Compared with some other processes, GTAW has what issue with filler metal deposition?

• A. Lower filler metal deposition rates
• B. Higher deposition rates
• C. No filler metal requirements
• D. Always uses same filler metal as base

Answer: (A)

In GTAW, the filler metal is added by hand using a separate filler rod, and the welder must control the feed rate precisely while keeping the arc stable and the weld clean. This manual, highly controlled process naturally limits how quickly filler can be deposited, so the filler deposition rate tends to be lower than in processes that automatically feed filler as the weld progresses. Sometimes the joint is welded without any filler at all, but when filler is used, the rate remains relatively slow due to the careful control required. That’s why the best answer is that GTAW has lower filler metal deposition rates compared with some other processes.