Question 1

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 2

What term is used to describe the mechanical working of metals using impact blows?

Options :

A : Hammering

B : Mechanical stress relieving

C : Needle gunning

D : Peening

Answer: D

Question 3

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 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

A-number groupings are based upon the:

Options :

A : Chemical composition of the deposited weld metal.

B : Comparable base metal ultimate strength values.

C : Weldability characteristics of the metal.

D : Type and strength of base metal.

Answer: A