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

An E7018 electrode is classified as which kind of SMAW filler, and where is it typically used on carbon-steel pipe?

A cellulosic, deep-penetration root electrode used only for the open root A low-hydrogen electrode used for fill and cap passes A stainless electrode used without purge on carbon steel A cast-iron nickel electrode used for boiler-tube overlay

Correct Answer:

A low-hydrogen electrode used for fill and cap passes

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