Which cooling methods are used for GTAW torches?

• A. Only air cooled
• B. Only water cooled
• C. No cooling
• D. Water cooled or air cooled

Answer: (D)

GTAW torches need cooling to prevent overheating during welding, and there are two practical cooling methods used: air cooling and water cooling. Air cooling is lighter and simpler, suitable for lower current or shorter welds. Water cooling handles higher currents and longer welds by circulating water through the handle to carry away more heat. Because both methods are used in different situations, the best choice recognizes that either cooling method can be employed depending on the job requirements. The other options imply only one method or no cooling, which isn’t accurate for GTAW torches.