| Post Name | Revised Final Answer key Tradesman Smithy Forging and Heat Treating - Technical Education |
|---|---|
| Question Paper Code | 006/2026/OL |
| Category Code | 277/2025 |
| Date of Test | 8 January 2026 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
Which of the following is the combination of ļ¬re?
Answer
C. Fuel, heat and oxygen
2
What is the best method to avoid accident?
Answer
A. By observing safety precautions relating to a job, machine and working place
3
The accuracy of British type steel rule is
Answer
B. 1/64 inch
4
Which personal protective equipment is used for ear protection?
Answer
B. Ear plug
5
The type of hacksaw blade used for cutting conduit, thin tubings and other sheet metal works is
Answer
D. 0.8 mm pitch blade
6
What stands for C in ABC of ļ¬rst aid?
Answer
A. Circulation
7
What is the name of the hazard if the machine is unguarded while working?
Answer
D. Mechanical hazard
8
Which type of extinguishers are used to control B class ļ¬re?
Answer
Question Cancelled
9
The odd leg caliper is used to
Answer
B. For ļ¬nding the centre of a round bar
10
The part of hammer which is used for striking is known as
Answer
C. Face
11
The outside caliper is used as
Answer
B. Indirect measuring instrument
12
Which type of hand tool is used to set down right angles (shoulders) while forging?
Answer
D. Set hammer
13
Which of the following ļ¬le is used for ļ¬ling wood and rubber?
Answer
A. Rasp cut ļ¬le
14
Which type of metal is used to make anvil?
Answer
D. Cast steel
15
Which of the following is not a type of chisel?
Answer
C. Bullnose chisel
16
The nut used to ļ¬x blade in hacksaw frame is known as
Answer
B. Wing nut
17
The ļ¬le is made up of
Answer
D. High carbon steel
18
The instrument used for removing pinning of ļ¬le is
Answer
A. File card
19
The type of chisel used for squaring materials at the corner is
Answer
B. Diamond point chisel
20
Which type of vice is used in forging shop for hammering work pieces?
Answer
D. Leg vice
21
The carbon percentage of cast iron is
Answer
C. 2% to 4%
22
What is the speciļ¬c gravity of aluminium?
Answer
A. 2.7
23
The melting point of copper is
Answer
D. 1083Ā°C
24
The ore of lead is
Answer
B. Galena
25
The melting point of zinc is
Answer
A. 420Ā°C
26
What is the speciļ¬c gravity of lead
Answer
C. 11.36
27
Crane hooks are made of
Answer
B. Wrought iron
28
The speciļ¬c gravity of tin is
Answer
D. 7.8
29
The process of reduction of iron ore to pig iron is called
Answer
C. Smelting
30
The speciļ¬c gravity of copper is
Answer
A. 8.92
31
The carbon percentage of high carbon steel is
Answer
B. 0.6% to 1.7%
32
The property of a material which enables it to draw out into thin wire is called
Answer
D. Ductility
33
The property of a material will break easily when given a sudden blow is called
Answer
C. Brittleness
34
The ore of zinc is
Answer
B. Calamine
35
What is the melting point of Nickel?
Answer
A. 1450Ā°C
36
The carbon percentage of medium carbon steel is
Answer
C. 0.3% to 0.6%
37
High speed steel is an alloy of
Answer
D. 18% Tungsten, 4% Chromium, 1% Vanadium
38
The melting point of cadmium is
Answer
B. 320Ā°C
39
Brass is an alloy of
Answer
A. Copper and Zinc
40
The melting point of Bronze is
Answer
C. 1005Ā°C
41
When a meal is suļ¬ciently heated it acquires plastic stage what change happens to the metal?
Answer
A. It becomes soft
42
Upsetting or jumping belongs to
Answer
D. Cross section of metal is increased with reduction in its length
43
Which one of the following is exact in reverse process of upsetting or jumping?
Answer
C. Drawing out
44
What is the name of the operation performed in removing, excess metal from the job before ļ¬nishing it?
Answer
B. Cutting
45
What is the usual temperature range for hot cutting operations
Answer
A. 850Ā°C to 950Ā°C
46
Which one of the following operation in which the punch is forced through a job to produce hole?
Answer
C. Punching
47
What type of welding is Forge welding?
Answer
A. Pressure welding
48
Two bars made to join end to end by welding such that the joint formation is at right angles to length of the piece. Which type of joint is this?
Answer
B. Butt joint
49
What type of press are used for heavy work while press forging?
Answer
A. Hydraulic press
50
Which one of the following forging operation is used for mass production of identical articles in industries?
Answer
C. Drop forging
51
What is the forging temperature range for mild steel?
Answer
A. 750Ā°C - 1300Ā°C
52
What is the forging defect when shallow surface depressions caused by not removing the scales from the dies?
Answer
B. Scale pits defect
53
Which one of the range of temperature is used for copper brass and bronze forging?
