Q. Echo amplitude losses may be caused by:

(A) Entry surface roughness
(B) Coarse grain size
(C) Discontinuity orientation
(D) All of the above

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✅ Correct Answer: (D) All of the above

Published by Mr. Dubey ⭐ 104.84K Points at 21-Sep-2023 07:20 pm in Non Destructive Testing and Evaluation

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