Question

identify the piece marked b. this is one of the four major components of a gmaw system.

wire feeding system
welding power source
shielding gas system
gmaw gun

Explanation:

Analyze the diagram labels

Using the GMAW Equipment knowledge point, we identify the labeled components in the Gas Metal Arc Welding (GMAW) system diagram:

• A represents the welding power source.
• B represents the shielding gas cylinder/system.
• C represents the wire feeder.
• D represents the GMAW gun (welding torch).

Identify component B

Using the Shielding Gas Function knowledge point, component B is a high-pressure cylinder equipped with a regulator and flowmeter, which supplies the protective gas to prevent atmospheric contamination of the weld pool. This corresponds to the Shielding gas system.

Answer:

• Wire feeding system
• Welding power source
• Shielding gas system (Correct answer)
• GMAW gun