πŸ“Š Non Destructive Testing and Evaluation
Q. In an A scan presentation, the amplitude of vertical indications on the screen represents the:
  • (A) Amount of ultrasonic sound energy returning to the search unit
  • (B) Distance travelled by the search unit
  • (C) Thickness of material being tested
  • (D) Elapsed time since the ultrasonic pulse was generated
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βœ… Correct Answer: (A) Amount of ultrasonic sound energy returning to the search unit

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