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4. Which of the following drive roll designs is used with FCAW electrode wire? A. A-groove. B. U-groove. C. V-groove. D. Knurl-groove.
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3 votes
4. Which of the following drive roll designs is used

with FCAW electrode wire?
A. A-groove.
B. U-groove.
C. V-groove.
D. Knurl-groove.

User Pat Mcb
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5.6k points

1 Answer

3 votes
knurled drive rolls are used with gas and self shielded flux cored and metal cored wires, which are softer due to the flux inside and the tubular design.
User Jason L Perry
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4.9k points
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