53) Which of the following non-destructive testing methods can be used to detect minute surface cracks in a weldment of non-magnetic alloy?
Answer is:
Penetration test
Related ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key
Answer is:
Alternating current
Explanation:
In arc welding process, better arc stability is achieved with Alternating current.
Answer is: