Question

multiple choice
question 2
which tool provides the return path needed to
complete the electrical circuit in arc welding?
a shielding gas system
b grounding clamp
c welding helmet
d welding machine

Explanation:

• Option A: A shielding gas system is used to protect the weld from atmospheric contamination, not to provide a return path for the electrical circuit.
• Option B: A grounding clamp (also called an earth clamp) is connected to the workpiece and provides the return path for the electrical current to complete the circuit in arc welding.
• Option C: A welding helmet is used to protect the welder's eyes and face from the intense light and sparks, not related to the electrical circuit path.
• Option D: The welding machine provides the power source (voltage and current) for the welding process but not the return path for the current to complete the circuit.

Answer:

B. grounding clamp