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WPS and PQR Qualification Flashcards

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  1. Under ASME Section IX, if a WPS lists SMAW in the flat position and a welder qualifies using SMAW in the vertical position, which production welding positions are the welder qualified for?

    Answer: Flat, horizontal, and vertical positions

    Per ASME Section IX QW-461, qualification in the vertical (3G) position qualifies the welder for flat, horizontal, and vertical positions.

  2. A WPS written for SMAW using E7018 electrodes. If the manufacturer changes and the new E7018 electrode has a different coating formulation, does the WPS require requalification?

    Answer: No, because the AWS classification number is unchanged

    Under ASME Section IX, the controlling factor is the F-Number and AWS classification, not the manufacturer; the same classification from a different manufacturer does not require requalification.

  3. Under ASME Section IX, which of the following changes to a GTAW WPS constitutes an essential variable requiring requalification?

    Answer: Changing from DCEN to DCEP

    A change in current type or polarity (e.g., DCEN to DCEP) is an essential variable for GTAW under ASME Section IX QW-409.

  4. A PQR qualifies a WPS for base metal 0.25 inches thick. What is the MINIMUM production base metal thickness the WPS covers under ASME Section IX QW-451?

    Answer: 0.0625 inch

    For a PQR test coupon of 0.25 inch, the minimum qualified production thickness is 1/16 inch (the absolute minimum), as the lower limit is T/2 but not less than 1/16 inch.

  5. Under AWS D1.1, a prequalified WPS requires which of the following for the inspector to accept the procedure?

    Answer: Documentation that all prequalified joint, process, and material requirements are met

    A prequalified WPS under AWS D1.1 requires written documentation demonstrating compliance with all prequalified requirements; no test coupon PQR is needed.

  6. Which organization's authorized representative must certify the accuracy of a PQR under ASME Section IX?

    Answer: The manufacturer or contractor who performed the qualification

    Under ASME Section IX QW-103.1, the manufacturer or contractor must certify the PQR and is responsible for its accuracy.

  7. Under ASME Section IX, which variable governs when a change in base metal requires a new procedure qualification for austenitic stainless steels?

    Answer: A change in P-Number

    A change in P-Number (e.g., from P-8 to P-8X or another group) is an essential variable requiring requalification, not the UNS number alone.