How are the metals to be welded connected to each other in spot welding?
A) electric contact
B) magnetic field
C) mechanical pressure
D) direct contact
Correct Answer:
Verified
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
Q14: Which of the following inert gas is
Q15: Which kind of resistance is experienced in
Q17: Up to what thickness, can steel be
Q18: In flash butt welding, the forced out
Q19: In friction welding process, materials are joined
Q20: All metallic engineering materials which are_can be
Q21: Friction welding is_process.
A)costly
B)cost saving
C)time consuming
D)highly material selective
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