Free AWS CWI Questions and Answers

Question 1

What discontinuities are visible when inspected visually?

Accepted Answer

Cracks

Answer

Undercut

Answer

Underfill

Answer

All of the above

Question 2

Key points to remember are:

Accepted Answer

Points where an inspection and acceptance are required prior to accomplishment for any further fabrication

Answer

Established by the fabrication department

Answer

Established after fabrication is accomplished

Answer

Points where fabrication is put on hold

Question 3

One should measure the preheat temperature.

Accepted Answer

The thickness of the joint but no less than 3 in from the joint along the entire length of the joint

Answer

The thickness of the joint but no less than 3 in from the joint at the beginning of the joint

Answer

1 in from the end of the joint

Answer

At 6 in intervals along the length of the joint

Question 4

Reviewing the drawings and specifications is recommended:

Accepted Answer

All of the above

Answer

During welding

Answer

After welding

Answer

Prior to welding

Question 5

Which discontinuity is thought to be the best served?

Accepted Answer

Crack

Answer

Arc strike

Answer

Slag inclusion

Answer

Porosity

Answer

Incomplete fusion

Question 6

Which of the following discontinuities has a lower visual probability of being detected?

Accepted Answer

Lamellar tear

Answer

Undercut

Answer

Toe crack

Answer

Overlap

Answer

None of the above

Question 7

Of these welding techniques, which one can lead to underbead cracks?

Accepted Answer

All of the above.

Answer

Welding on contaminated steels

Answer

Use of wet electrodes

Answer

Welding over paint

Question 8

When the welding arc is improperly terminated, the resulting weld discontinuity is known as

Accepted Answer

Crater crack

Answer

Overlap

Answer

Undercut

Answer

Incomplete fusion

Answer

All of the above

Question 9

Which of the following procedures is most unlikely to result in the presence of slag in a fully fused joint?

Accepted Answer

PAW

Answer

SMAW

Answer

SAW

Answer

FCAW

Question 10

The discontinuity that arises from the gas being trapped inside the weld cross-section is known as

Accepted Answer

Porosity

Answer

Slag inclusion

Answer

Crack

Answer

Incomplete fusion