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API API-577 - Welding Inspection and Metallurgy Exam

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Total 110 questions

According to the PQR 8025, does the thickness range qualified concur with the thickness range as stated on the WPS 802?

A.

Yes, but only for thicknesses greater than .280"

B.

No, the material thickness on the PQR should be .375"

C.

Yes, the PQR qualifies the ranges as stated on the WPS

D.

No, the PQR thickness should have been .560"

What is the minimum liquid level that should be maintained above the area that is to be hot tapped on a storage tank or vessel?

A.

1 ft. (300 mm)

B.

2 ft. (600 mm)

C.

3 ft. (900 mm)

D.

4 ft. (1200 mm)

Refer to the following diagram:

Item#4 represents:

A.

bevel face.

B.

bevel angle.

C.

groove angle.

D.

groove face.

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

A.

Under low humidity conditions.

B.

In warm holding ovens.

C.

In sealed plastic containers.

D.

In tightly sealed ovens.

When welding using the shielded metal arc welding (SMAW) process, which of the following best describes the appearance of excessive penetration on a radiograph?

A.

A lighter density in the center of the width of the weld image, either extended along the weld or in isolated circular drops.

B.

An irregular darker density near the center of the width of the weld image along the edge of the root pass image.

C.

An abrupt density change across the width of the weld image with a straight longitudinal darker density line at the center of the width of the weld image along the edge of the density change.

D.

A localized darker density with fuzzy edges in the center of the width of the weld image.

Which of the following is a practical solution that could prevent or reduce lack of fusion in carbon steel during the weld process?

A.

Reduce travel speed

B.

Provide proper heat input

C.

Avoid excessive weaving

D.

Use proper joint design

What is(are) the most appropriate action(s) to prepare an in-service carbon steel piping system that has been in caustic service for welding?

A.

Neutralize and clean the surface within 6 in. (150 mm) of weld bevels

B.

Steam out the piping system and dry

C.

Verify with pH paper that any surface liquid is “basic"

D.

Grind the surfaces near the bevel to remove contaminants

Any electrodes that have become wet:

A.

Should be placed in a warming oven only if they are low-hydrogen.

B.

Should not be used for jobs requiring low-hydrogen electrodes.

C.

Should be used at a higher amperage than recommended by the manufacturer.

D.

Should be discarded.

One limitation of a shielded metal arc welding (SMAW) process is that:

A.

Deposition rates are lower than GMAW.

B.

The process cannot be used in areas of limited access.

C.

It has low tolerance for contaminants.

D.

The process is sensitive to wind and draft.

The carbon equivalent formula indicates:

A.

Whether postweld heat treatment (PWHT) will be needed.

B.

Whether preheat will be needed.

C.

The theoretical carbon content of a steel.

D.

The weldability of a steel, based on carbon content.