SC Pipelines Practice Questions - South Carolina Pipelines Contractor Examination Exam

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A contractor wants to change a qualified SMAW pipe WPS from E7018 fill to a different F-number filler and to add postweld heat treatment that was not on the PQR. What is required?

Nothing; any filler of the same color may be substituted Requalification of the procedure (a new PQR) because filler F-number and PWHT are essential variables Only a note in the daily diary A new hydrostatic test of the whole pipeline, with no WPS change

Correct Answer:

Requalification of the procedure (a new PQR) because filler F-number and PWHT are essential variables

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