| Post Name | Assistant Crane Driver (Electrical) - Port |
|---|---|
| Question Paper Code | 017/2020/OL |
| Category Code | 124/2017 |
| Date of Test | 3 November 2020 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
The tool, which is used for laying large circles
Answer
A. Trammel
2
'V' groove of 'V' Block is usually
Answer
D. 90°
3
The point angle of centre punch is
Answer
D. 90°
4
'V' Blocks are available in grade of
Answer
B. A and B
5
The least count of Vernier Bevel Protractor is ′
Answer
C. 5 ′
6
Brass is an alloy of
Answer
B. Copper and Zinc
7
Galvanised iron, which is coated with
Answer
A. Zinc
8
Which one of the following is a part of combination set ?
Answer
B. Square head
9
The size of a parallel jaw bench vice indicates
Answer
B. Width of the jaw
10
The value of one micron is
Answer
D. 0.001 mm
11
'Watt' is the unit of
Answer
B. Power
12
The least count of a steel rule is
Answer
C. 0.5 mm
13
In a metric Vernier Caliper, 25 VSD is equal to 24 MSD. Then the least count will be
Answer
D. 0.04 mm
14
1 cubic meter is equal to
Answer
D. 1000 Ltrs
15
Cupola furnace is used for producing
Answer
C. Cast iron
16
Setting of Hacksaw Blade, is done
Answer
C. To prevent binding when penetrating into the material
17
A twist drill of diameter 'd' mm rotates with an rpm of 'n'. Then the cutting speed of drill in m/mint is
Answer
A. 𝜋𝑑𝑛 1000
18
Which one of the following is an artificial abrasive ?
Answer
A. Aluminium oxide
19
The process of re-conditioning the grinding wheel to make it cut better is known as
Answer
C. Dressing
20
Name the forging operation by which the length of workpiece is reduced and cross section area is increased.
Answer
A. Up setting
21
Name the property of a material by which, it can be drawn into thin wires.
Answer
D. Ductility
22
Carburising is a process of
Answer
B. Case hardening
23
The process of removing metal from the surface around a drilled hole to form a seat for a bolt head or nut is
Answer
C. Spot facing
24
The tool used to remove the taper shank drill from the machine spindle is
Answer
D. Drift
25
As per BIS, a grinding wheel is specified as '51 A 46 L 5 V 23'. The term 'V' denotes
Answer
B. Type of Bond
26
Which one of the following term is related to slip gauge ?
Answer
B. Wringing
27
As per Indian Standard, there are four grades of slip gauge. They are
Answer
D. Grade 00, 0, 1, 2
28
The size based on which all the dimensional deviations are given
Answer
A. Basic size
29
The size of a component is given as 25 ± _0.05 in a drawing. The tolerance of the component is
Answer
A. 0.13
30
Which one of the following is a solid lubricant ?
Answer
B. Graphite
31
In a single start thread, the lead is equal to
Answer
C. Pitch
32
The angle of acme thread is
Answer
B. 29°
33
Which one of the following tool angle is provided to avoid rubbing of the body of the tool with the workpiece ?
Answer
A. Clearance angle
34
For good gripping and appearance, which one of the lathe operation is performed ?
Answer
C. Knurling
35
TPI of a thread is 10. Then pitch is
Answer
D. 0.1 inch
36
The 'change gears' for cutting single start thread on a lathe is given by
Answer
A. (Pitch to be cut)/(Pitch of lead screw) = Driver/Driven
37
A device which holds and locate a workpiece and guides the cutting tool is called
Answer
C. Jig
38
To provide protective coating on Aluminium, which one of the following is suitable ?
Answer
C. Anodizing
39
Vice clamps are used to
Answer
D. Protect the finished surface of the job
40
Which one of the following indicates the grade of file ?
Answer
A. Second cut
41
Which of the following is an example of linear measuring instrument ?
Answer
B. Steel rule
42
Caliper with one leg is bent and the other leg is straight called
Answer
A. Hermaphrodite caliper
43
Any mineral body from which metal can be economically recovered is called
Answer
D. Ore
44
Furnace used for the production of cast iron is
Answer
C. Cupola furnace
45
Hand file is also known as
Answer
A. Safe edge file
46
High carbon steel contains
Answer
C. 0.8% to 1.5% carbon
47
Galena is the ore of
Answer
B. Lead
48
Least count of Metric Vernier Caliper
Answer
A. 0.02 mm
49
Centre punch is ground to an angle of
Answer
D. 90°
50
In 18-4-1 H.S.S. tool, 18 represent the part of
Answer
C. Tungsten
51
Tool used for cutting internal thread into a hole
Answer
B. Tap
52
A wedge like tool used to remove the taper shank drill from the nose of drilling machine spindle is
Answer
D. Drill drift
53
The direction of filing stroke is perpendicular to the axis of file in
Answer
C. Draw filing
54
The chisel used for cutting oil grooves in bearing is
Answer
A. Round nose chisel
55
Thread usually found in screw jack
Answer
D. Square thread
56
A headless bolt threaded at both end is called
Answer
B. Stud
57
Fit adopted in cart wheel fixing
Answer
A. Shrink fit
58
Which file has 100 to 120 teeth per 25 mm ?
