What does a WPS/PQR document demonstrate about welding parameters?

• A. WPS/PQR prove repeatable, approved parameters for welding processes.
• B. WPS/PQR are optional and rarely used.
• C. WPS/PQR include only material order details.
• D. WPS/PQR detail only welder's skill test results.

Answer: (A)

Welding parameters are standardized and validated through WPS/PQR, showing that the setup for a specific process is approved and will produce repeatable results. A WPS provides the exact parameters to use for a given combination of process, material, thickness, position, and filler, giving a reproducible recipe that any qualified welder can follow. A PQR records the actual tests and results when those parameters are applied, proving the procedure can meet the required performance criteria. Together, they ensure consistency, quality, and code compliance across jobs, rather than just listing material orders or reflecting a welder’s individual tests.