CWI WPS, PQR, and Welder Qualification 2 — Questions and Answers
Question 1: A Procedure Qualification Record (PQR) documents which of the following?
- The essential variables used during production welding
- The actual variables used and test results from the qualification weld (Correct answer)
- The welder's certification history and training records
- The inspector's acceptance criteria for the weld joint
Correct answer: The actual variables used and test results from the qualification weld
A PQR records the actual welding conditions and variables used during a test weld, along with the mechanical test results that qualified the WPS.
Question 2: Under AWS D1.1, which essential variable change to a WPS requires requalification of the procedure?
- A change in the weld pass sequence
- A change in the base metal P-number (Correct answer)
- A change in the welding position from 1G to 2G
- A reduction in preheat temperature within the allowed range
Correct answer: A change in the base metal P-number
A change in base metal P-number (or group number) is an essential variable that requires requalification of the welding procedure.
Question 3: When qualifying a welding procedure for groove welds using SMAW, what is the minimum required test for mechanical qualification?
- Hardness testing and Charpy impact testing
- Bend tests and tensile tests (Correct answer)
- Radiographic testing and ultrasonic testing
- Fillet weld break test and macro examination
Correct answer: Bend tests and tensile tests
AWS D1.1 requires both bend tests (side, face, or root) and tensile tests to mechanically qualify a groove weld procedure.
Question 4: A welder qualifies on a 3/4-inch thick plate in the 3G position. What is the maximum thickness the welder is qualified to weld in production under AWS D1.1?
- 3/4 inch only
- 3/8 inch to 1-1/2 inches
- Unlimited thickness (Correct answer)
- 1 inch maximum
Correct answer: Unlimited thickness
Under AWS D1.1, a welder who qualifies on plate 3/8 inch or thicker is qualified for unlimited thickness in production.
Question 5: Which document authorizes a welder to perform production welding on a specific project?
- The Welding Procedure Specification (WPS)
- The Procedure Qualification Record (PQR)
- The Welder Qualification Test Record (WQTR) (Correct answer)
- The contract drawings
Correct answer: The Welder Qualification Test Record (WQTR)
The Welder Qualification Test Record (WQTR) documents that a specific welder has demonstrated the skill to weld using a given process and position.
Question 6: What is the primary purpose of a Welding Procedure Specification (WPS)?
- To certify that a welder is skilled for a given process
- To provide direction to the welder for making code-compliant welds (Correct answer)
- To record the test results of a procedure qualification weld
- To list the mechanical properties of the base metal
Correct answer: To provide direction to the welder for making code-compliant welds
A WPS is a written document that provides the required welding variables to guide production welders in making welds that meet code requirements.
Question 7: Under ASME Section IX, supplementary essential variables become essential only when which condition exists?
- The base metal thickness exceeds 1.5 inches
- Impact testing is required by the construction code (Correct answer)
- The welding position is changed from flat to overhead
- The filler metal classification changes
Correct answer: Impact testing is required by the construction code
Under ASME Section IX, supplementary essential variables apply only when notch-toughness (impact) testing is required by the referencing code.
CWI WPS, PQR, and Welder Qualification 2
A Procedure Qualification Record (PQR) documents which of the following?