SC Structural Framing Practice Questions - South Carolina Structural Framing Contractor Examination Exam

Which current and polarity are normally used with E7018 for structural steel SMAW?

AC only DCEN (straight polarity) only DCEP (reverse polarity), or AC if the electrode is rated for AC DCEN for the root and AC for the fill

Correct Answer:

DCEP (reverse polarity), or AC if the electrode is rated for AC

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