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ASNT Basic Level III > PT Study Questions > Flashcards

PT Study Questions Flashcards

1
Q

1) One disadvantage of liquid penetrant inspection is that:

a. penetrant materials may cause drying and cracking of the skin
b. large subsurface discontinuities with openings to the surface will not form indications
c. it can only be used with nonferrous material
d. the materials are only available in aerosol spray cans

A

a. penetrant materials may cause drying and cracking of the skin

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2
Q

2) Which of the following is not a physical property associated with penetrant materials?

a. Solvent resistance
b. Flash point
c. Viscosity
d. Chemical inertness

A

a. Solvent resistance

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3
Q

3) The removal of smeared metal by chemical processes is called:

a. grit or sand blasting
b. machining
c. etching
d. quenching

A

c. etching

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4
Q

4) A standard classification for a type of developer is:

a. water soluble
b. water washable
c. nonfluorescent
d. solvent removable

A

a. water soluble

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5
Q

5) A penetrant inspection cannot find:

a. surface porosity
b. surface cracks
c. an internal cavity
d. a surface forging lap

A

c. an internal cavity

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6
Q

6) Which of the methods listed below is most applicable for detecting fine, tight surface cracks?

a. Visible dye, water washable
b. Visible dye, postemulsifiable
c. Fluorescent, water washable
d. Fluorescent, postemulsifiable

A

d. Fluorescent, postemulsifiable

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7
Q

7) The term used to describe the total time that penetrant remains on the workpiece is:

a. immersion
b. drain
c. dwell
d. presoak

A

c. dwell

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8
Q

8) Developer assists in the detection of discontinuities by:

a. providing a contrasting background
b. emulsifying the penetrant bleedout
c. providing a clean surface
d. providing a dry surface

A

a. providing a contrasting background

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9
Q

9) Difficulties with removal of a postemulsifiable penetrant during the rinse operation can be overcome by:

a. reapplying a coating of emulsifier
b. using conditioned (soft) water during the washing operation
c. cleaning, then completely reprocessing the part using a longer emulsification time
d. increasing the water temperature during the washing operation

A

c. cleaning, then completely reprocessing the part using a longer emulsification time

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10
Q

10) Excessive removal of penetrant may result in:

a. undetected discontinuities during evaluation
b. an excessive background that inhibits the evaluation process
c. the need to apply the developer twice to obtain significant bleedout
d. small, tight cracks that are easily detected on parts with a smooth surface

A

a. undetected discontinuities during evaluation

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11
Q

11) Which of the following is an advantage of a fluorescent water washable penetrant system compared to a fluorescent postemulsifiable penetrant system?

a. Water washable is superior for testing critical in service parts
b. Water washable has fewer processing steps
c. Only wet developer may be used with postemulsifiable penetrants
d. Water washable penetrants will more readily detect fine, tight cracks in weldments

A

b. Water washable has fewer processing steps

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12
Q

12) Which of the following is not an advantage of postemulsifiable fluorescent penetrants?

a. High sensitivity level to detect very fine defects
b. They are easily removed with water after proper emulsification dwell time
c. They are easily removed from sand castings after proper emulsification dwell time
d. They have higher tolerance to variations in the removal process when compared to water washable penetrants

A

c. They are easily removed from sand castings after proper emulsification dwell time

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13
Q

13) When using the visible, solvent removable process, after the penetrant dwell time, excess penetrant is removed by:

a. spraying solvent on the part and then wiping with a clean, dry rag or paper towel
b. wiping off excess penetrant with a clean, dry rag or paper towel, moistening the part with solvent and rewiping the part
c. wiping off excess penetrant with a clean, dry rag or paper towel, moistening a clean cloth with solvent and rewiping the part
d. wiping off excess penetrant with a clean, dry rag or paper towel, then rewiping with a cloth soaked with solvent

A

c. wiping off excess penetrant with a clean, dry rag or paper towel, moistening a clean cloth with solvent and rewiping the part

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14
Q

14) When using a fluorescent, postemulsifiable penetrant, the best emulsification time is:

a. 10 s
b. 5 s
c. 2 to 3 s
d. determined by experimentation

A

d. determined by experimentation

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15
Q

15) Which type of developer is generally considered the most sensitive for locating fine discontinuities?

