compared to arc welding, which of the following statements are true about gas welding?

Compared to arc welding, gas welding is slower, produces lower temperatures, and is generally used for thinner or softer metals, but it does not require electricity and equipment is simpler and more portable overall.

Key true statements about gas welding (vs arc welding)

• It uses a gas flame (fuel gas + oxygen) as the heat source instead of an electric arc.

• It usually generates lower maximum temperatures than arc welding (around 3 500 °C vs arc temperatures that can exceed 6 000 °C).

• It is typically slower than arc welding because of lower heat input and more manual flame control.

• It is more suitable for thin sections and softer metals (like sheet metal, copper, brass, aluminium) rather than thick structural sections.

• The equipment is simpler (torch and gas cylinders) and does not require an electrical power source, which makes it easier to use where power is not available.

• Welds are generally not as strong or deep‑penetrating as those from many arc welding processes on thicker structural materials.

Typical “exam-style” correct choices

In many objective questions framed like “Compared to arc welding, which of the following are true about gas welding?”, the correct options tend to be statements such as:

1. “Gas welding is slower than arc welding.”

2. “Gas welding produces lower temperatures than arc welding.”

3. “Gas welding is more suitable for thin sections/sheet metal.”

4. “Gas welding equipment is simpler and does not require electricity.”

If you share the exact multiple‑choice options you have, I can map precisely which two or more are correct. Information gathered from public forums or data available on the internet and portrayed here.