| Post Name | JUNIOR INSTRUCTOR (TOOL AND DIE MAKER) (Industrial Training) |
|---|---|
| Question Paper Code | 138/2024 |
| Category Code | 655/2023 |
| Date of Test | 16 October 2024 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
Which one of the following is not a good safety practice?
Answer
A. Clean the hands with coolant fluid
2
Hard skills and technical skills are do not matter without :
Answer
C. Soft skills
3
Which time is the golden hours in the case of a medical emergency?
Answer
B. First 30 minutes from the emergency
4
While using larger capacity fuse in a circuit :
Answer
D. It will give no protection to the circuit
5
Which one of the following is you didn’t do, when fire alarm sounds in your building?
Answer
D. Go back to workplace and work normally
6
SI unit of length is :
Answer
C. Meter
7
Steel rules are made from :
Answer
A. Spring steel
8
Angle of the punch used for witness marking is :
Answer
B. 60°
9
In a single cut file the teeth are cut at an angle of –––––––––––– to the center line.
Answer
B. 60°
10
For cutting cast iron, the hacksaw blade of –––––––––––– Pitch is used.
Answer
D. 1.8 mm
11
How much is the least count of a vernier caliper, which have 20 divisions in vernier scale
and it is equal to 19 main scale divisions. 1 MSD = 1 mm.
Answer
A. 0.05 mm
12
Pitch of the thread of an outside micrometer is :
Answer
B. 0.5 mm
13
Material used for making scriber is :
Answer
A. High carbon steel
14
Which grade V-blocks are used for general machine shop work?
Answer
C. Grade B
15
The part of the combination set which have no graduations and able to check 45° is :
Answer
C. Square head
16
Which formula is used for calculating tap drill size that gives the full depth of the
thread?
Answer
A. Tap size – 2 depth
17
Which material is used for making surface plate?
Answer
D. Granite
138/2024 4 A
18
Which one of the following marking media is available in different colour and dries very
quickly?
Answer
D. Cellulose lacquer
19
Name the tool used for enlarging by finishing previously drilled hole to accurate size :
Answer
C. Reamer
20
Which one of the following die is not used for cutting new thread?
Answer
B. Die nut
21
In a plunger type dial test indicator converting linear motion of the plunger into rotary
motion of the pointer, mechanism used is :
Answer
A. Rack and pinion mechanism
22
The maximum clearance between the hole and shaft is :
+ 0.010 − 0.005
Answer
D. 0.045
23
Interchangeability is normally applied for :
Answer
B. Mass production
24
A basic hole is a hole whose lower deviation is zero, which one of the following letter
indicate a basic hole :
Answer
B. H
25
IS:919 on limits and fits specifies following numbers of grade of fundamental tolerance
and fundamental deviations respectively :
Answer
A. 18, 25
26
Smelting is the process of reduction of iron ore into :
Answer
B. Pig iron
27
The property of a material which enables it to draw out into thin wire is :
Answer
C. Ductility
28
18-4-1 high speed steel is extensively used for lathe tools, 18-4-1 stands for :
Answer
A. Tungsten - chromium - vanadium
29
Case hardening is a method of producing hard skin on the surface of :
Answer
D. Low carbon steel parts
30
Tempering is done to reduce the :
Answer
B. Hardness of the material
31
On the top of the lathe bed there are two set of guide ways. The outer guide ways provide
bearing and sliding surfaces for :
Answer
A. Carriage
32
The thread on the screw rod of a tail stock is mostly :
Answer
B. Left hand square thread
33
A ‘H’ shaped casting that fix over the lathe bed :
Answer
C. Saddle
34
Tumbler gears are used :
Answer
D. To give desired direction of movement to lathe carriage
35
If the pitch of the thread to be cut is an exact multiple of the pitch of the lead screw,
thread is called :
Answer
D. Even thread
138/2024 6 A
36
While turning taper using tail stock set over method, when tail stock is offsetting
towards the operator the small diameter of the taper will be :
Answer
B. At Tail stock side
37
To get least count of 5’ in vernier bevel protractor the 23º of main scale divisions are
divided into :
Answer
D. 12 equal parts on vernier scale
38
What will be the result if carriage is not being locked during facing operation in a lathe?
Answer
D. Convex face
39
Knurling is a ––––––––– operation.
Answer
C. Forming
40
To prevent the chuck form damaging the lathe guide ways while mounting :
Answer
C. Place a wooden block or board on the guide ways
41
Which mode is used to move the turret in micron level in Fanuc series CNC Machine?
Answer
B. Incremental jog mode
42
Which code is used for Rapid Traverse in CNC Machine?
Answer
B. G00
43
Which code is used for Linear interpolation in CNC Machine?
Answer
C. G01
44
Which code is used for grooving cycle in CNC Machine?
Answer
D. G75
45
Which code is used to stop spindle rotation in CNC Machine?
Answer
C. M05
46
Which code is used to start coolant supply on CNC Machine?
Answer
C. M08
47
Which cycle is used in stock removal operation in CNC turning Fanuc series?
Answer
Question Cancelled
48
A coordinate system used for machining a workpiece is normally referred as :
Answer
C. Workpiece coordinate system
49
By Axis designation CNC Lathes are classified into how many numbers :
Answer
Question Cancelled
50
Keep the machine clean comes under which safety :
Answer
B. Machine safety
51
Silicon carbide grinding wheels are used to grind which materials :
Answer
A. Hard
52
Large diameter grinding wheels are made up of which bonding material :
Answer
C. Silicate
53
Grinding wheel marked as A16 P5 VBE, where ‘V’ represents :
Answer
B. Vitrified
54
Whether the abrasive grains are held lightly or firmly is determined by :
Answer
D. Grade of bond
55
When a thin bridge of bond holds the abrassive grains together then the grinding wheel
is called?
