I.G.K6

Question 1

8349-1. For which of the following reasons would a water break test be conducted?

Answer 1

To make certain that a bare metal surface is thoroughly clean.

Question 2

8360. The lifting or flaking of the metal at the surface due to delamination of grain boundaries caused by the pressure of corrosion residual product buildup is called?

Answer 2

Exfoliation.

Question 3

8363. Intergranular corrosion in aluminum alloy parts?

Answer 3

Can’t always be detected by surface indications.

Question 4

8363-1. Which of the following may not be detectable even by careful visual inspection of the surface of aluminum alloy parts or structures?

Answer 4

Intergranular corrosion.

Question 5

8364. What may be used to remove corrosion from highly stressed steel surfaces?

Answer 5

Fine grit aluminum oxide.