| Post Name | BLACKSMITH GR.II-KERALA STATE WATER TRANSPORT |
|---|---|
| Question Paper Code | 068/2019 |
| Date of Test | 5 December 2019 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
In high carbon steel, carbon contain :
Answer
C. 0.8 to 1.5%
2
Which has the highest percentage of iron ?
Answer
A. Magnetite
3
Hot working of metal does not :
Answer
B. Achieve close tolerance
4
An alloy of solder contains :
Answer
B. Tin and Lead
5
Lip angle of twist drill for mild steel should be :
Answer
B. 1188
6
Forging shop tool used for mainly squaring, sizing, heading, bending and forming
operations is called :
Answer
D. Swage block
7
Galvanizing is generally done on :
Answer
C. Low carbon steel
8
Tool used for finishing corners in shouldered work :
Answer
C. Set hammer
9
Which of the following is a permanent fastening ?
Answer
A. Rivets
10
Each question is provided with four choices
Answer
D. having one correct answer.
Choose the correct answer and darken the bubble corresponding to the question number using
Blue or Black Ball Point Pen in the OMR Answer Sheet.
11
An allen bolt is :
Answer
B. Provided with hexagonal depression in head
12
Which of the following is not a forging operation ?
Answer
A. Extrusion
13
Cupola used to produce :
Answer
C. Cast iron
14
The function of coke in a blast furnace is to :
Answer
D. All of the above
15
The included angle in Acme thread is :
Answer
D. 298
16
An alloy of Nickel and Copper is called :
Answer
A. Monel
17
Which of the following contains the least percentage of carbon ?
Answer
B. Wrought iron
18
The unit of mass in SI units is :
Answer
A. Kilogram
19
The distance between the centre of two consecutive rivets in the same row is called :
Answer
C. Pitch
20
Tensile test is used for :
Answer
A. Ductile material
21
The property of a material which returns to its original position after removal of load is
called :
Answer
B. Elasticity
22
Pre-heating is essential for welding :
Answer
A. Cast iron
23
The process extensively used for making bolts and nuts is :
Answer
D. Cold heading
24
Forging temperature of plain carbon steel is :
Answer
D. 13008C
25
The process which improves the machinability of steels, but lower the hardness and tensile
strength is :
Answer
A. Spheroidising
26
The object of caulking in a riveted joint is to make the joint :
Answer
B. Leak-proof
27
A small selected portion of the job can be hardened by :
Answer
A. Flame and induction hardening
28
Coining is the operation of :
Answer
A. Cold forging
29
Which of the following is a direct compression process ?
Answer
D. Forging
30
Percentage of Silver in German Silver :
Answer
D. None of these
31
Chief source of Sulphur in the blast furnace charge is :
Answer
B. Coke
32
Mild steel belongs to the following category :
Answer
C. Low carbon steel
33
Hardness of a material determines, the resistance of materials to :
Answer
D. All of the above
34
Upsetting is the process of :
Answer
B. Forging
35
Main constituents of blast furnace slag are :
Answer
Question Cancelled
36
Corrosion resistance of steel is increased by adding :
Answer
A. Chromium and Nickel
37
A steel containing 0.8% carbon is known as :
Answer
A. Eutectoid steel
38
Which of the following materials cannot be forged ?
Answer
D. Cast iron
39
Flatter is a tool used for :
Answer
C. Finishing the surface
40
Case hardening is the only method suitable for :
Answer
B. Low carbon steel
41
Increase in hardness of metals due to its cold working is termed as :
Answer
C. Work hardening
42
Heating the steel above upper critical temperature and then cooling in air is the process of :
Answer
B. Normalizing
43
Melting point of pure iron is :
Answer
C. 15398C
44
Tool steel should be first hardened and then :
Answer
A. Tempered
45
Cold chisels are made by the process of :
Answer
C. Forging
46
Material which is best suited for forge welding is :
Answer
D. Wrought iron
47
Difference between upper and lower limit of a dimension is called :
Answer
D. Tolerance
48
Tool used for necking down operations :
Answer
A. Fuller
49
Hacksaw blade is specified by its :
Answer
B. Length
50
Melting point of Tin is :
Answer
B. 2328C
51
Another name of odd-leg caliper is :
Answer
D. Hermaphrodite caliper
52
The material generally used for aircraft components is :
Answer
D. Aluminium
068/2019 8 A
53
Which is an ore of Zinc ?
