CWI Codebook Navigation and Application Questions and Answers

Question 1

A welder successfully completes a performance qualification test on a 1-inch thick plate groove weld in the 3G (vertical-up) position according to AWS D1.1.
For which of the following weld types and positions is this welder now also qualified?

Accepted Answer

Fillet welds in the 1F, 2F, and 3F positions.

Answer

Groove welds in the 4G (overhead) position.

Answer

Both groove and fillet welds in all positions.

Answer

Only groove welds in the 3G position.

Question 2

An inspector needs to verify the essential variables for a welder's performance qualification (WPQ). In which major part and article of the ASME Boiler and Pressure Vessel Code, Section IX, would this information be primarily located?

Accepted Answer

Part QW, Article III, Welding Performance Qualifications.

Answer

Part QG, General Requirements.

Answer

Part QB, Brazing.

Answer

Part QW, Article I, General Requirements for Welding.

Question 3

A welder performs a single qualification test for butt welds on a 6-inch nominal diameter pipe (OD = 6.625 inches) in the 5G position, in accordance with API 1104. Based on this test, what is the range of outside diameters the welder is qualified to weld in production?

Accepted Answer

All pipe with an outside diameter greater than or equal to 2.375 inches.

Answer

Only pipe with an outside diameter of 6.625 inches.

Answer

All pipe with an outside diameter less than or equal to 12.750 inches.

Answer

All pipe diameters without restriction.

Question 4

An inspector is visually examining a groove weld on a 1.5-inch thick non-tubular steel plate for a statically loaded structure, governed by AWS D1.1. Which of the following amounts of undercut would be acceptable?

Accepted Answer

1/16 inch deep for a continuous length of 4 inches.

Answer

3/32 inch deep for any length.

Answer

1/32 inch deep, but only if the accumulated length does not exceed 2 inches in any 12 inches.

Answer

Any amount of undercut is a defect and must be repaired.

Question 5

A fabricator has a Procedure Qualification Record (PQR) that was successfully qualified using the Shielded Metal Arc Welding (SMAW) process. The welding engineer now wishes to write a Welding Procedure Specification (WPS) for a production job using the Gas Metal Arc Welding (GMAW) process. According to ASME Section IX, which of the following is true?

Accepted Answer

A change from SMAW to GMAW is considered an essential variable change requiring a new PQR.

Answer

The SMAW PQR can support the GMAW WPS as long as the base material and thickness are the same.

Answer

The SMAW PQR can support the GMAW WPS if a new welder performance qualification is completed with the GMAW process.

Answer

A new PQR is only required if the GMAW process uses a different P-Number base material.

Question 6

For a new butt weld procedure qualification on a 10-inch diameter, standard wall (0.365-inch) pipe, which of the following sets of destructive test specimens is required at a minimum by API 1104?

Accepted Answer

Two tensile tests, two nick-break tests, two root bend tests, and two face bend tests.

Answer

Two tensile tests, two side bend tests, and one macro etch.

Answer

Four side bend tests and one impact test specimen set.

Answer

One tensile test, one nick-break test, one root bend test, and one face bend test.

A welder successfully completes a performance qualification test on a 1-inch thick plate groove weld in the 3G (vertical-up) position according to AWS D1.1.For which of the following weld types and positions is this welder now also qualified?

A welder successfully completes a performance qualification test on a 1-inch thick plate groove weld in the 3G (vertical-up) position according to AWS D1.1.
For which of the following weld types and positions is this welder now also qualified?