Final answer:
The CSA W47.1 welding procedure system consists of four components: the WPS, PQR, WIR, and WPQ.
Step-by-step explanation:
The subject of this question is Engineering. The CSA W47.1 welding procedure system consists of four components: the Welding Procedure Specification (WPS), Procedure Qualification Record (PQR), Welding Inspection Report (WIR), and Welder Performance Qualification (WPQ). The Procedure Qualification Record (PQR) is a document that establishes the variables and procedures used during the welding process, while the Welder Performance Qualification (WPQ) certifies the skills and performance of the welder.