50 Question PT quiz

1. Aluminium alloy test specimens that have been tested by the liquid penetrant method should be thoroughly cleaned after testing because:

2. 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?

3. The ability to visually identify a discontinuity using liquid penetrant depends upon:

4. Which of the statements below concerning the operation of the black light bulbs of the mercury arc type is NOT true?

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

6. A part being processed through a fluorescent water-washable penetrant system was inadvertently left to drain overnight after the application of penetraut. What action should be taken?

7. Which of the statements below best states the danger of using sandblasting for cleaning surfaces to be penetrant tested?

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

9. Shrinkage cracks or hot tears are usually found in what areas of a casting?

10. Cast grey iron would be inspected using what inspection technique:

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

12. A crack type discontinuity will generally appear as:

13. How is the degree of washing assessed when removing fluorescent penetrant:

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

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

16. Localized heating of steel objects can result in

17. Electrostatic application of penetrant materials is preferred because

18. A penetrant indication, suspected of resulting from a small crack, is found in a titanium compressor blade. Which of the following NDT methods would most reliably confirm that a crack is present?

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

20. When penetrant testing for shallow discontinuities using a post emulsification penetrant, the emulsification time should belong enough to:

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

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

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. The flash point of a fluorescent penetrant is:

25. The penetrant indication of a forging lap will normally be:

26. Which of the following penetrant inspection processes is generally agreed to be the most sensitive and reliable?

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

28. Which of the following is TRUE when solvent precleaners are used prior to penetrant inspection?

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

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

31. When penetrant testing Titanium alloys, the materials used in the penetrant system should not contain any constituent quantities of:

32. Pickling is a process used to

33. Penetrant residues may become entrapped under splines, fasteners, rivets, etc. Which of the following is the most likely reaction caused by such a residue?

34. Penetrant dwell time is dependant on:

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

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

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

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

39. Which of the following is a purpose of the drying process used in penetrant testing?

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

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

42. Which penetrant test materials should be highly volatile?

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

44. During a penetrant test, water was used to remove the surface penetrant after the penetrant dwell. The surface:

45. When using a non-aqueous wet developer with a visible (red dye) penetrant, the developer coating for the maximum available sensitivity should be:

46. The factor that has the greatest effect on the speed at which a penetrant indication forms is:

47. When performing a liquid penetrant test using solvent removable visible dye penetrant one method listed below is generally regarded as most suitable for giving accurate test results?

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

49. Which of the following is an advantage of visible dye penetrants over fluorescent penetrants?

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


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