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Home/ Metallurgy MCQs/Welding Technology
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Welding Technology

Welding Technology

askmemetallurgy provides you lots of fully solved Metallurgical Engineering (Welding Technology) questions and answers with Explanation. All students, freshers can attemp or download Metallurgical Engineering Welding Technology quiz questions with answers as PDF files and eBooks.

1. In arc welding, eyes need to be protected against

spark
infrared rays
ultraviolet rays
b & C
Discuss Here


2. In which of the welding, pool of the molten metal is used

electroslag
submerged arc
MIG
TIG
Discuss Here


3. The main criterion for the selection of electrode diameter in arc welding is

material to be welded
type of welding process
thickness of material
voltage and current used
Discuss Here


4. The material used for coating the electrode is called

protective layer
binder
slag
flux
Discuss Here


5. The most commonly gas used in gas welding is

neutral
oxidizing
carburizing
all of the above
Discuss Here


6. Following gases are used in TIG welding

hydrogen and oxygen
CO2 and H2
argon and helium
argon and neon
Discuss Here


7. Projection welding is

multi-spot welding process
continuous spot welding process
used to form mesh
none of the above
Discuss Here


8. Grey Cast iron is best welded by

TIG
arc
MIG
oxy-acetylene
Discuss Here


9. In resistance welding, the pressure is released

just at the time of passing the current
after completion of current
after the weld cools
the pressure is never applied
Discuss Here


10. Seam welding is

multi-spot welding process
continuous spot welding process
used to form mesh
none of the above
Discuss Here


11. In arc welding, arc is created between the electrode and work by

flow of current
voltage
material characteristics
contact resistance
Discuss Here


12. Open curcuit voltage for arc welding is

18-40 volts
40-95 volts
100-125 volts
130-170 volts
Discuss Here





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