Question

The gases used in different types of welding would include: oxygen and hydrogen oxygen, hydrogen, acetylene and nitrogen oxygen, acetylene and argon oxygen and acetylene

Answer 1

The most widely used gases for welding purpose are acetylene and oxygen.

The correct option is (D).

Explanation:

• There are different types of gases that are used for welding purpose.
• The gases which are mostly used in cutting, molding and welding processes include.

• Some shielding gases are also used in welding process such as carbon dioxide (CO2), helium(He) and Argon (Ar) etc.

• Other types of gases that are used include fuel gases such as propane, butane, acetylene etc.

• oxygen gas is mixed with some fuel gases and small concentration of oxygen is also found in some shielding gas mixtures.

The most widely used gases for welding purpose are acetylene and oxygen.

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