What are the functions of the GTAW torch?

• A. Provides welding power and storage for filler metal
• B. Acts as an electrode holder, conduit for shielding gas and coolant, and conductor for welding current
• C. Slow the arc and heats the base metal from a distance
• D. Act as a flux delivery system

Answer: (B)

In GTAW, the torch’s role is to hold the non‑consumable tungsten electrode, supply shielding gas (and coolant if you’re using a water‑cooled torch) to the arc, and conduct welding current from the power source to the electrode. The shielding gas protects the molten weld pool from the atmosphere, and the coolant (if present) helps keep the torch and electrode from overheating. The welding current flows through the torch to the tungsten electrode, completing the electrical circuit for arc formation. Filler metal, when used, is usually fed separately by the welder, not stored in the torch. For these reasons, this option best matches how a GTAW torch functions: electrode holder, conduit for shielding gas and coolant, and conductor for welding current. The other statements don’t fit: power comes from the power supply, not the torch; the torch doesn’t slow the arc; and TIG welding doesn’t rely on a flux delivery system.