a. Solvent suspended
b. Water soluble
c. Water suspended
d. Dry powder

A

a. Solvent suspended

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16
Q

16) Which of the following penetrant systems is the least sensitive?

a. fluorescent, postemulsifiable
b. visible, solvent removable
c. fluorescent, solvent removable
d. fluorescent, water washable

A

b. visible, solvent removable

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17
Q

17) One method for applying dry developer to a localized area of a large part is with:

a. a brush
b. a powder bulb
c. an aerosol can
d. an immersion tank

A

b. a powder bulb

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18
Q

18) Prewash and postwash stations are an advantage when using which of the following penetrant methods?

a. Visible, lipophilic postemulsifiable
b. Fluorescent, hydrophilic postemulsifiable
c. Visible, water washable
d. Fluorescent, lipophilic postemulsifiable

A

b. Fluorescent, hydrophilic postemulsifiable

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19
Q

19) The specific gravity of wet developer is measured with a:

a. developer gage
b. hydrogage
c. balance scale
d. hydrometer

A

d. hydrometer

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20
Q

20) Which of the following describes the comparator that is used to monitor the process performance of the penetrant system?

a. A panel with one half chrome plated containing five crack centers and the other half grit blasted
b. A cracked aluminum block with a groove in the center
c. A chrome plated panel with fine cracks across the face to a depth equal to the plating thickness
d. Ceramic coated block with fine cracks extending around the entire panel

A

a. A panel with one half chrome plated containing five crack centers and the other half grit blasted

21
Q

21) Ultraviolet light intensity is measured with:

a. a digital or analog UV-A meter
b. a photographic light meter
c. an infrared meter
d. a standard white light meter

A

a. a digital or analog UV-A meter

22
Q

22) What instrument is used to check hydrophilic emulsifier concentration?

a. A hydrometer
b. A capillary fill barometer
c. A centrifuge tube
d. A refractometer

A

d. A refractometer

23
Q

23) The penetrant performance characteristic known as sensitivity is defined as the:

a. the contrast between an indication and the background
b. ability to produce a visible indication from a small, tight linear discontinuity
c. volume percentage of penetrant that remains in a discontinuity after processing
d. ability to enter a discontinuity to form an indication

A

b. ability to produce a visible indication from a small, tight linear discontinuity

24
Q

24) A group of nearly rounded indications located in an area that transitions between thick and thin sections of aluminum castings is known as:

a. shrinkage cracks
b. gas holes
c. laminations
d. cracks due to heat treating

A

a. shrinkage cracks

25
Q

25) Processing a part with developer residue remaining from a previous penetrant inspection may result in:

a. an enhanced background contrast
b. a more rapid formation of indications
c. a greatly reduced formation of indications
d. the elimination of a second application of developer

A

c. a greatly reduced formation of indications

26
Q

26) For intermediate dwell times, applying fresh penetrant 15 min before removal assists the process by increasing the:

a. rate of evaporation
b. time required for the removal operation
c. rate of penetration
d. sensitivity of the penetrant

A

c. rate of penetration

27
Q

27) How does an increase in temperature affect the viscosity of a penetrant?

a. It becomes more viscous and decreases in flow rate
b. It becomes less viscous and decreases in flow rate
c. It becomes more viscous and increases in flow rate
d. It becomes less viscous and increases in flow rate

A

d. It becomes less viscous and increases in flow rate

28
Q

28) Repeated or cyclic loads below the yield strength of a material can cause:

a. service cracking
b. fatigue cracking
c. intergranular cracking
d. thermal cracking

A

b. fatigue cracking

29
Q

29) Grinding checks or cracks are caused by:

a. localized overheating
b. a slow feed rate
c. unequal heating or cooling
d. rapid cooling from high temperatures

A

a. localized overheating

30
Q

30) Elongated inclusions found in bar stock are called:

a. seams
b. laps
c. stringers
d. contaminants

A

c. stringers

31
Q

31) An advantage of the postemulsification fluorescent penetrant process is that it:

a. is very good on rough surfaces such as sand castings
b. has fewer operations than other penetrant processes
c. can be used on anodized surfaces
d. can be used to detect wide, shallow discontinuities

A

d. can be used to detect wide, shallow discontinuities

32
Q

32) What comparison standard has control over the depth and quantity of cracks?