Answer
A. Calamine
54
Forging operations, the cross-sectional area of bar is increased due to its reduction
in length :
Answer
B. Upsetting
55
Low carbon steel can be hardened by :
Answer
C. Carburising and cyaniding
56
Hot tear is
Answer
C. Casting defect
57
Acetylene gas is generated from :
Answer
B. Calcium carbide
58
Gun metal is an alloy of :
Answer
B. Copper, Tin and Zinc
59
A feeler gauge is used for checking :
Answer
D. Thickness of clearance
60
Cross-section of chisel are generally :
Answer
D. Octagonal
61
Which of the following gases are used in TIG welding ?
Answer
C. Argon and Helium
62
Which of the part of an anvil is used for making hole on metal ?
Answer
D. Punch hole
63
Maximum hardenability of steel depends on its :
Answer
D. All of the above
64
Which of the following material has the highest hardness ?
Answer
C. Silicon carbide
65
Given the following is not a heat treatment process :
Answer
A. Parkerising
66
The material for drawn into wire should have high :
Answer
C. Ductility
67
Copper melts at :
Answer
C. 10838C
68
The cutting angle of chisel for cutting mild steel should be :
Answer
D. 608
69
Case hardening cannot be done by :
Answer
A. Electroplating
70
Chisels used for cutting keyways is :
Answer
C. Cape chisel
71
The instrument used to measure thickness of parts, internal and external diameter of shaft
and depth of holes, is :
Answer
D. Vernier caliper
72
Forging is accomplished in drop forging by dropping the :
Answer
C. Die with hammer at high velocity
73
A cold chisel is made of :
Answer
A. High carbon steel
74
Hammer is made by :
Answer
D. High carbon steel
75
The material for construction of bearing is :
Answer
B. Babbit metal
76
Wrought iron is :
Answer
C. Highly resistant to corrosion
77
Pure iron is the structure of :
Answer
A. Ferrite
78
Ability of material absorbing large amount of energy before fracture is known as :
Answer
B. Toughness
79
Young’s modulus may be defined as the ratio of :
Answer
C. Linear stress to linear strain
80
The tool used for internal thread making :
Answer
A. Tap
81
Mild steel is used for making :
Answer
D. Channels
82
Machining properties of steel is improved by adding :
Answer
A. Sulphur, Lead and Phosphorus
83
Steel possess the maximum ductility by :
Answer
B. Annealing
84
The railway carriage couplings have :
Answer
C. Knuckle thread
85
The test specimen is measured in the creep test :
Answer
B. Deformation in length
86
Blast furnace produces :
Answer
C. Pig iron
87
The process in which carbon and nitrogen both are absorbed by the metal surface to get
hardened is :
Answer
B. Cyaniding
88
Age hardening is connected with the :
Answer
C. Duralumin
89
Swage block is made of :
Answer
D. Cast iron
90
The usual value of the helix angle of drill is :
Answer
C. 308
91
Point angle of centre punch is :
Answer
D. 908
92
Name of the cutting tool fixed on an anvil :
Answer
B. Hardie
93
The minimum amount of carbon in gray cast iron is :
Answer
D. 2.5%
94
Steel pipes are normally manufactured by :
Answer
A. Extrusion
95
Drills are usually made of :
Answer
B. High speed steel
96
Chisel used for removing surplus metal in cotter ways and slots is called :
Answer
D. Side chisel
A 13 068/2019
{P.T.O.}
97
Bronze is an alloy of Copper and :
Answer
C. Tin
98
Depth of hardness of steel is increased by addition of :
Answer
B. Chromium
99
The compression test is carried on :
Answer
B. Brittle material
100
In engineering drawing, visible outlines are represented by :
Answer
A. Continuous thick
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