Water-cooled GTAW torches generally have how many cables?

• A. Two cables
• B. Three cables
• C. Four cables
• D. Five cables

Answer: (B)

Water-cooled GTAW torches need three separate feeds to operate: welding current, shielding gas, and cooling water. The electrical lead carries the welding current from the power source to the tungsten electrode to create the arc. The shielding gas line delivers the shielding gas around the arc and electrode to protect the weld from contamination. The coolant loop circulates water through the torch to remove heat and prevent overheating. These three essential connections are why three cables (or connections) are standard for a water-cooled TIG torch. Two cables would leave out either shielding gas or cooling, which isn’t sufficient for normal operation; four or five would add extra lines not required for a typical setup.