Red Seal Welding Practice Exam

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What type of drive roller is best suited for FCAW?

Smooth
Knurled
Serrated
Grooved

The correct answer is: Knurled

A smooth drive roller is not the best option for FCAW welding because it does not provide enough grip on the wire, causing it to slip and potentially create a poor weld. A serrated drive roller may also not be the best option because it can lead to wire deformation, affecting the wire feed and potentially causing problems with the weld. A grooved drive roller is not the best option either as it can cause irregular wear on the wire and affect the wire feed. The best option for FCAW welding is a knurled drive roller, which has teeth that grip the wire and provide a consistent and stable wire feed. This helps to ensure a smooth and successful weld.