In the standard welding system, the ____ connects the reference line to the joint or area to be welded.

A. tail
B. arrow
C. header
D. trailer


Answer: B

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When doing a water system balance, how should the final water flow rate at all units be set?

a. 100 percent of design flow b. Within +/-10 percent of design flow c. 105 percent of design flow d. Above 85 percent of design flow

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