1) The main scale is on which part of the vernier height gauge
Movable
Base
Vernier scale
Beam
Correct answer
Beam
2) Least count of vernier caliper in the metric system is ………………….
0.01 mm
0.02 mm
0.05 mm
0.001 mm
Correct answer
0.02 mm
3) Which among the below is not a type of welding
Nonfusion
Fusion
Nonpressure
Pressure
Correct answer
Nonpressure
4) What is the name of the tool used to remove the drill chuck from the spindle of the drill
Drift Pin
Saw
Chisel
Chuck key
Correct answer
Chuck key
5) In a drill the H.S.S. means …………
Tool type
I.S. No
Diameter
Material
Correct answer
Material
6) A non-ferrous metal which has the property of brittleness that is
Copper
Zinc
Tin
Lead
Correct answer
Zinc
7) Resistance developed by the surface of any material is known as:
Hardness
Creep
Stiffness
Strength
Correct answer
Hardness
8) The body of airoplane is made of aluminum because of its …………
Weight
Point
Colour
Melting point
Correct answer
Weight
9) Least count of vernier micrometer is to be read
0.001 mm
0.02 mm
0.01 mm
0.1 mm
Correct answer
0.001 mm
10) Taps cut the only thread of
Only one end
External
Both external and internal
Internal
Correct answer
Internal
11) The resistance of the material against any external force is known as:
Malleability
Hardness
Stiffness
Strength
Correct answer
Strength
12) Permanent deformation of material with respect to time due to a constant load and variable temperature is known as:
Elasticity
Isotropy
Creep
Hardness
Correct answer
Creep
13) In Normalizing, cooling is done in which of the following medium?
Water
Furnace
Air
Oil
Correct answer
Air
14) Mild steel can be converted into high carbon steel by using which of the following process?
Annealing
Normalizing
Case hardening
None of these
Correct answer
Case hardening
15) Annealing of steel is done to impart which one of the following property on steel?
Hardness
Toughness
Ductility
None of the mentioned
Correct answer
Ductility
16) The commonly used flux in brazing is
Zinc chloride
Resin
Borax
Lead sulphide
Correct answer
Borax
17) The composition of soft solder is
lead-50%, tin-50%
lead-37%, tin-63%
lead-70%, tin-30%
lead-63%, tin-37%
Correct answer
lead-37%, tin-63%
18) Which of the following isn’t a main part of rivet?
Point
Head
Shank
Thread
Correct answer
Thread
19) A rivet is specified as a 20 mm rivet. What does it mean?
a) Shank Dia 20 mm
b) Head Dia 20 mm
c) Both (a) & (b)
d) None of these
Correct answer
a) Shank Dia 20 mm
20) The tooth thickness of rack is measured by ………..
Flange micrometer
Universal vernier caliper
Gear tester
Gear tooth vernier caliper
Correct answer
Gear tooth vernier caliper
21) In which of the following process, heat is created by blacksmith fire
Projection welding
Spot welding
Forge welding
Seam welding
Correct answer
Forge welding
22) Which of the following joint have high corrosion resistance?
Welding joint
Riveted joint
Bolted joint
None of the above
Correct answer
Welding joint
23) Which of the following ray is not produced during welding?
Gamma rays
Infrared ray
Ultraviolet rays
Visible light rays
Correct answer
Gamma rays
24) Which of the following types, is not fillet weld?
lap joint
T-joint
Corner joint
Butt joint
Correct answer
Butt joint
25) The metals having good weldability, in descending order are
Cast steel, iron, carbon steel, cast iron
Carbon steel, iron, cast steel, cast iron
Iron, carbon steel, cast steel, cast iron
Cast iron, iron, carbon steel, cast steel
Correct answer
Cast steel, iron, carbon steel, cast iron
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