Nondestructive Examination Processes

Question 1

Which of the following NDE methods is limited to the detection of surface discontinuities?

a. visual
b. penetrant
c. magnetic particle
d. all
e. none

Answer 1

d. All

Question 2

What NDE method will most likely reveal subsurface porosity?

a. PT
b. MT
c. RT
d. UT
e. All

Answer 2

c. RT

Question 3

What device is used during radiography to indicate the acquired sensitivity of a radiograph?

a. rate meter
b. dosimeter
c. lead screen
d. penetrameter
e. none

Answer 3

d. penetrameter

Question 4

Which of the following NDE methods are suitable for detecting surface cracks?

a. RT
b. VT
c. ET
d. PT
e. all

Answer 4

e. all

Question 5

A test probe containing an alternating current coil is used for which NDE method?

a. RT
b. UT
c. ET
d. MT
e. both c and d

Answer 5

c. ET

Question 6

PT is limited to test objects that:

a. are metallic
b. are porous
c. are magnetic
d. are nonporous
e. have subsurface discontinuities

Answer 6

d. are nonporous

Question 7

MT will discover:

a. surface discontinuities
b. slightly subsurface discontinuities
c. underbead cracking
d. a and b
e. all

Answer 7

d. a and b

Question 8

Underbead cracks can best be detected by:

a. ET
b. MT
c. UT
d. PT
e. all

Answer 8

c. UT