shaft and hole allowance
Question 328 1 Marks
Which is the device that can hold, locate and guide the
tool?
A
Jig
B
Fixture
C
Chuck
D
Collet chuck
Question 329 1 Marks
How much angle is to be added for lead angle of a square thread as clearance to the helix angle?
A
1 Degree 55 Minutes
B
1 Degree 50 Minutes
C
1 Degree 45 Minutes
D
1 Degree 30 Minutes
Question 330 1 Marks
What is the type of fit in expression 75 H8/j7?
A
Transition fit
B
Clearance fit
C
Interference fit
D
Force fit
Question 331 1 Marks
Where multistart threads are used?
A
For easy alignment
B
For quick transmission
C
For easy engagement
D
For general fastening
Question 332 1 Marks
Which is 3 jaw chuck?
A
4 Jaw chuck
B
Magnetic chuck
C
Combination chuck
D
Self centring chuck
Question 333 1 Marks
What is the inclined angle of dead centre conical point?
A
90 Degree
B
60 Degree
C
50 Degree
D
30 Degree
Question 334 1 Marks
Which material is used for making lathe bed?
A
Pig iron
B
Mild steel
C
Grey cast iron
D
Nodular cast iron
Question 335 1 Marks
Which lathe accessory is used to hold the previously bored job?
A
Face plate
B
Drive plate
C
Mandrel
D
Catch plate
Question 336 1 Marks
What is the purpose of normalizing steel?
A
Remove induced stresses
B
Improve machinability
C
Soften the steel
D
Increase the toughness and reduce brittleness
Question 337 1 Marks
Which one of the following is disadvantages of taper turning by attachments?
A
Both external and internal tapers can be produced
B
Power feed can be produced
C
Length taper can be produced
D
Only limited taper angle can be turned