For arc welding
A. Alternating current with high frequency is used
B. Alternating current with low frequency is used
C. Direct current is used
D. Any one of these
Answer: Option C
Solution(By Examveda Team)
Arc welding is a welding process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals when cool result in a binding of the metals.For arc welding direct current is used.
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We can use wither AC or DC for arc welding. Please correct the answer.
What is the effect of short arc lenght