INTERVIEW QUESTIONS
ASME SECTION IX : WELDING
1. What is WPS?
Answer: WPS stands for Welding Procedure Specification. A WPS is a written document that provides direction to the welder or welding operator for making production welds in accordance with code requirement.
(Refer: ASME Sec IX; QW:100.1)
2. What is PQR?
Answer: PQR stands for procedure qualification record. The PQR documents what occurred during welding the test coupon and the results of testing of the coupon.
3. Why a WPS needs qualification?
Answer: The purpose for qualification of a WPS is to determine that the weldment proposed for construction is capable of providing the required properties for its intended application.
Welding Procedure Qualification establishes the properties of the weldment not the skill of the welder or welding operator.
4. Why a performance qualification is done for welder?
Answer: In performance qualification, the basic criteria established for welder qualification is to determine the welders ability to deposit sound weld metal. The purpose of the performance qualification test for the welding operator is to determine the welding operators mechanical ability to operate the welding equipment.
5. Is there any expiry date for WPS/PQR/WPQ/WOPQ?
Answer: NO.
WPS, PQR, WPQ/WOPQ made in accordance with the requirements of the 1962 edition or any later edition of section IX may be used in any construction built to the ASME Boiler and Pressure Vessel Code or the ASME B 31 Code for pressure piping.
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