SC Pressure And Process Piping Practice Questions - South Carolina Pressure And Process Piping Contractor Examination Exam

The WPS is the shop packing list; the PQR is the trucking bill of lading The WPS is the written welding procedure the welder must follow; the PQR is the supporting record of the qualification tests that prove the procedure works The PQR is hung on the pipe as a traveler; the WPS is only used for radiography They are two names for the same welder qualification card