Q. When variations are noticed in the front surface reflection, the test piece should be inspected for possible near surface discontinuities by:

(A) Using a lower frequency transducer
(B) Using a higher pulse energy
(C) Inspecting from the opposite side
(D) Calibrating on a smaller diameter flat bottom hole

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✅ Correct Answer: (C) Inspecting from the opposite side

Published by Mr. Dubey ⭐ 104.82K Points at 21-Sep-2023 07:19 pm in Non Destructive Testing and Evaluation

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