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- Question 1 of 40
1. Question
1. A common application of an aluminium block containing quench cracks is to:
- Question 2 of 40
2. Question
Which of the following is not (!) an advantage of a water washable fluorescent
penetrant process? - Question 3 of 40
3. Question
7. Which type of developer does not (!) provide a contrasting background against which
to view penetrant indications? - Question 4 of 40
4. Question
4. What is the proper technique for removal of excess penetrant from a part when using a
water washable penetrant process? - Question 5 of 40
5. Question
5. Which type of developer would you use to obtain the highest sensitivity test results?
- Question 6 of 40
6. Question
6. What type of penetrant process would be best suited to an application at near freezing
temperatures? - Question 7 of 40
7. Question
8. Which type of developer should not be used with a visible dye penetrant process?
- Question 8 of 40
8. Question
9. Why might steel parts have a greater tendency towards rusting after penetrant testing?
- Question 9 of 40
9. Question
10. The most significant advantage of the visible solvent removable penetrant process is?
- Question 10 of 40
10. Question
12. Which penetrant test processes commonly use the same penetrants?
- Question 11 of 40
11. Question
13. Mercury vapour black lights may be extinguished if the supply voltage drops below
about: - Question 12 of 40
12. Question
14. The output of a mercury vapour black light depends on:
- Question 13 of 40
13. Question
15. When a mercury vapour black light is first turned on, what minimum warm-up time is
normally required? - Question 14 of 40
14. Question
16. When a mercury vapour black light is inadvertently cut off, approximately how long
should it be allowed to cool before attempting to restart? - Question 15 of 40
15. Question
17. A soft aluminium test piece is to be penetrant tested. The piece has previously been
sand blasted to remove tightly adhering soils. What additional surface preparation
should be performed? - Question 16 of 40
16. Question
18. Dried, non-aqueous developers are best removed after penetrant testing by:
- Question 17 of 40
17. Question
19. The most important penetrant test processing time to control is:
- Question 18 of 40
18. Question
20. A penetrant which contains an emulsifier is called:
- Question 19 of 40
19. Question
21. A penetrant which requires a separate emulsification step prior to removal from the
surface of the test piece is called? - Question 20 of 40
20. Question
22. The chief advantage of using a water washable penetrant process is:
- Question 21 of 40
21. Question
23. While performing a fluorescent water washable penetrant test, which of the following
steps should be performed under black light? - Question 22 of 40
22. Question
24. What are the two most important properties in determining the penetrating ability of a
penetrant? - Question 23 of 40
23. Question
25. The human eye is most sensitive to which of the following types of light?
- Question 24 of 40
24. Question
26. What amount of time is normally considered necessary for dark adaption of the eyes
prior to performing a fluorescent penetrant test? - Question 25 of 40
25. Question
Which of the following is not normally recommended?
- Question 26 of 40
26. Question
What is the most common source of penetrant bath contamination?
- Question 27 of 40
27. Question
Which of the following is normally considered acceptable practice?
- Question 28 of 40
28. Question
A penetrant testing method in which an emulsifier, separate from the penetrant, is used
is called: - Question 29 of 40
29. Question
A penetrant testing method in which the degree of washability can be controlled by the
operator is called: - Question 30 of 40
30. Question
Open, shallow discontinuities are best detected by which penetrant testing method?
- Question 31 of 40
31. Question
An advantage of the post emulsifiable penetrant testing process is that:
- Question 32 of 40
32. Question
A disadvantage of the post emulsifiable penetrant process is that:
- Question 33 of 40
33. Question
Acceptable methods to apply emulsifier are:
- Question 34 of 40
34. Question
An advantage of emulsifier application by dipping is:
- Question 35 of 40
35. Question
Emulsification time is less critical for the detection of:
- Question 36 of 40
36. Question
Over washing during excess penetrant removal is less likely with which penetrant
testing process? - Question 37 of 40
37. Question
The fluorescent dyes used in the liquid penetrant testing process are most active when
energised with black light of what wavelengths? (Å stands for angstrom units) - Question 38 of 40
38. Question
Open, shallow discontinuities are best detected by which penetrant testing method?
- Question 39 of 40
39. Question
An advantage of the post emulsifiable penetrant testing process is that:
- Question 40 of 40
40. Question
40. Dry developer is applied