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Argyll Ruane Mechanical Engineering Inverse Laws Quiz
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Argyll Ruane Mechanical Engineering Inverse Laws Quiz

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Questions and Answers

If the distance from a large reflector is doubled, what happens to the signal amplitude?

  • It doubles
  • It remains the same
  • It halves (correct)
  • It quadruples

    • What kind of law does the amplitude of large reflectors follow in the far zone?

  • Cube law
  • Square law
  • Direct law
  • Inverse law (correct)

    • Which reflectors follow the inverse square law in the far zone?

  • Medium reflectors
  • Very small reflectors
  • Small reflectors (correct)
  • Large reflectors

    • What happens to the amplitude of small reflectors if the distance is doubled?

    <p>It becomes one quarter</p> Signup and view all the answers

    What are side lobes in relation to ultrasonic testing?

    <p>Secondary lobes that radiate away from the main lobe</p> Signup and view all the answers

    How may side lobes impact ultrasonic testing on rough surfaces?

    <p>Cause unwanted echoes to be received by the probe</p> Signup and view all the answers

    In which type of reflector does the amplitude decrease more rapidly with distance in the far zone?

    <p>Small reflectors</p> Signup and view all the answers

    What could happen on a screen during ultrasonic testing if side lobes are present?

    <p>Unwanted echoes may be mistaken for flaws</p> Signup and view all the answers

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