M

Mr. Dubey • 52.30K Points
Coach 

Q. For grey cast iron, which of the following welding methods is preferable?

(A) mig
(B) submerged arc
(C) gas flame
(D) electric arc
Correct : Option (A)

Explanation: 
 as the percentage of carbon in grey cast iron is less, therefore mig welding is preferable.

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