What should be listed for back gouging in a WPS form?

• A. Can be used with regards to repairs or welds to remove porosity, slag, and tie-ins; back gouging methods usually include grinding and arc gouging.
• B. It is used to enlarge a weld bead.
• C. It is used to apply a decorative finish.
• D. It is a method of heat treating the weld.

Answer: (A)

Back gouging in a WPS defines the repair action of removing material from the weld root area to eliminate defects and allow proper re-welding. The correct wording reflects that it is used for repairs or welds to remove porosity, slag, and tie-ins, and it acknowledges the common methods such as grinding and arc gouging. This aligns with how a WPS documents the scope and accepted techniques for correcting defects to ensure sound welds. Other options describe activities that aren’t about removing material to fix defects (enlarging the weld bead, applying a decorative finish, or heat treating), so they don’t fit the purpose of back gouging.