What do WPS and PQR stand for, and what is their purpose in welding?

• A. WPS stands for Workpiece Preparation Standard and PQR stands for Process Quality Report.
• B. WPS and PQR stand for Welding Procedure Specification and Procedure Qualification Record; together they qualify and document repeatable welding parameters.
• C. WPS and PQR refer to Welding Protective Standards and Process Quality Review to ensure safety and compliance.
• D. WPS stands for Weld Pass Schedule and PQR stands for Procedure Quality Record.

Answer: (D)

In welding, WPS and PQR are two documents that ensure consistency and traceability of a welding procedure. A Welding Procedure Specification defines exactly how to perform a weld—the process, filler material, joint configuration, position, materials, thickness, and the specific welding parameters that must be used. This provides a repeatable recipe so every welder follows the same steps for the same joint. A Procedure Qualification Record is the proof that this procedure can produce a sound weld; it documents the test welds, the conditions under which they were made, and the results, showing that the procedure meets the required standards. Together, they qualify the welding procedure and document the parameters so welds can be reproduced reliably and inspected against a known, tested specification. The standard terms are Welding Procedure Specification and Procedure Qualification Record; other phrases like Weld Pass Schedule or Workpiece Preparation Standard aren’t the correct terms for these concepts.