SC Boiler Installation Practice Questions - South Carolina Boiler Installation Contractor Examination Exam

A common SMAW procedure for an open-root carbon-steel steam-pipe butt joint uses which electrode sequence?

E7018 root and E6010 fill E6010 or E6011 open root, then E7018 fill and cap E308 stainless for every pass without purge Bare wire with no flux on the root only

Correct Answer:

E6010 or E6011 open root, then E7018 fill and cap

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