Argyll Ruane Mechanical Engineers Basic Principles Quiz
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Questions and Answers

What is the instrument called that produces the sound energy in ultrasonic testing?

  • Probe (correct)
  • Defect
  • LCD
  • Screen
  • Where are the echoes shown in a flaw detector?

  • Back wall
  • Crystal
  • Probe
  • Flat screen LCD (correct)
  • Which part of the test specimen reflects some of the sound back, producing an echo at B1?

  • Surface A
  • Back wall C
  • Probe
  • Defect at B (correct)
  • What does the echo at C1 represent in ultrasonic testing?

    <p>'C' back wall reflection</p> Signup and view all the answers

    What is the result of sound energy reflecting off the front surface of the specimen along with the crystal and initial pulse?

    <p>Echo at A1</p> Signup and view all the answers

    What is the most common technique used in ultrasonic testing?

    <p>Pulse echo technique</p> Signup and view all the answers

    How is the mechanism of sound waves in ultrasonic testing similar to audible sound waves?

    <p>They reflect back when blocked by obstacles</p> Signup and view all the answers

    What determines the strength of the echo in ultrasonic testing?

    <p>The size of the obstacle</p> Signup and view all the answers

    How can the distance to an obstacle be determined in ultrasonic testing?

    <p>By measuring the time lapse between sending and receiving the sound wave</p> Signup and view all the answers

    In ultrasonic testing, why would an echo from a defect be received earlier than an echo from the back wall?

    <p>Because sound doesn't travel as far to reach defects</p> Signup and view all the answers

    What does the depth of a defect in ultrasonic testing depend on?

    <p>The distance traveled by the sound wave</p> Signup and view all the answers

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