A. Tungsten inert gas
B. Metal inert gas
C. Electroslag
D. Submerged arc
Ans-: C
Q.2 In arc welding, arc is created between the electrode and work by the ___.
A. Contact resistance
B. Voltage
C. Flow of current
D. Workpiece
Ans-: A
Q.3 Flux is a material which is used for ?
A. Slow consumption of electrode
B. Higher performance
C. Coating the electrode
D. All of the above
Ans-: C
Q.4 In arc welding, eyes need to be protected against __.
A. Gases
B. Infra-red rays
C. Ultraviolet rays
D. B + C
Ans-: D
Q.5 Which of the following is not a type of welding ?
A. Gas welding
B. Resistance welding
C. Thermit welding
D. Forge welding
E. Current welding
Ans-: E
Q.6 The arc welding is done with the ______ electrode.
A. Metal
B. Carbon or metal
C. Aluminum
D. Tungsten
Ans-: B
Q.7 Which of the following welding process uses non-consumable electrode?
A. TIG welding
B. MIG welding
C. Laser welding
D. Plasma welding
Ans-: A
Q.8 For arc welding, the open circuit voltage is of the order of ___.
A. 10 to 40 volts
B. 40 to 95 volts
C. 75 to 95 volts
D. 5 to 10 volts
Ans-: B
Q.9 In arc welding , the selection of diameter of electrode is based on which criterion?
A. Current uses
B. Material to be weld
C. Thickness of material
D. Type of welding process
Ans-: C
Q.10 The material which is used for coating the electrode is called ?
A. Flux
B. Coating material
C. Slag
D. Binder
Ans-: A
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