Which department or document is the most appropriate source for welding procedure information on tubes?

• A. Safety Manual
• B. Engineering Drawings
• C. Operations
• D. QA/QC

Answer: (D)

The main idea here is who is responsible for maintaining and controlling formal welding procedures. QA/QC is the proper source because this department oversees the quality system and document control, including welding procedure specifications (WPS), procedure qualification records (PQR), and the associated records that prove a weld meets code and project requirements. They ensure these procedures are approved, current, and traceable, which is essential for consistent tube welding across jobs.

The other options aren’t primarily responsible for formal welding procedure information: a Safety Manual covers safety rules, engineering drawings show geometry and dimensions, and Operations handles day-to-day production steps. None of these provide the controlled, codified welding procedures and qualification documentation that QA/QC maintains.