Answer
C. Dead smooth file
59
Liquid carburising is also known as
Answer
B. Cyaniding
60
Temperature at which oil turn into steam and evaporate is called
Answer
D. Flash point
61
Nut used in Hacksaw frame
Answer
A. Wing nut
62
A uniform increase or decrease in diameter along the length of a cylinder is called
Answer
D. Taper
63
Teeth of similar shapes are cut parallel to shaft in
Answer
B. Spur gear
64
A natural abrasive is
Answer
C. Emery
65
Fixtures used for
Answer
A. Holding and locating workpiece
66
The distance from a point on one thread to the corresponding point on the next thread is
Answer
C. Pitch
67
A tin base alloy containing 88% tin, 8% antimony and 4% copper is called
Answer
D. Babbit metal
68
When rotating a nut over a bolt, if the nut advance axially when rotating the nut in an anticlockwise direction it indicate
Answer
A. Left hand thread
69
In order to change the properties and characteristics of metals either heated or cooled is known as
Answer
C. Heat treatment
70
While filing, the teeth of files are clogged by particles of metal is known as
Answer
B. Pinning
71
In which foundation bolt, one side is straight and the other is in taper
Answer
B. Lewis type foundation bolt
72
The property of a metal by virtue of which they can be drawn into wires is known as
Answer
D. Ductility
73
The act of joining the slip gauges together while building up to size is known
Answer
A. Wringing
74
The taper generally used on taper shank of drills and reamers is
Answer
C. Morse taper
75
A neutral flame have
Answer
B. Equal volume of oxygen and acetylene
76
The process of finishing round holes by bonded abrasive stone is called
Answer
D. Honing
77
A Vernier metric micrometer shows the reading 6.214 mm. In this reading the number of Vernier scale coincide with thimble division
Answer
A. 4
78
Gauge used to check the outside diameter of shaft
Answer
C. Snap gauge
79
To locate pulleys or gears on a shaft and prevent relative movement between them, we use
Answer
B. Keys
80
A hole is to be drilled in an M. S. plate with a drill of size 15 mm, R.P.M. is 700. Find the cutting speed.
Answer
D. 33 meter/minute
81
The typical forward voltage of a yellow colour LED is
Answer
A. 2.1 V
82
The light of Mercury Vapour Lamp is
Answer
D. White with bluish green
83
To get pink colour in Neon sign Lamp _____________ chemical powder coated in the inner side of the tube.
Answer
C. Cadmium borate
84
Drop test of an armature is used for testing
Answer
D. All of the above
85
Humming sound produced by a motor is due to
Answer
B. Shorted field or armature winding
86
Current sensing single phasing preventers are suitable for
Answer
B. Constant load motors
87
The Terminals of a GTO are
Answer
A. Anode, Cathode, Gate
88
In DC generator metal graphite brushes are used for
Answer
C. High current and low voltage application
89
Which of the following is not a standard accuracy class of potential transformers ?
Answer
A. 0.6
90
In Electrician Solder the percentage of Tin and Lead is
Answer
C. 60% Tin 40% Lead
91
The instrument used for measuring speed is
Answer
B. Tachometer
92
The armature current in DC motor is maximum when
Answer
D. The motor has just started moving
93
A series RL circuits has a R = 30 Ω and L = 40 Ω the Z is
Answer
D. 50 Ω
94
The Magnetic field produced in the stater of a three phase induction motor is at
Answer
B. Synchronous speed
95
The heat proof insulating material used for heater base is
Answer
A. Mica
96
A 4 Pole 1200 rpm alternator will generate emf at the frequency of
Answer
C. 40 Hz
97
Conductivity of copper is approximately
Answer
A. 90%
98
Nichrome is an alloy of
Answer
C. Nickel and chromium
99
The unit of Magneto Motive Force (MMF) is
Answer
D. Ampere turns
100
The charging of a cell at high rate is called
Answer
B. Boost charging
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