Q. The most common method of demagnetising small test pieces is:

(A) Heat treatment
(B) Shot peening
(C) Passing through an AC coil
(D) Direct contact with AC current

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✅ Correct Answer: (C) Passing through an AC coil

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 07:18 pm in Non Destructive Testing and Evaluation

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