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M

Mr. Dubey • 100.64K Points
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Q. The echo on the cathode ray tube (CRT) which represents the far boundary of the material being tested is called:

  • (A) Hash
  • (B) The initial pulse
  • (C) The ‘main bang’
  • (D) The back wall echo
  • Correct Answer - Option(D)
  • Views: 958
  • Filed under category Non Destructive Testing and Evaluation
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