Question

which one of the following is considered a welding consumable? a welding helmet b shielding gas c electrode holder d grounding clamp

Explanation:

Welding consumables are materials that are consumed during the welding process. A welding helmet (A) is safety equipment, not consumed. An electrode holder (C) and grounding clamp (D) are tools/equipment, not consumed. Shielding gas (B) is used and consumed in processes like gas metal arc welding to protect the weld pool, so it's a welding consumable.

Answer:

B. shielding gas