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- Question 1 of 40
1. Question
1. Most commercial ultrasonic testing is performed at frequencies between:
CorrectIncorrect - Question 2 of 40
2. Question
2. For a transducer with any given Q, resolution increases with:
CorrectIncorrect - Question 3 of 40
3. Question
3. Resolving power of a transducer is directly proportional to its:
CorrectIncorrect - Question 4 of 40
4. Question
4. The term is used to refer to the product of wave velocity and density is:
CorrectIncorrect - Question 5 of 40
5. Question
5. For an ultrasonic beam with normal incidence, the reflection coefficient is given by:
CorrectIncorrect - Question 6 of 40
6. Question
6. For an ultrasonic beam with normal incidence the transmission coefficient is given
by:CorrectIncorrect - Question 7 of 40
7. Question
8. Snell’s law is used to calculate:
CorrectIncorrect - 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]CorrectIncorrect - 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]CorrectIncorrect - 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]CorrectIncorrect - 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]CorrectIncorrect - Question 12 of 40
12. Question
13. Lithium sulphate, barium titanate and lead metaniobate are examples of:
CorrectIncorrect - Question 13 of 40
13. Question
14. The particle motion for compression waves is:
CorrectIncorrect - Question 14 of 40
14. Question
15. Shear waves for ultrasonic testing are usually produced:
CorrectIncorrect - Question 15 of 40
15. Question
16. Near surface resolution can be improved by:
CorrectIncorrect - Question 16 of 40
16. Question
17. The most important requirement for paintbrush transducer is:
CorrectIncorrect - Question 17 of 40
17. Question
18. Which of the following is an advantage of a focused transducer?
CorrectIncorrect - 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?CorrectIncorrect - Question 19 of 40
19. Question
20. A wider entry surface indication or pulse may result from:
CorrectIncorrect - Question 20 of 40
20. Question
21. Which of the following methods might be used to reduce attenuation losses in an
ultrasonic test?CorrectIncorrect - 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:CorrectIncorrect - Question 22 of 40
22. Question
23. An advantage of immersion testing is that:
CorrectIncorrect - Question 23 of 40
23. Question
24. An advantage of immersion testing is that:
CorrectIncorrect - Question 24 of 40
24. Question
25. An ultrasonic data display which shows a plan view presentation of the data is called:
CorrectIncorrect - Question 25 of 40
25. Question
27. An ultrasonic display which shows echo locations and amplitude is called:
CorrectIncorrect - Question 26 of 40
26. Question
28. An advantage of using lower frequencies during ultrasonic testing is that:
CorrectIncorrect - Question 27 of 40
27. Question
29. A method of compensating for the ‘dead zone’ or near surface resolution problems is
to:CorrectIncorrect - 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?CorrectIncorrect - Question 29 of 40
29. Question
31. Materials which can readily be inspected with frequencies of 1 to 5 MHz are:
CorrectIncorrect - 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:CorrectIncorrect - Question 31 of 40
31. Question
33. Forging bursts are most often orientated:
CorrectIncorrect - Question 32 of 40
32. Question
34. The purpose of adding a wetting agent to an immersion bath is:
CorrectIncorrect - 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:CorrectIncorrect - Question 34 of 40
34. Question
36. A calibration for immersion ultrasonic testing of pipe or tubing should establish a
transducer position such as:CorrectIncorrect - Question 35 of 40
35. Question
37. One way of identifying spurious echoes in an ultrasonic test is:
CorrectIncorrect - Question 36 of 40
36. Question
38. During immersion ultrasonic testing of pipe or tubing, spurious echoes may be caused
by:CorrectIncorrect - Question 37 of 40
37. Question
39. Typical frequencies which might be used to perform ultrasonic testing of concrete
are:CorrectIncorrect - Question 38 of 40
38. Question
40. Typical frequencies which might be used to perform ultrasonic testing of ferrous and
non-ferrous welds are:CorrectIncorrect - Question 39 of 40
39. Question
41. Which of the following materials would probably require testing at the lowest
frequency?CorrectIncorrect - Question 40 of 40
40. Question
42. Which of the following is an advantage of contact testing over immersion?
CorrectIncorrect