Question

Which of the following is NOT a arc welding equipment?

• A. Earthing clamp
• B. Cable lug
• C. Hand shield
• D. Blow pipe

Hint:

Think of the energy source. Arc welding uses electricity, so it needs clamps, cables, and shields. Gas welding uses a flame, which is produced by a Blow pipe.

Answer 1

The Correct Option is D

Arc welding is a fusion welding process that uses an electric arc to create heat to melt and join metals. It requires a specific set of electrical and safety components to function correctly. 1. Standard Arc Welding Equipment:

• Earthing Clamp: This is essential for completing the electrical circuit. It connects the ground cable from the welding machine to the workpiece.

• Cable Lug: These are metal connectors used to securely attach the welding cables to the terminals of the welding machine or to the electrode holder/earth clamp.

• Hand Shield: A piece of safety equipment (similar to a welding helmet) with a dark filter lens that protects the welder's eyes and face from harmful UV/IR radiation and molten sparks.

2. Identifying the Blow Pipe: A

Blow pipe (or torch) is the primary tool used in

Gas Welding (like oxy-acetylene welding) and gas cutting.

• It is designed to mix oxygen and a fuel gas (like acetylene) and provide a controlled flame at the tip.

• It has no role in the electric circuit-based process of arc welding.

3. Conclusion: Because the blow pipe is a gas-operated tool rather than an electrical one, it is classified as gas welding equipment and is NOT used in arc welding.