M

Mr. Dubey • 52.30K Points
Coach 

Q. In order to prevent oxidation and retain molten metal in stud welding which of the following is used?

(A) ceramic rings
(B) metal rings
(C) non-metal rings
(D) flux
Correct : Option (A)

Explanation: 
 in order to prevent oxidation and retain molten metal in stud welding ceramic rings are used.

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