Question 1

One of the main differences between welding nickel alloys and austenitic stainless steels is that with nickel alloys:

Options :

A : Interpass temperature control is not needed.

B : There is less susceptibility to cracking from contaminants.

C : There is less susceptibility to lack of fusion.

D : The weld pool tends to be sluggish.

Answer: D

Question 2

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 3

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 4

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 5

Eddy current can be used to measure the:

Options :

A : Thickness of parent metal below alloy metal claddings.

B : Thickness of surface coatings or cladding thickness.

C : Extent of bonding of coatings or claddings.

D : Holidays in coatings or claddings.

Answer: B