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Liquid Penetrant Testing Level 2 (PT-2) General Examination Answers to Question

1.

A common application of an aluminum block containing quench cracks is to:

 
 
 
 

2.

Which of the following is not a (!) advantage of a water washable fluorescent penetrant process?

 
 
 
 

3.

When using a water-washable penetrant testing process, why should the water rinse temperature remain constant?

 
 
 
 

4.

What is the proper technique for the removal of excess penetrant from a part when using a water-washable penetrant process?

 
 
 
 

5.

Which type of developer would you use to obtain the highest sensitivity test results?

 
 
 
 

6.

What type of penetrant process would be best suited to an application at near-freezing temperatures?

 
 
 
 

7.

Which type of developer does not (!) provides a contrasting background against which to view penetrant indications?

 
 
 
 

8.

Which type of developer should not be used with a visible dye penetrant process?

 
 
 
 

9.

Why might steel parts have a greater tendency towards rusting after penetrant testing?

 
 
 
 

10.

The most significant advantage of the visible solvent removable penetrant process is?

 
 
 
 

11.

Correct developer coating thickness is indicated by:

 
 
 
 

12.

Which penetrant test processes commonly use the same penetrants?

 
 
 
 

13.

Mercury vapor black lights may be extinguished if the supply voltage drops below about:

 
 
 
 

14.

The output of a mercury vapour blacklight depends on:

 
 
 
 

15.

When a mercury vapour black light is first turned on, what minimum warm-up time is normally required?

 
 
 
 

16.

When a mercury vapour black light is inadvertently cut off, approximately how long should it be allowed to cool before attempting to restart?

 
 
 
 

17.

A soft aluminum test piece is to be penetrant tested. The piece has previously been sandblasted to remove tightly adhering soils. What additional surface preparation should be performed?

 
 
 
 

18.

Dried, non-aqueous developers are best removed after penetrant testing by:

 
 
 
 

19.

The most important penetrant test processing time to control is:

 
 
 
 

20.

A penetrant that contains an emulsifier is called:

 
 
 
 

21.

A penetrant that requires a separate emulsification step prior to removal from the surface of the test piece is called?

 
 
 
 

22.

The chief advantage of using a water-washable penetrant process is:

 
 
 
 

23.

While performing a fluorescent water-washable penetrant test, which of the following steps should be performed under black light?

 
 
 
 

24.

What are the two most important properties in determining the penetrating ability of a penetrant?

 
 
 
 

25.

The human eye is most sensitive to which of the following types of light?

 
 
 
 

26.

What amount of time is normally considered necessary for dark adaption of the eyes prior to performing a fluorescent penetrant test?

 
 
 
 

27.

Which of the following is not normally recommended?

 
 
 
 

28.

What is the most common source of penetrant bath contamination?

 
 
 
 

29.

Which of the following is normally considered an acceptable practice?

 
 
 
 

30.

A penetrant testing method in which an emulsifier, separate from the penetrant, is used is called:

 
 
 
 

31.

A penetrant testing method in which the degree of washability can be controlled by the operator is called:

 
 
 
 

32.

Open, shallow discontinuities are best detected by which penetrant testing method?

 
 
 
 

33.

An advantage of the post emulsifiable penetrant testing process is that:

 
 
 
 

34.

A disadvantage of the post emulsifiable penetrant process is that:

 
 
 
 

35.

Acceptable methods to apply emulsifier are:

 
 
 
 

36.

An advantage of emulsifier application by dipping is:

 
 
 
 

37.

Emulsification time is less critical for the detection of:

 
 
 
 

38.

Over-washing during excess penetrant removal is less likely with which penetrant testing process?

 
 
 
 

39.

The fluorescent dyes used in the liquid penetrant testing process are most active when energized with black light of what wavelengths? (Å stands for angstrom units)

 
 
 
 

40.

Application of penetrant to a test piece may be by:

 
 
 
 

41.

The penetrant process best suited to use on parts with rough surfaces is:

 
 
 
 

42.

The penetrant process best suited for the detection of very fine discontinuities is:

 
 
 
 

43.

The penetrant process best suited for use on parts with keyways and threads is:

 
 
 
 

44.

Indications that are caused by the design or construction of the test piece are called?

 
 
 
 

45.

Indications that are caused by something other than a discontinuity are called:

 
 
 
 

46.

Which of the following discontinuities would you not expect to find in a casting?

 
 
 
 

47.

Which type of casting is made in a metal mould?

 
 
 
 

48.

The act of determining the cause of an indication is called

 
 
 
 

49.

The act of determining the effect of a discontinuity of the usefulness of a part is called:

 
 
 
 

50.

Contaminants that are commonly limited in penetrant materials are:

 
 
 
 

51.