a. A stainless steel test panel
b. A cracked aluminum test block
c. A ceramic test block
d. A grit blast panel

A

a. A stainless steel test panel

33
Q

33) Compared to a certified Level I inspector, a Level II inspector:

a. can process all forms of a product
b. is authorized to approve all penetrant procedures
c. requires more formal training hours and work experience
d. can determine the acceptance criteria for a part

A

c. requires more formal training hours and work experience

34
Q

34) A limitation on materials used to inspect nickel alloy welds in a nuclear or pressure vessel system is that the penetrant materials should have:

a. sulfur and halogen residual of 10% or less by weight
b. sulfur, chlorine and fluorine residual of 1% or less by weight
c. chlorine and halogen residual of 5% or less by weight
d. halogen and fluoride residual of 10% or less by weight

A

b. sulfur, chlorine and fluorine residual of 1% or less by weight

35
Q

35) A weld discontinuity that appears starshaped with small indications emanating from a central point is a:

a. burst
b. grinding crack
c. crater crack
d. heat affected zone (HAZ) crack

A

c. crater crack

36
Q

36) Multiple round or nearly round indications scattered on a weld are the result of:

a. crater pits
b. undercut
c. porosity
d. weld laps

A

c. porosity

37
Q

37) Which of the following would not be the cause of a nonrelevant indication?

a. Penetrant on the inspection table
b. An improperly cleaned surface
c. A corrosion crack
d. Penetrant trapped in the threads of a part

A

c. A corrosion crack

38
Q

38) The periodic checks performed to assure that the penetrant testing system is functioning are called:

a. process control tests
b. maintenance tests
c. certification test
d. performance evaluations

A

a. process control tests

39
Q

39) A relevant indication in a casting may be caused by:

a. a burst
b. a crater crack
c. laminations
d. porosity

A

d. porosity

40
Q

40) The relative size of a surface discontinuity is estimated based on the indication intensity and the:

a. amount of bleedout
b. size and shape
c. direction of bleedout
d. area located

A

a. amount of bleedout

41
Q

41) Which of the following is a nonrelevant indication found during penetrant inspection?

a. Marks on the part due to penetrant on the inspector’s hands
b. A press fit insert ring in the bore of a shaft
c. Linear indications on a heat treated weldment
d. Dry developer residue

A

b. A press fit insert ring in the bore of a shaft

42
Q

42) A visual method used as acceptance criteria for a part uses:

a. sized wires
b. a calibrated scale
c. a testing and monitoring panel
d. referenced photographs

A

d. referenced photographs

43
Q

43) The purpose of a penetrant system monitor is to provide:

a. a method of estimating the cost of inspection
b. verification of the overall processing system performance
c. standardization for performing process controls
d. the means to reject test objects

A

b. verification of the overall processing system performance

44
Q

44) Using a weld standard for interpretation of indications provides:

a. reliable acceptance criteria
b. an accurate method to determine repair costs
c. the format for a test report
d. the means to reject linear indications

A

a. reliable acceptance criteria

45
Q

45) Dry developer is checked for fluorescent contamination by:

a. comparing the in-use developer to new material
b. processing a testing and monitoring panel
c. a laboratory examination for chemical composition
d. viewing under an ultraviolet light for fluorescent specks

A

d. viewing under an ultraviolet light for fluorescent specks

46
Q

46) Ultraviolet lights over a fluorescent penetrant wash station are used to:

a. verify a uniform coating of penetrant has been applied to the part
b. verify the emulsifier covers the entire surface
c. monitor the removal of surface penetrant
d. check the cleanliness of parts before processing

A

c. monitor the removal of surface penetrant

47
Q

47) An advantage of inspecting forgings with the penetrant process is that:

a. it can detect any type of discontinuity associated with forgings
b. there are no limitations to the part size or shape
c. forging scale does not interfere with the test
d. penetrant materials do not have any adverse affects on any alloy that is forged

A

b. there are no limitations to the part size or shape

48
Q

48) Discontinuities that may be found in aluminum extrusions are:

a. porosity and inclusions
b. laminations
c. cracks
d. laps and seams

A

d. laps and seams

49
Q

49) Which of the following discontinuities are associated with forgings?

a. Tears
b. Cracks
c. Bursts
d. Blow holes

A

c. Bursts

ASNT Basic Level III (7 decks)

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