Q. Which of the following materials of the same alloy is most likely to produce the greatest amount of sound attenuation over a given distance?

(A) A hand forging
(B) A coarse grained casting
(C) An extrusion
(D) The attenuation is equal in all materials

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✅ Correct Answer: (B) A coarse grained casting

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 07:19 pm in Non Destructive Testing and Evaluation

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