____ indicates a filler metal that is supplied for use as either a current carrying electrode or in rod forms.
A) E
B) R
C) ER
D) EC

Question

Quizplus · Accepted Answer

The prefix "ER" is used to indicate a filler metal that is supplied for use as either a current carrying electrode or in rod form. The prefix "E" is used for electrodes only, while "R" is used for bare filler rods. "EC" is not a recognized prefix for filler metals.

____ Indicates a Filler Metal That Is Supplied for Use