NDT PENETRANT TESTING EXAM 2025
QUESTIONS WITH 100% SOLVED ANSWERS!!
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 Answer - All of the above
Which of the following substantially affect the penetration time of a penetrant
into a surface discontinuity?
a) Density
b) Surface tension and dampening ability
c) Viscosity
d) Relative weight Answer - Viscosity
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 Answer - It is a method which can detect all kinds of discontinuities
, 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
Answer - More efficient than radiographic testing in detecting tiny surface
defects
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 Answer - Pore
Which of the following is classified as final treatment discontinuity?
a) Fatigue crack
b) Stress corrosion crack
c) Lamination
d) Heat treatment crack Answer - Heat treatment crack
Which of the following is classified as service discontinuity?
QUESTIONS WITH 100% SOLVED ANSWERS!!
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 Answer - All of the above
Which of the following substantially affect the penetration time of a penetrant
into a surface discontinuity?
a) Density
b) Surface tension and dampening ability
c) Viscosity
d) Relative weight Answer - Viscosity
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 Answer - It is a method which can detect all kinds of discontinuities
, 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
Answer - More efficient than radiographic testing in detecting tiny surface
defects
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 Answer - Pore
Which of the following is classified as final treatment discontinuity?
a) Fatigue crack
b) Stress corrosion crack
c) Lamination
d) Heat treatment crack Answer - Heat treatment crack
Which of the following is classified as service discontinuity?
