Question 1

Crater cracks typically occur:

Options :

A : In weld metal at the point where the arc terminates.

B : In the HAZ at the point where the arc initiates.

C : In weld metal at the point where the arc initiates.

D : In the HAZ at the point where the arc terminates.

Answer: A

Question 2

To reduce exposure to moisture of low-hydrogen electrodes after they have been removed from the manufacturers packaging, they should be stored:

Options :

A : Under low humidity conditions.

B : In warm holding ovens.

C : In sealed plastic containers.

D : In tightly sealed ovens.

Answer: B

Question 3

The change in shape (deformation) that a test specimen experiences when it is stressed or loaded is called:

Options :

A : Yield.

B : Strain.

C : Stress.

D : Plasticity.

Answer: B

Question 4

To reduce the possibility of cracking, which of the following maximum hardness levels is required for weldments in wet H2S service?

Options :

A : HRC 20

B : HRC 22

C : HRC 25

D : HRC 32

Answer: B

Question 5

When verifying that the filler metal selection is appropriate for the base metal being welded, an inspector should consider:

Options :

A : Chemical composition.

B : Tensile strength to be higher than the base metal.

C : Acceptability of physical properties.

D : Need for postweld heat treatment (PWHT).

Answer: A