Which of the following inert gas is used with DC power supply only?
A) argon
B) helium
C) CO2
D) nitrogen
Correct Answer:
Verified
Q9: If the open circuit voltage is 60
Q10: How does the arc voltage V depends
Q11: What is the only difference between Plasma
Q12: In plasma arc welding the gas is?
A)ionized
B)heated
C)magnetized
D)vaporized
Q13: If the total efficiency is 0.35 in
Q15: Which kind of resistance is experienced in
Q16: How are the metals to be welded
Q17: Up to what thickness, can steel be
Q18: In flash butt welding, the forced out
Q19: In friction welding process, materials are joined
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