Multiple Choice
If the total efficiency is 0.35 in arc welding. Then what is the welding speed in mm/sec if the cross-sectional area is 5mm2, welding power is 2 kW and the heat required in melting the metal is 100 J/mm3.
A) 1.4
B) 14
C) 1400
D) 140
Correct Answer:
Verified
Correct Answer:
Verified
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