Answer
C. Soft wheel
56
To grind soft materials which grinding wheel is used :
Answer
D. Hard wheel
57
The spacing of abrassive grains in grinding wheel is called :
Answer
A. Structure
58
Small particles of the material being ground become embedded in the space between the
grains of grinding wheel creates defect and is called :
Answer
D. Loading
59
Defect produced by grinding hard materials on a hard wheel is called :
Answer
A. Glazing
60
Which type of defect will be produced by using wrong type of grinding wheel for the
material being ground?
Answer
Question Cancelled
61
A single point cutting tool consists of a small tip of tool material attached to a steel
shank by :
Answer
A. brazing
62
What is known as the body portion of tipped tool?
Answer
C. Shank
63
Which one of the following part is supports the milling machine table?
Answer
D. Saddle
64
In a horizontal milling machine, the cutters are holded on :
Answer
A. Arbor
65
What is termed as the rate at which the work is moved past the milling cutter?
Answer
B. Feed
66
Which of the following is not a cutting tool material?
Answer
D. Cast iron
67
Slab milling operation is also known as :
Answer
A. Plain milling
68
What is known as the angle between the face of the blade and a line passing through the
nose parallel to the side and face cutter axis?
Answer
D. Axial rake angle
69
What is the other name of Up Milling operation?
Answer
A. Conventional milling
70
What is the ratio between worm and worm wheel in simple indexing method?
Answer
B. 40 : 1
71
Which type of energy used in EDM?
Answer
C. Thermo-electric
72
What is the full form of EDM?
Answer
B. Electrical discharge machining
73
EDM operation is also known as :
Answer
D. Spark erosion
74
In EDM, which terminal is connects the work?
Answer
A. Anode
75
Which is the metal removal rate in EDM?
Answer
C. Volume of metal removal/unit time
76
Which of the following factor is not connected to EDM process?
Answer
A. Can not be employed hardened work piece
77
Which of the following is not done the dielectric fluid while EDM process?
Answer
D. Helps to reduce the time
78
Which mechanism is implanted to EDM for maintaining the spark gap while operation?
Answer
C. Servo mechanism
79
In Wire EDM, which is the commonly used dielectric fluid?
Answer
B. Deionized Water
80
Which of the following material is used to making electrode wire for TW-EDM?
Answer
B. Copper
81
Which of the following viscosity indices shows the larger changes in viscosity with
temperature?
Answer
D. 15
82
What does the symbol of an oil pan typically represent on a vehicle’s dashboard?
Answer
B. Engine oil pressure warning
83
Match the following:
(i) Sludge formation (1) Separate tank for oil storage to prevent oil
starvation
(ii) Piston blow-by gasses (2) Driven by engine crankshaft
(iii) Dry sump lubrication system (3) Condensation of water in the crankcase
(iv) Crescent type gear pump (4) Increase with engine speed
(i) (ii) (iii) (iv)
Answer
B. 3 4 1 2
84
Match the following:
(i) Primary oil filter (1) Petroil lubrication system
(ii) Crankcase Ventilation (2) Vane pump
(iii) Continuous oil flow (3) Suction side of oil pump
(iv) Two-stroke engine (4) Manifold suction system
(i) (ii) (iii) (iv)
Answer
C. 3 4 2 1
85
In an overhead camshaft engine, the type of oil pump used is:
Answer
D. Crescent type oil pump
86
Which of the following statements are correct about excessive oil consumption?
(i) P C V valve stuck closed
(ii) Defective valve seal
(iii) Worn out valve stem and or guide
(iv) The oil lines, galleries may be clogged
Answer
C. (i), (ii) and (iii)
87
In a 4S petrol engine, flywheel rotates at 1200 rpm, then the oil pump shaft rotates at:
Answer
B. 600 rpm
88
Which one of the following lubricating oils have higher viscosity and it is used in
differential mechanism?
Answer
D. S.A.E 140
89
Match the following:
(i) Vane pump (1) Spur or helical gear
(ii) Gear pump (2) Splash lubrication system
(iii) Plunger pump (3) Continuous oil flow
(iv) Rotor pump (4) Compact and quieter running
(i) (ii) (iii) (iv)
Answer
D. 3 1 2 4
90
Type of friction exists in piston rings and valve train:
Answer
C. Greasy friction
91
In an engine cylinder contains gas under pressure of 11 bar is expanded then its volume
increased by 10% of its initial volume, then the final pressure of gas at constant
temperature is:
Answer
D. 10 bar
92
Which statements are wrong? (i) M.K.S. unit of viscosity is (one kgf·s)/m²; (ii) SI unit of kinematic viscosity is stoke; (iii) C.G.S. unit of viscosity: one poise = N·s/m²; (iv) one N·s/m² = 10 poise.
Answer
D. Only (ii) and (iii)
93
The viscous force in a liquid is due to:
Answer
A. Cohesive forces > Molecular momentum transfer
94
Two pistons of a hydraulic lift have diameters of 36 cm and 6 cm. What is the force
exerted by the larger piston when 60 N is placed on the smaller piston?
Answer
A. 2160N
95
Pascal’s law states that pressure at a point is equal in all directions:
Answer
Question Cancelled
96
Fluid statics deals with:
Answer
A. Gravity and pressure forces
97
Which valve is used to adjust the speed of an actuator in a pneumatic system?
Answer
B. Flow Control Valve
98
Bulk modulus of a fluid is the ratio of:
Answer
B. Increase in pressure to the volumetric strain
99
The pressure at a point 10 m below the free surface of water is:
Answer
D. 98.10 kPa
100
In a 4/2 directional control valve, what do the numbers represent?
Answer
A. The number of positions and the number of ports
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