Pick out the wrong statement?

5157Chemical EngineeringMedium

AMild steel sheet cannot be spot welded

BIn spot welding, two pieces to be joined are overlapped and placed between two electrodes

CSeam welding, projection welding & spot welding are the classification of electrical resistance

DElectrode tip in spot welding is of copper and the tip diameter should be equal to t (where, t =

Correct answer

A. Mild steel sheet cannot be spot welded

Explanation

The correct answer is Mild steel sheet cannot be spot welded.

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