AWS Certified Welding Inspector — FundamentalsInspector Duties and ResponsibilitiesEasy
A CWI is reviewing a Welding Procedure Specification (WPS) for a new project. The WPS includes base metal, filler metal, and shielding gas specifications, along with essential variables for the welding process. What is the primary purpose of a WPS?
- ATo provide a general guideline for welders to follow based on their experience.
- BTo qualify the welding operator for specific welding tasks and positions.
- CTo serve as a legal contract between the client and the fabrication company.
- DTo ensure consistent and repeatable weld quality by providing detailed instructions for welding.
Show answer & explanationAnswer & explanation
Correct answer: D. To ensure consistent and repeatable weld quality by providing detailed instructions for welding.
The primary purpose of a WPS is to provide specific, detailed instructions for performing a weld. This ensures that the weld is produced consistently, efficiently, and to the required quality standards, making the process repeatable and predictable.
Why the other options are wrong
- A. A WPS provides specific, not general, instructions and is not based on individual welder experience but on qualified procedures.
- B. A WPS qualifies a *procedure*, not a welder. Welders are qualified to a WPS, but the WPS itself is not the qualification document for the welder.
- C. While a WPS is a critical technical document for a project, its primary function is not as a legal contract, but as a technical process specification.
Welding Procedure Specification (WPS)
A Welding Procedure Specification (WPS) is a formal written document describing welding procedures, providing direction for welders to make sound and quality production welds as per code requirements.
- Written instruction for welding.
- Ensures consistent weld quality.
- Specifies essential, non-essential, and supplementary essential variables.
- Must be qualified through PQR (Procedure Qualification Record).
Memory trick: WPS: 'W'hen 'P'rocedures are 'S'ound, 'S'uccess is 'S'ure.