Q. An effective method of testing for air bubbles in a pipe is to:

(A) Measure pipe back wall echo amplitude
(B) Analyze the frequency spectrum of pipe back wall echo
(C) Transmit sound across pipe diameter and look for echo loss
(D) Transmit sound across pipe diameter and look for echoes from air bubbles

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✅ Correct Answer: (D) Transmit sound across pipe diameter and look for echoes from air bubbles

Published by Mr. Dubey ⭐ 104.82K Points at 21-Sep-2023 07:20 pm in Non Destructive Testing and Evaluation

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