NDT Penetrant Testing
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1. All of the above: Which of the following is a physical property of a good penetrant?
a) Viscosity
b) Surface tension
c) Dampening ability
d) All of the above
2. Viscosity: Which of the following substantially affect the penetration time of a penetrant into a surface discon-
tinuity?
a) Density
b) Surface tension and dampening ability
c) Viscosity
d) Relative weight
3. It is a method which can detect all kinds of discontinuities: Which of the following is
not an advantage of liquid penetrant testing?
a) It is a method which can detect all kinds of discontinuities
b) In principle it is a simple and easy method
c) It is a method application of which is very easy
d) There are limitations like form and size of the part in application of this method
4. More efficient than radiographic testing in detecting tiny surface defects: Which
of the following statements suits to penetrant testing?
a) Penetrant testing method is more flexible than Eddy Current method
b) Less efficient than magnetic particle testing in detecting surface defects in ferromagnetic materials
c) May not detect fatigue cracks
d) More efficient than radiographic testing in detecting tiny surface defects
5. Pore: Which of the following discontinuities occur in the first treatment of a cast material?
a) Fatigue crack
b) Stress corrosion crack
c) Pore
d) Lack of fusion
1/8
, NDT Penetrant Testing
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6. Heat treatment crack: Which of the following is classified as final treatment discontinuity?
a) Fatigue crack
b) Stress corrosion crack
c) Lamination
d) Heat treatment crack
7. Fatique crack: Which of the following is classified as service discontinuity?
a) Fatigue crack
b) Pore
c) Surface tear
d) Lap
8. All of the above: When a specific penetrant testing method has to be adopted, ordinarily which of the
following properties of tested part has to be taken into consideration?
a) Form and size of possible discontinuities on the part
b) Application technique which fits best to the part
c) Surface smoothness of the part
d) All of the above
9. All of the above: Which of the following contaminants prevents the penetrant to penetrate into the surface
discontinuity of the part?
a) Paint
b) Grease
c) Molten or smeared metal
d) All f the above
10. A discrete or continuous smooth line: Which of the following is the indication of cold shut on a
cast material after penetrant testing?
a) A discrete or continuous smooth line
b) An accumulation of small indications
c) A rough deep indication
d) A big and scattered indication
2/8
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1. All of the above: Which of the following is a physical property of a good penetrant?
a) Viscosity
b) Surface tension
c) Dampening ability
d) All of the above
2. Viscosity: Which of the following substantially affect the penetration time of a penetrant into a surface discon-
tinuity?
a) Density
b) Surface tension and dampening ability
c) Viscosity
d) Relative weight
3. It is a method which can detect all kinds of discontinuities: Which of the following is
not an advantage of liquid penetrant testing?
a) It is a method which can detect all kinds of discontinuities
b) In principle it is a simple and easy method
c) It is a method application of which is very easy
d) There are limitations like form and size of the part in application of this method
4. More efficient than radiographic testing in detecting tiny surface defects: Which
of the following statements suits to penetrant testing?
a) Penetrant testing method is more flexible than Eddy Current method
b) Less efficient than magnetic particle testing in detecting surface defects in ferromagnetic materials
c) May not detect fatigue cracks
d) More efficient than radiographic testing in detecting tiny surface defects
5. Pore: Which of the following discontinuities occur in the first treatment of a cast material?
a) Fatigue crack
b) Stress corrosion crack
c) Pore
d) Lack of fusion
1/8
, NDT Penetrant Testing
Study online at https://quizlet.com/_i20dwa
6. Heat treatment crack: Which of the following is classified as final treatment discontinuity?
a) Fatigue crack
b) Stress corrosion crack
c) Lamination
d) Heat treatment crack
7. Fatique crack: Which of the following is classified as service discontinuity?
a) Fatigue crack
b) Pore
c) Surface tear
d) Lap
8. All of the above: When a specific penetrant testing method has to be adopted, ordinarily which of the
following properties of tested part has to be taken into consideration?
a) Form and size of possible discontinuities on the part
b) Application technique which fits best to the part
c) Surface smoothness of the part
d) All of the above
9. All of the above: Which of the following contaminants prevents the penetrant to penetrate into the surface
discontinuity of the part?
a) Paint
b) Grease
c) Molten or smeared metal
d) All f the above
10. A discrete or continuous smooth line: Which of the following is the indication of cold shut on a
cast material after penetrant testing?
a) A discrete or continuous smooth line
b) An accumulation of small indications
c) A rough deep indication
d) A big and scattered indication
2/8
