Which of the following is an advantage of contact testing over immersion?

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Mr. Dubey

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Q. Which of the following is an advantage of contact testing over immersion?

(A) Ability to maintain uniform coupling on rough surface
(B) Longer dead time near the front surface of the test piece
(C) Ease of field use
(D) Ability to continuously vary incident wave angle during test

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✅ Correct Answer: (C) Ease of field use

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