Which of the following is true about qualifying the WPS?
A. It must be qualified to verify that the list of variables will provide a sound weld.
B. It is not necessary to keep a record of all parameters used to produce test welds.
C. The PQR is for the benefit of the welder; the inspection agency will not request it.
D. Sample welds are prepared using an established code or specification.
Answer: A
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