Which statement about GTAW (TIG) welding is true?

• A. It provides higher quality welds but is slower.
• B. It is the fastest welding process.
• C. It uses a consumable electrode.
• D. It does not require shielding gas.

Answer: (A)

GTAW (TIG) welding delivers very high-quality, precise welds because you have fine control of heat input and the arc, and you can weld with or without carefully added filler metal for clean roots and minimal distortion. The electrode in this process is non-consumable tungsten, so it isn’t worn away and used up like a consumable electrode in some other methods; filler metal, when used, is added separately. Shielding gas is essential to protect the weld pool, typically argon (sometimes with helium), which keeps the weld clean and prevents oxidation. Because this method relies on careful control and often slower travel speeds to maintain quality, it is not the fastest welding process. These aspects make the statement about higher quality but slower performance the true one.