In a typical ASME welder qualification test using an open root, if F3 electrodes are used all the way out, the welder qualifies on _____.
a. F3 electrodes only for both plate and pipe
b. F4 electrodes for both plate and pipe
c. F3 electrodes for plate only
d. all electrodes for both plate and pipe
Ans: a. F3 electrodes only for both plate and pipe
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