Which gases/elements are used in gas-welding?

گیس ویلڈنگ میں کون سے گیس/عناصر استعمال ہوتے ہیں؟

Oxygen, Acetylene and Argon

Oxygen, Acetylene and Nitrogen

Air and Acetylenes

None of these

Explanation

Oxy-acetylene welding is the most common gas welding method, using oxygen and acetylene to produce a high-temperature flame.

Argon is sometimes used as a shielding gas in welding processes like TIG (Tungsten Inert Gas) welding, making the combination valid in broader gas welding contexts.