50 Question PT quiz

1. The greater the blacklight intensity and the lower the ambient white light intensity

2. Water-washable liquid penetrants differ from post-emulsification penetrants in that water-washable penetrants:

3. In NDT, a response or evidence of response which requires interpretation to determine its significance is called

4. When penetrant testing for shallow discontinuities using a post emulsification penetrant, the emulsification time should be long enough to:

5. Developing powder should always be:

6. When conducting a penetrant test, spherical indications on the surface of a part could be indicative of:

7. Which of the following is TRUE concerning final inspection after fluorescent penetrant processing?

8. Which of the following is a possible cause for false penetrant indications?

9. Emulsifier time:

10. Which of the statements below apply to the liquid penetrant method of testing?

11. If the ultra-violet lamp being used for inspection has a cracked filter:

12. Which of the following is not a form in which penetrant developer is commonly available?

13. Which of the following is a discontinuity that might be found in a forging?

14. Which of the following discontinuities could be classified as a service induced discontinuity?

15. Which of the following disconthiuities could be classified as a finishing processing discontinuity?

16. An important difference between non-water-washable penetrants and water-washable penetrants is that:

17. The tendency of a liquid penetrant to enter a discontinuity is primarily related to:

18. Rejection or acceptance of parts should be based on which of the following, in absence of written acceptance criteria?

19. Which of the following is not a recommended method of removing grease from a surface of a part to be penetrant tested?

20. An important difference between non water soluble penetrants and water washable penetrants is:

21. The excess penetrant removal technique that removes the most penetrant from discontinuities is:

22. Which of the foflowing could be a source of false indications on a test specimen?

23. The part is an aluminium casting. Description - the casting has a very complex design. In one section there is a flat area having a thickness of 3 mm (1/8). In the centre of this area is a round section, 50mm (2) thick and 25mm (1) in diameter. There are linear indications about one-half the distance around the base where it joins into the thin section. The indication is termed:

24. Developer assists in the detection of the visible dye penetrant test indications by:

25. A part has been tested using a solvent-removable visible (red dye) penetrant. Which of the following is true if the part is to be tested at a later date?

26. Penetrant dwell time is dependant on:

27. Which of the following is the most cost effective method of application of penetrant when fine fatigue cracks are to be detected?

28. The term non-relevant indication is used to describe certain types of penetrant testing indications. Which of the following would be a typical non-relevant indication?

29. Which of the following discontinuities might be found in a welded fabrication?

30. Which of the following contaminants could affect the sensitivity of a penetrant?

31. Which of the following (on the basis of cost-efficiency) NOT recommended for penetrant application and dwell?

32. Which of the following discontinuities are all castings discontinuities?

33. Which of the following is an advantage of solvent wipe methods over water washing?

34. A term used to define defect is:

35. A commonly-used method of checking the overall performance of a penetrant system is:

36. The main purpose of the filter on a black light source is to:

37. Tests for penetrant sensitivity may best be conducted using:

38. When improper processing causes inspection difficulties, what should the inspector do?

39. Why is it advisable to have a black light installed at the wash station?

40. Which of the following is a recommended method of application of lipophilic emulsiflers?

41. Prior to penetrant testing of a previously machined soft metal part, which of the cleaning methods listed below would best remove any smeared metal that could mask discontinuities?

42. Which of the following statements concerning developers is NOT true?

43. Which of the following discontinuities could be classified as an inherent discontinuity often found in cast material?

44. When post-emulsifiable penetrant is kept in open tanks for application by immersion:

45. Which of the following statements concerning contaminating materials on the surface of a part to be penetrant tested is not true?

46. Which of the following discontinuities would be impossible to detect using a liquid penetrant test?

47. Dry developer should be applied:

48. A fluorescent water-washable test system uses spray application of penetrant and a storm cabinet (cloud chamber) for application of dry developer. At what locations should black light be available?

49. Which of the following is a discontinuity that might be found in rolled bar stock?

50. A part to be penetrant tested has just been removed from a vapour degreaser. What is the next step in processing?

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