Ultrasound/Eddy Current/X-Ray Questions

Question 1

What NDT methods may be suitable to use to detect cracks open to the surface in
aluminum forged or cast parts? (4 correct)

Answer 1

Visual
Eddy Current
Dye Penetrant
Ultrasonic

Question 2

What NDT method can be used to separate metals or alloys and their heat-treatment
conditions?

Answer 2

eddy current

Question 3

What NDT method requires little to no preparation

Answer 3

eddy current

Question 4

What nondestructive testing method is suitable for the inspection of most metals,
plastics, and ceramics for surface and subsurface defects?

Answer 4

Ultrasonic

Question 5

A mechanic has completed a bonded honeycomb repair using the potted repair
technique. What NDT methods are used to determine the soundness of the repair? (2
correct)

Answer 5

coin tap test
metallic ring test

Question 6

Name some tools that are commonly used to assist in making visual inspections? (4
correct)

Answer 6

mirror
flashlight
borescope
magnifying glass

Question 7

What NDT method is used to detect surface or near-surface defects in most metals

Answer 7

eddy current

Question 8

What factors are considered essential knowledge for x-ray exposure? (8 correct)

Answer 8

exposure distance
characteristics of X-Ray machine
intensifying screen
size and shape of object
type of defect to be detected
exposure angle
film characteristics
material thickness and density

Question 9

Pick the steps involved in a dye penetrant inspection. (6 correct)

Answer 9

Remove the Penetrant with an emulsifier or
cleaner

Dwell time

Apply developer

Apply the Dye Penetrant

Clean the surface of the part

Inspect and interpret results