Q. Typical ultrasonic testing frequencies are:

(A) 50 kHz to 1 MHz
(B) 200 kHz to 25 MHz
(C) 10 MHz to 100 MHz
(D) 1 MHz to 5 MHz

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✅ Correct Answer: (D) 1 MHz to 5 MHz

Published by Mr. Dubey ⭐ 109.87K Points at 21-Sep-2023 07:19 pm in Non Destructive Testing and Evaluation

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