Answer
C. 600Ā°C - 950Ā°C
54
While forge welding the ends of the metal pieces to be joined are made to overlap each other and then hammered. The weld joint is
Answer
C. Lap weld
55
The resistance of the material to permanent deformation such as indentation, wear, abrasion, scratch is known as
Answer
B. Hardness
56
What mechanical test is used for material properties which are used in engineering design analysis of structure and material development?
Answer
A. Hardness test
57
Which one of the following test is hardness test?
Answer
C. Brinell test
58
Which hardness test method is used to develop for production control
Answer
B. Rockwell hardness test
59
Which one of the following is used to convert molten pig iron to steel?
Answer
A. Bessemer convertor
60
Which one of the following is not used for making steel?
Answer
A. Cupola furnace
61
The temperature of open hearth process is prepared up to ________Ā°C while making steel.
Answer
C. 1500Ā°C
62
What type of steel production furnace is used for making press tools, cutting tools and precision measuring tools?
Answer
A. High frequency furnace
63
The furnace used to convert pig iron to cast iron
Answer
A. Cupola furnace
64
Which one of the following furnace is used for producing pig iron
Answer
B. Blast furnace
65
Induction furnaces are classiļ¬ed in to
Answer
A. Two types
66
Which of the following is the hardest structure that appears on the iron-carbon equilibrium diagram?
Answer
B. Cementite
67
The crystal structure of cementite grain is
Answer
B. Orthorhombic
68
What is the product of austenite decomposition by an eutectoid reaction?
Answer
A. Pearlite
69
The approximate value of tensile strength of ferrite is
Answer
D. 2800 Kg/cm2
70
Which of the following is the softest structure?
Answer
C. Ferrite
71
Which of the following process produces hard case without quenching?
Answer
A. Nitriding
72
Which process is generally preferred for hardening of machine tool guide ways?
Answer
B. Flame hardening
73
Which of the following process produces maximum hardness value in steel parts?
Answer
C. Nitriding
74
The process of introducing carbon and nitrogen in to a solid ferrous alloy is known as
Answer
Question Cancelled
75
In which of the following process ammonia bath is generally used?
Answer
B. Nitriding
76
The main objective of tempering is
Answer
B. To improve ductility
77
Austempering heat treatment process is done to improve
Answer
A. Toughness
78
Heat treatment given to hardened steel to improve its ductility is
Answer
C. Tempering
79
In austempering process of heat treatment, the austenite changes in to
Answer
D. Bainite
80
In normalising operation of steel castings, the cooling is done in
Answer
C. Air
81
Which of the following is a intermetallic compound?
Answer
B. Cementite
82
Which of the following heat treatment method is used to avoid cracking of hardened steel?
Answer
Question Cancelled
83
Which of the following process does not improve hardness?
Answer
D. Annealing
84
Which of the following is the common surface hardening treatment of steel?
Answer
A. Carburizing
85
The commonly used ļ¬ame for ļ¬ame hardening is ______
Answer
B. Oxy-acetylene ļ¬ame
86
In a third angle projection of presenting the six standard views, the Top view is located at
Answer
B. Above the front view
87
Centroidal lines are usually represented by (i) Chain thin double-dashed (ii) Long-dashed double-dotted (narrow) (iii) Dashed thick
Answer
B. Both (i) and (ii)
88
In the aligned system of dimensioning which of the following statements is most accurate according to BIS (Bureau of Indian Standards) conventions?
Answer
C. Dimensions are placed parallel to the dimension line and aligned such that they can be read from the bottom or right-hand side of the drawing sheet
89
In an isometric projection of a cube, the square faces appear as
Answer
C. Rhombuses because all edges are equally foreshortened
90
Which of the following lists of fractions is arranged in ascending order?
Answer
C. 1/2, 5/8, 2/3, 3/4
91
What is the square root of 45796?
Answer
D. 214
92
If , what is the value of
Answer
B. 23
93
Two bells ring at intervals of 36 minutes and 48 minutes. If both bells ring together at 9:00 AM, at what time will they next ring together?
Answer
B. 11:24 AM
94
The HCF of two numbers is 16, and their diļ¬erence is 48. If one of the numbers is 112, what is the other number?
Answer
A. 64
95
A sold metallic sphere of radius 7 cm is melted and recast into smaller spherical balls, each of radius 1 cm. How many such smaller speheres can be formed?
Answer
A. 343
96
Which of the following correctly deļ¬nes the SI unit of force, the Newton (N)?
Answer
A. The force required to accelerate 1 kg of mass at 1 m/sĀ²
97
Which of the following statements about limiting friction is correct?
Answer
A. Limiting friction is always greater than the kinetic friction
98
Which of the following is not a unit of pressure measurement?
Answer
D. N/mĀ²
99
Assertion (A) : The coeļ¬cient of friction has no unit and no dimension. Reason (R) : It is deļ¬ned as the ratio of the frictional force to the normal reaction force
Answer
A. Both (A) and (R) are true, and (R) is the correct explanation of (A)
100
In a third-order (third-class) lever, the positions of eļ¬ort, fulcrum and load are
Answer
B. Eļ¬ort is between load and fulcrum
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