AWS AWS Welder Qualification & Procedure Testing 4 — Questions and Answers
Question 1: Under AWS D1.1, if a welder fails a groove weld qualification test, what is the minimum waiting period before retesting?
- No waiting period; immediate retest is allowed (Correct answer)
- 24 hours before one retest attempt
- One week before any retest
- The welder must complete additional training before retesting
Correct answer: No waiting period; immediate retest is allowed
AWS D1.1 does not mandate a waiting period; the welder may retest immediately, but additional practice or training is advisable.
Question 2: When qualifying a WPS by prequalified status under AWS D1.1, what documentation is still required?
- A completed WPS document listing all essential variables (Correct answer)
- A PQR with actual test results
- CWI certification on file
- A mill certificate for the base metal only
Correct answer: A completed WPS document listing all essential variables
Prequalified WPSs do not require a PQR, but a written WPS document covering all essential variables must still be prepared and maintained.
Question 3: A welder qualified on 3/8-inch plate in the 3G position is also qualified to weld on which of the following?
- Flat and horizontal groove welds on plate of unlimited thickness (Correct answer)
- All positions on pipe
- Vertical groove welds only on plate up to 3/8 inch
- Overhead groove welds on plate only
Correct answer: Flat and horizontal groove welds on plate of unlimited thickness
AWS D1.1 qualification in 3G (vertical) covers flat and horizontal groove welds on plate with no upper thickness limit beyond 2T.
Question 4: Which destructive test is used to evaluate root and face bend ductility in a groove weld procedure qualification test?
- Guided bend test (Correct answer)
- Nick-break test
- Charpy V-notch test
- Macro-etch test
Correct answer: Guided bend test
The guided bend test bends weld specimens over a specified die radius to reveal lack of fusion, cracks, or porosity in root and face zones.
Question 5: According to AWS B2.1, a change from SMAW to GMAW on a previously qualified WPS is considered a:
- Essential variable change requiring requalification (Correct answer)
- Supplementary essential variable
- Non-essential variable
- Administrative change only
Correct answer: Essential variable change requiring requalification
Changing the welding process is an essential variable under AWS B2.1 and requires requalification of the WPS.
Question 6: What is the primary purpose of a Procedure Qualification Record (PQR)?
- To document actual variables used and test results during procedure qualification (Correct answer)
- To list all welders approved to use the WPS
- To specify the production welding parameters to be followed
- To record heat treatment cycles for base metal
Correct answer: To document actual variables used and test results during procedure qualification
A PQR documents the actual conditions used during the test weld and the mechanical test results that support the written WPS.
Question 7: Under AWS D1.1, the maximum allowable convexity for a fillet weld with a 1/2-inch leg size is:
- 1/8 inch (Correct answer)
- 3/16 inch
- 1/4 inch
- 1/16 inch
Correct answer: 1/8 inch
AWS D1.1 Table 6.1 limits fillet weld convexity to 1/8 inch for leg sizes of 1/4 inch through 1/2 inch.
AWS AWS Welder Qualification & Procedure Testing 4
Under AWS D1.1, if a welder fails a groove weld qualification test, what is the minimum waiting period before retesting?