Welding - Processes (SMAW, GTAW, GMAW, FCAW, SAW,)

A: A tempts people because paperwork feels administrative, but the WQTR-to-WPS link controls whether the weld was even allowed to be made. B looks efficient, but hardness before PWHT is meaningless and often fails by design. C is valid later, yet PWHT parameters don’t excuse an unqualified welder. D assumes NDT precedes all checks, but most ITPs gate NDT on confirmed welding compliance first.

A: A aligns with why inspectors care about O₂ ppm at the root; oxides act like built‑in defects. B sounds metallurgical, but hydrogen control is driven by consumables and moisture, not oxygen content. C borrows logic from plasma processes, yet GTAW arc stability isn’t governed by purge composition. D mixes up dilution control with joint geometry, not the purge environment.

A: A survives the unit traps: volts times amps, times 60, divided by speed, then efficiency applied once. B skips efficiency, a common shortcut during shop PQRs. C feels neat but quietly swaps minutes for seconds without noticing. D is what happens when time conversion gets layered during a rushed check.

A: A is dull but defensible; conflicting controls mean you don’t know what process is running. B relies on operator feel, which auditors won’t accept. C actively changes an essential variable mid‑production. D sounds procedural, yet letting work proceed without alignment is exactly what inspectors probe.