51) For welding dissimilar metals, which of the following properties should not have wide variations.
Answer is:
Thermal expansion
Related ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key
Answer is:
50 - 100 Watts
Answer is:
Penetration test
Answer is:
Alternating current
Explanation:
In arc welding process, better arc stability is achieved with Alternating current.