1.2.2 Liquid Penetrant Testing Level 2 (PT-2) Specific Examination
The most likely result of a too-short dwell time of an emulsifier is:

 
 
 
 

52.

Diffusion of a lipophilic emulsifier penetrant into the test piece surface is stopped by:

 
 
 
 

53.

When using a post emulsifiable penetrant process, it is important to drain as much excess penetrant as possible from the surface of a test piece that has been immersed in the penetrant because:

 
 
 
 

54.

When a drain-dwell technique is used during emulsification, what two mechanisms are responsible for combining the emulsifier and penetrant?

 
 
 
 

55.

When performing a post emulsifiable penetrant test, the test piece does not rinse acceptable clean during normal processing. What should be done?

 
 
 
 

56.

The adequacy of excess penetrant removal, using water-washable penetrant process, is judged and controlled by:

 
 
 
 

57.

Another name for a self-emulsifying penetrant process is:

 
 
 
 

58.

Which of the following is a function of an emulsifier?

 
 
 
 

59.

When viewed under black light, the developer appears?

 
 
 
 

60.

Penetrant developers are used in which of the following forms?

 
 
 
 

61.

Which of the following developers requires the test piece to be dried prior to its application?

 
 
 
 

62.

An effect of a thick developer coating might be:

 
 
 
 

63.

Why is it important to view the test piece shortly after the developer application and periodically through the development time?

 
 
 
 

64.

Which of the following is an advantage of a dry developer?

 
 
 
 

65.

Why is the need for a dry surface prior to developer application more of a disadvantage with a dry developer than with a non-aqueous wet developer?

 
 
 
 

66.

The preferred method of application of aqueous wet developer is:

 
 
 
 

67.

It is easier to control developer coating thickness with a soluble developer than a water suspendable one because:

 
 
 
 

68.

Which of the following is not an advantage of an aqueous wet developer?

 
 
 
 

69.

A disadvantage of water-soluble developers is:

 
 
 
 

70.

Fluorescent penetrant indications are more visible than color contrast penetrant indications because:

 
 
 
 

71.

The tendency of a liquid to be drawn into small discontinuities is called:

 
 
 
 

72.

A liquid that reacts with a penetrant to render it water washable is called:

 
 
 
 

73.

A water tolerance test would be performed on:

 
 
 
 

74.

A problem that could be caused by a penetrant with abnormally high water content is:

 
 
 
 

75.

Deterioration of penetrant material performance may be caused by which of the following?

 
 
 
 

76.

When adding water to a penetrant, the water tolerance limit is indicated when:

 
 
 
 

77.

Possible degradation of penetrant materials performance is often checked by:

 
 
 
 

78.

The most common biological effect of penetrant materials on personnel is:

 
 
 
 

79.

Hydrophilic emulsifiers may be applied by:

 
 
 
 

80.

The term ‘drag out losses’ refers to:

 
 
 
 

81.

The diffusion mechanism is used in the operation of:

 
 
 
 

82.

The concentration of a hydrophilic emulsifier may be measured by:

 
 
 
 

83.

When applied by immersion, an optimum concentration for a hydrophilic emulsifier is about?

 
 
 
 

84.

Does hydrophilic emulsifier contact time depend on which of the following?

 
 
 
 

85.

How is the correct emulsifier contact time determined?

 
 
 
 

86.

Which of the following is used in connection with hydrophilic emulsifiers applied by immersion?

 
 
 
 

87.

Which of the following is a disadvantage of a hydrophilic emulsifier?

 
 
 
 

88.

During excess penetrant removal, a water spray pre-rinse might be used with:

 
 
 
 

89.

Re-cycling of penetrant and rinse water is facilitated with which of the following emulsifier types?

 
 
 
 

90.

Which type of emulsifier is intended for use without the dilution?

 
 
 
 

91.

Halogen content of penetrant materials is limited because of the possibility of stress corrosion cracking in which of the following materials?

 
 
 
 

92.

The most likely cause of loss of performance in a lipophilic emulsifier is:

 
 
 
 

93.

In performing a water content test of a lipophilic emulsifier per ASTM D-95, what solvent is used?

 
 
 
 

94.

Which of the following developers would you expect to be the least sensitive?

 
 
 
 

95.

Which of the following developers would you expect to be the most sensitive?

 
 
 
 

96.

Which of the following developers would you expect to be the least sensitive?

 
 
 
 

97.

Which of the following developers would you expect to be the most sensitive?

 
 
 
 

98.

Dual-purpose penetrants are viewed under what type of light?

 
 
 
 

99.

When is it possible to detect slightly sub-surface defects using penetrant testing?

 
 
 
 

100.

Which of the following would be classed as an in-service fault?

 
 
 
 

Question 1 of 100

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