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UT General Exam

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  1. Question 1 of 40
    1. Question

    1. Most commercial ultrasonic testing is performed at frequencies between:

    Correct
    Incorrect
  2. Question 2 of 40
    2. Question

    2. For a transducer with any given Q, resolution increases with:

    Correct
    Incorrect
  3. Question 3 of 40
    3. Question

    3. Resolving power of a transducer is directly proportional to its:

    Correct
    Incorrect
  4. Question 4 of 40
    4. Question

    4. The term is used to refer to the product of wave velocity and density is:

    Correct
    Incorrect
  5. Question 5 of 40
    5. Question

    5. For an ultrasonic beam with normal incidence, the reflection coefficient is given by:

    Correct
    Incorrect
  6. Question 6 of 40
    6. Question

    6. For an ultrasonic beam with normal incidence the transmission coefficient is given
    by:

    Correct
    Incorrect
  7. Question 7 of 40
    7. Question

    8. Snell’s law is used to calculate:

    Correct
    Incorrect
  8. Question 8 of 40
    8. Question

    9. Calculate the refracted shear wave angle in steel [VS = 0.323cm/microsec] for an
    incident longitudinal wave of 37.9 degrees in Plexiglas [VL = 0.267cm/microsec]

    Correct
    Incorrect
  9. Question 9 of 40
    9. Question

    10. Calculate the refracted shear wave angle in steel [VS = 0.323cm/microsec] for an
    incident longitudinal wave of 45.7 degrees in Plexiglas [VL = 0.267cm/microsec]

    Correct
    Incorrect
  10. Question 10 of 40
    10. Question

    11. Calculate the refracted shear wave angle in aluminium [VS = 0.31cm/microsec] for an
    incident longitudinal wave of 43.5 degrees in Plexiglas [VL = 0.267cm/microsec]

    Correct
    Incorrect
  11. Question 11 of 40
    11. Question

    12. Calculate the refracted shear wave angle in aluminium [VS = 0.31cm/microsec] for an
    incident longitudinal wave of 53 degrees in Plexiglas [VL = 0.267cm/microsec]

    Correct
    Incorrect
  12. Question 12 of 40
    12. Question

    13. Lithium sulphate, barium titanate and lead metaniobate are examples of:

    Correct
    Incorrect
  13. Question 13 of 40
    13. Question

    14. The particle motion for compression waves is:

    Correct
    Incorrect
  14. Question 14 of 40
    14. Question

    15. Shear waves for ultrasonic testing are usually produced:

    Correct
    Incorrect
  15. Question 15 of 40
    15. Question

    16. Near surface resolution can be improved by:

    Correct
    Incorrect
  16. Question 16 of 40
    16. Question

    17. The most important requirement for paintbrush transducer is:

    Correct
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  17. Question 17 of 40
    17. Question

    18. Which of the following is an advantage of a focused transducer?

    Correct
    Incorrect
  18. Question 18 of 40
    18. Question

    19. Which of the following is intended to be a ‘first cut’ or rough inspection device to be
    followed by more precise evaluation of any discontinuities found?

    Correct
    Incorrect
  19. Question 19 of 40
    19. Question

    20. A wider entry surface indication or pulse may result from:

    Correct
    Incorrect
  20. Question 20 of 40
    20. Question

    21. Which of the following methods might be used to reduce attenuation losses in an
    ultrasonic test?

    Correct
    Incorrect
  21. Question 21 of 40
    21. Question

    22. When comparing discontinuity echoes to equivalent flat bottom hole echoes in
    materials with similar impedance, surface finish and attenuation:

    Correct
    Incorrect
  22. Question 22 of 40
    22. Question

    23. An advantage of immersion testing is that:

    Correct
    Incorrect
  23. Question 23 of 40
    23. Question

    24. An advantage of immersion testing is that:

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  24. Question 24 of 40
    24. Question

    25. An ultrasonic data display which shows a plan view presentation of the data is called:

    Correct
    Incorrect
  25. Question 25 of 40
    25. Question

    27. An ultrasonic display which shows echo locations and amplitude is called:

    Correct
    Incorrect
  26. Question 26 of 40
    26. Question

    28. An advantage of using lower frequencies during ultrasonic testing is that:

    Correct
    Incorrect
  27. Question 27 of 40
    27. Question

    29. A method of compensating for the ‘dead zone’ or near surface resolution problems is
    to:

    Correct
    Incorrect
  28. Question 28 of 40
    28. Question

    30. When testing a test piece with parallel front and back surfaces, no back wall echo can
    be obtained. Which of the following actions might enable you to obtain a back wall
    echo?

    Correct
    Incorrect
  29. Question 29 of 40
    29. Question

    31. Materials which can readily be inspected with frequencies of 1 to 5 MHz are:

    Correct
    Incorrect
  30. Question 30 of 40
    30. Question

    32. When variations are noticed in the front surface reflection, the test piece should be
    inspected for possible near surface discontinuities by:

    Correct
    Incorrect
  31. Question 31 of 40
    31. Question

    33. Forging bursts are most often orientated:

    Correct
    Incorrect
  32. Question 32 of 40
    32. Question

    34. The purpose of adding a wetting agent to an immersion bath is:

    Correct
    Incorrect
  33. Question 33 of 40
    33. Question

    35. During immersion testing of pipe or tubing the incident longitudinal wave angle must
    be limited to a narrow range. The reason for the upper limit is:

    Correct
    Incorrect
  34. Question 34 of 40
    34. Question

    36. A calibration for immersion ultrasonic testing of pipe or tubing should establish a
    transducer position such as:

    Correct
    Incorrect
  35. Question 35 of 40
    35. Question

    37. One way of identifying spurious echoes in an ultrasonic test is:

    Correct
    Incorrect
  36. Question 36 of 40
    36. Question

    38. During immersion ultrasonic testing of pipe or tubing, spurious echoes may be caused
    by:

    Correct
    Incorrect
  37. Question 37 of 40
    37. Question

    39. Typical frequencies which might be used to perform ultrasonic testing of concrete
    are:

    Correct
    Incorrect
  38. Question 38 of 40
    38. Question

    40. Typical frequencies which might be used to perform ultrasonic testing of ferrous and
    non-ferrous welds are:

    Correct
    Incorrect
  39. Question 39 of 40
    39. Question

    41. Which of the following materials would probably require testing at the lowest
    frequency?

    Correct
    Incorrect
  40. Question 40 of 40
    40. Question

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

    Correct
    Incorrect
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