Q. When inspecting a long bar with a longitudinal wave from one end, a series of additional echoes are seen immediately after the bottom surface reflection. these are most likely:

(A) Refracted shear and longitudinal waves caused by beam spread
(B) Flaw indications
(C) Multiples of the back surface reflection
(D) None of the above

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✅ Correct Answer: (D) None of the above

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 07:20 pm in Non Destructive Testing and Evaluation

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