This symbol in a wiring diagram indicates ________
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A(n) ____________________ allows a current to flow in one direction only.
Fill in the blank(s) with the appropriate word(s).
The number of joists and headers required around openings of various sizes ____.
A. can be calculated B. is constant C. is not shown on framing plans D. is spelled out in building codes
If a trace ____________________ it acts like a resistor that has opened and the circuit will not work or will only partially work.
Fill in the blank(s) with the appropriate word(s).
Technician A says that a power balance test is the best way to isolate the problem cylinder. Technician B says that a compression and cylinder leakage test can help determine the cause of the problem. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician