| Post Name | JUNIOR INSTRUCTOR (FITTER) - Industrial Training |
|---|---|
| Question Paper Code | 157/2024 |
| Category Code | 659/2023 |
| Date of Test | 11 November 2024 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The marking media used for marking out purpose which is poisonous is
Answer
B. Copper Sulphate
2
B grade surface plates are 0.02 mm of flatness. While A grade surface plates are
within ___________ flatness.
Answer
D. 0.005 mm
3
The smallest size of gauge block in a m88 set of slip gauge is
Answer
A. 1.0005 mm
4
What is the purpose of slots in the angle plate ?
Answer
B. To enable the work to be held firmly by bolts and clamps
5
In measurement, the length standard is classified as two. One is line standard and
the other is
Answer
C. End standard
6
____________ is an example of precision measuring instrument.
Answer
A. Slip gauge
7
A caliper which is extremely useful for scribing lines parallel to the edge of the work
and for finding centre of a cylindrical work is
Answer
D. Hermaphrodite caliper
8
If the bevelled edge of the thimble of an outside micrometer passed along the barrel
from the zero to 18 divisions above reference line, 1 division below reference line
and division 12 on the thimble line coincides with the longitudinal line. What will be
the reading ?
Answer
B. 18.62 mm
9
Gauges are made in 5 grades of accuracy. In that which grade is most commonly
used in the production of components, tools and gauges ?
Answer
D. Grade I
10
In a vernier caliper the vernier scale has 50 divisions which are numbered from
0 to 50. Every fifth division is numbered. The length of 50 divisions on the vernier
is equal to the length of 49 divisions or 49 mm on the main scale. Then what is the
least count of this vernier calliper ?
Answer
C. 0.02 mm
11
Which metal is used to make hammer ?
Answer
C. drop forged carbon steel
12
How bench vice is specified ?
Answer
D. Width of the jaws
13
What is the accuracy of steel rule in British system ?
1 1 1
Answer
A. inch
14
What is the accuracy of try square for 10 mm length ?
Answer
C. 0.002 mm
15
What is the other name of jenny caliper ?
Answer
B. Hermaphrodite caliper
16
Which instrument is used for testing the straightness and flatness of plane
surfaces ?
Answer
Question Cancelled
17
Which part of combination set is used to locate the centre of cylindrical jobs ?
Answer
A. Centre head
18
How many minutes are in 1 degree ?
Answer
C. 60 minutes
19
What is the unit of mass in FPS system ?
Answer
C. Pound
20
How screw drivers are specified ?
Answer
B. According to the length of shank and width of tip
21
Which of the following statement is correct about Needle file ?
Answer
C. Nominal length = File length + Tang length
22
Which of the following statement is/are correct related to grinding wheel bond ?
i. Shellac bond wheels have a milder action and cut with less harshness than vitrified
bond wheels.
ii. Silicate bond is used for heavy duty, large diameter wheels where fine finish is
required.
iii. Vitrified bond is the most widely used bond and it has high porosity and
strength.
iv. Resinoid bond is used for speed wheels and are used in foundries for dressing
castings.
Answer
B. Only iii and iv
23
What is the point angle of chisel, having rake angle 30 degree and clearance angle
20 degree ?
Answer
C. 40 degree
24
A hole is reamed with a 10 mm reamer, drill size should be
Answer
D. 9.75 mm
25
match the following :
a. Mill saw file i. Used for die-sinking, engraving and in silversmith’s
work.
b. Crossing file ii. Used for sharpening teeth of wood-working saws.
c. Barrette file iii. This file has a rectangular shape with teeth only at
the bottom face.
d. Riffler file iv. This file is also known as ‘fish back’ file.
v. This file has a flat, triangular face with teeth on the
wide face only.
Answer
B. a – ii, b – iv, c – v, d – i
26
Which of the following statements is/are true with related to file ?
i. In a single cut file, the teeth are at an angle of 60 degree to the centre line and
second cut file, over cut 70 degree and upcut 51 degree.
ii. Rasp cut files are available only in flat shape and curved cut files are available
only in half round.
iii. Length of the file is the distance from the tip to handle.
iv. A bastard file is used for bringing the job close to the finishing size.
Answer
D. None of the above
27
The angle of counter sinking, for the use countersink head screws and deburring is
Answer
B. 90 degree
28
Which of the following statement is/are correct about chisel angles ?
i. The correct point angle and angle of inclination generate the correct rake and
clearance angle.
ii. If the clearance angle is too great, the rake angle increases.
iii. Clearance angle is the angle between the bottom face of the cutting point, and
the tangent to the work surface originating at the cutting edge.
iv. Rake angle is the angle between the top face of the cutting point, and normal
(90 degree) to the work surface at the cutting edge.
Answer
A. Only i, iii and iv
29
Which of the following statements is/are correct with related to hack saw blade ?
i. All hard blades should be thinner than flexible blades.
ii. In flexible blades, only the teeth are hardened.
iii. For cutting soft materials such as bronze, brass, soft steel, cast iron etc. uses
1.00 mm pitch blade.
iv. For cutting conduit and other thin tubing, sheet metal work etc. uses 0.8 mm pitch
blade.
Answer
A. Only ii and iv
30
In a drill bit the narrow strip which extends to the entire length of the flute is known
as
Answer
C. Land
31
The difference between high limit and low limit is called
Answer
A. Tolerance
32
What is accuracy of metric outside vernier micrometer ?
Answer
C. 0.001 mm
33
What is the term used for the relationship exist between two mating parts ?
Answer
D. Fit
34
Which type of fixture is used for machines on evenly spaced surfaces ?
Answer
C. Indexing fixture
35
Which type of jig is used for awkwardly shaped work piece to drill at different angle ?
Answer
A. Trunnion jig
36
What is the use of drill gauge ?
Answer
B. Check the diameters of the drill
37
What is the name of gauge ?
Answer
C. Centre gauge
38
What is the reading of the outside micrometer 50 mm to 75 mm ?
Answer
B. 57.74 mm
39
What is the reading of a vernier caliper ?
4 5 6 7 8
0 5 10 15 20 25 30 35 40 45 50
Answer
B. 35.40 mm
40
What is the name of gauge ?
GO
40g6
NO GO
Answer
D. Snap Gauge
41
What is the approximate composition of lead and tin in eutectic alloy ?
Answer
D. 63% Tin and 37% lead
42
Which type of belt fastener is used on heavy-duty machines ?
Answer
B. Lagrelle type belt fastener
43
Which washer is used when the mounting holes are over size ?
Answer
C. Internal and external type
44
Which type of gears are widely used for speed reduction purposes ?
Answer
A. Worm shaft and worm gear
45
Which type of bearing has provision for wear adjustment ?
Answer
B. Adjustable slide bearing
46
Which set screw is used on parts requiring frequent adjustment ?
Answer
C. Flat point set screw
47
Which coupling is used on line shafts in textile mills ?
Answer
A. Clamp coupling
48
Which rivets are used to reduce the height of the rivet head above the metal
surface ?
Answer
A. mushroom head rivets
49
Which of the following clutch is a positive drive ?
Answer
D. dog clutch
50
Which type of key is used for transmitting unidirectional torque ?
Answer
B. Parallel or feather key
51
Which of the following statement is/are correct about Lead ?
i. lead is extracted from ore called Galena.
ii. lead is a heavy metal.
iii. Solder is an alloy of lead.
Answer
C. All of the above i, ii and iii
52
Which of the following statement is/are correct about Annealing ?
i. Annealing soften the steel.
ii. Annealing reduce ductility.
iii. Annealing improves the machinability.
Answer
C. Only i and iii
53
Which of the following statement is/are correct related to structure of steel ?
i. Ferrite is relatively soft and ductile.
ii. Cementite is a chemical form of iron and carbon.
iii. Carbon content in ferrite is more than 1%.
Answer
B. Only i and ii
54
The major constituents of monel metal are
Answer
C. Nickel and Copper
55
Major constituents of Muntz metal is
Answer
B. Copper
56
match the hardness testing methods in Group I with the corresponding indenters in
Group II.
P. Vickers hardness 1. Brale indenter
Q. Brinell hardness 2. 1.6 mm diameter steel ball
R. Rockwell B hardness 3. 10 mm diameter steel ball
S. Rockwell C hardness 4. Square base diamond Pyramid
Answer
D. P – 4, Q – 3, R – 2, S – 1
57
When heating the steel, changes its temperature commences from
Answer
D. 723°C
58
In the process of normalizing steel, the specimen is subjected to heating
Answer
D. Above the upper critical temperature, then cooled in still air.
59
double bell and happer arrangement mechanism is used in
Answer
A. Blast furnace
60
Alloy that contains lanthanoid metals is
Answer
A. mischmetal
61
The name of square hole in Anvil, which is used for holding square shank of various
fitting
Answer
C. Hardie hole
62
Which are correct statement in the case of Chisel used in Forging ?
I. The edges of cold chisel is hardened and tempered with an angle of 60°.
II. The edges of cold chisel is hardened and tempered with an angle of 30°.
III. The edges of hot chisel is 30° and hardening is not necessary.
IV. The edges of hot chisel is hardened and tempered with an angle of 60°.
Answer
D. I and III
63
The Forging operation holes are opened out driving through a larger tapered puch
is called
Answer
A. drift
64
Which are the statement correct in the case of Cutting in Forging ?
I. It is the process of combined (packed) forging piece into heavy stock.
II. It is the process of separating
Answer
B. II and III
65
In forging operations, the name of process of increasing the thickness of bar at the
expense of its length is known as
Answer
C. Up setting
66
Which are the statement correct in the case of Forging Fullers ?
I. Fullers are used for necking down a piece of work.
II. Fullers are used to give smoothness and accuracy to article which are already
shaped.
III. It is used for work which has to be reduced and finished to round, square,
hexagonal form.
IV. They are made in top and bottom tool.
Answer
D. IV and I
67
In Forging, the material that should possess a property, which is the ability to sustain
substantial plastic deformation without fracture even in the presence of tensile
stresses ?
Answer
B. ductility
68
Which of the alloy Metal have good relative forgability ?
Answer
C. Copper alloy
69
In Forge weld, method of preparing the pieces of metal for welding is known as
Answer
A. Scrafing
70
The process of producing correct size cylindrical hole by using hot puch over cylindrical
Die in Forging operation is
Answer
C. Punching
71
What is the cutting angle of straight snips ?
Answer
C. 87°
72
Which mallet is used for hollowing operation ?
Answer
A. Bossing mallet
73
What is the least count of a metric outside micrometer ?
Answer
D. 0.01 mm
74
The point angle of a Scriber is
Answer
B. 10° to 20°
75
Which type soldering iron is used for soldering heavy gauge metal ?
Answer
C. Handy soldering iron
76
The angle of bevelled edge in a hatchet stake is
Answer
D. 50° to 60°
77
Which sheet is used for making highly corrosive acid tanks ?
Answer
A. lead sheet
78
The process of removing metal to the desired shape from the side or edge of a sheet
is known as
Answer
C. Notching
79
The operation of producing thin-walled hollow shaped articles from sheet metal is
known as
Answer
B. drawing
80
The allowance for Paned down joint is
Answer
D. P = 2W + 2T
81
What is the melting point of Zinc ?
Answer
A. 419°C
82
The flame used for oxy-acetylene welding of copper must be
Answer
C. Neutral flame
83
Which of the following statements are correct ?
i. Never use oil or grease in any part or assembly of a gas welding plant.
ii. Use the match box to ignite oxy-acetylene flame.
iii. Always open the oxy-acetylene cylinder valves not more than one and a half
turns.
Answer
A. Only i and iii
84
Which among the following weld defects are internal defects ?
i. Undercut
ii. Blowhole
iii. Spatters
iv. Crack
Answer
B. Only ii and iv
85
Which of the following are not in connection with gas welding ?
i. Welding blow pipe
ii. Electrode holder
iii. Welding cables
iv. Spark lighter
Answer
C. Only ii and iii
86
What are the uses of oxy-liquid petroleum gas flame ?
i. used for gas cutting steel
ii. used for underwater gas cutting of steel
iii. used for heating purposes
iv. used for brazing
Answer
D. Only i and iii
87
Which of the following statements are correct ?
i. Carbide to water type acetylene generator produces acetylene pressure up to
1 kg/cm2.
ii. Water to carbide type acetylene generator is low pressure acetylene gas
generator.
iii. Water to carbide type acetylene generator uses only a particular grade of calcium
carbide.
iv. All of the above.
Answer
B. Only i and ii
88
What should be done in oxy-acetylene welding flash back happens ?
i. Close the blowpipe oxygen valve first
ii. Cool the blowpipe in water
iii. Increase the acetylene gas pressure
iv. The nozzle touche the molten pool
Answer
B. Only i and ii
89
Which among the following welding tests are destructive tests ?
i. Tensile test
ii. Stethoscopic test
iii. liquid penetrant test
iv. Impact test
Answer
A. Only i and iv
90
For complete combustion one volume of acetylene requires
Answer
C. 2.5 volume of oxygen
91
Which part of the lathe is used to support long workpieces ?
Answer
B. Tailstock
92
Which one of the following is not the specification of a lathe machine ?
Answer
C. Swing diameter over compound slide
93
Four jaw chuck can be trued to the accuracy of
Answer
A. .02 mm
94
The property of cutting tool which help to withstand sudden load while cutting is
Answer
B. Toughness
95
The back gear is provided on the conepully type headstock in lathe machine to
Answer
D. Reduce the spindle speed
96
Negative rake angle generally provided in the cutting tools which are made of
Answer
D. Carbide
97
What is the depth of cut given if the mild steel rod turn from diameter 40 mm to
diameter 38 mm in one cut ?
Answer
A. 1 mm
98
Calculate the driver gear teeth required to cut 2.5 mm pitch thread in a lathe having
lead screw of 5 mm pitch with driven gear of 100 teeth.
Answer
A. 50
99
In oblique cutting, the cutting edge of tool is
Answer
C. At an angle to the tool axis
100
Never lean on the machine, classified into
Answer
D. Personal safety
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