50 Question PT quiz

1. The emulsifier in the post-emulsifiable penetrant method:

2. Developer assists in the detection of penetrants retained in discontinuities by aiding the:

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

4. The most difficult developers to remove are the

5. Which penetrant test materials should be highly volatile?

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

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

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

9. The penetrant indication for a cold shut on the surface of a casting will be:

10. One of the differences between the hydrophffic and lipophilic post-emulsifiable penetrant systems is:

11. The ability of a penetrant to detect surface breaking discontinuities and provide an indication visible to the unaided eye is called:

12. 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?

13. The function of the emulsifier in the post-emulsification penetrant method is to:

14. Which of the following is not good practice when penetrant testing?

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

16. Developing powder should always be:

17. Pickling is a process used to

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

20. 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:

21. Electrostatic application of penetrant materials is preferred because

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

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

24. What is the most common purpose of non-destructive testing?

25. Which of the following is an advantage of fluorescent penetrants over visible type penetrants?

26. 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?

27. The emulsifier is used:

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

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

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

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

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

33. Which of the following is TRUE concerning vapour degreasing prior to penetrant inspection?

34. An NDT procedure specifies a minimum penetrant dwell period of 30 minutes. What dwell period should be used if the component was to be inspected at a temperature of 5 degrees Celsius?

35. The flash point of a fluorescent penetrant is:

36. The sulphur found in penetrant materials are detrimental to:

37. Which of the items listed below is not an advantage of the liquid penetrant test method?

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

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

40. 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?

41. Which of the following methods for applying non-aqueous developer is normally considered most effective?

42. Fluorescent materials used in fluorescent penetrants respond most actively to radiant energy, of a wavelength of approximately:

43. Which of the following physical properties, more than any other, determines what makes material a good penetrant?

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

45. Prior to penetrant testing of a soft metal part, which of the following cleaning methods would best remove any smeared metal?

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

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

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

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

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

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