Under what conditions would a package air-conditioning system need to be charged?
A. during initial installation
B. during compressor replacement
C. after the suction line cracked
D. both b and c
Answer: D
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Voltmeters should always be attached ____________________ to the circuit part being tested, so that no wires have to be removed or broken.
Fill in the blank(s) with the appropriate word(s).
If Single-Gang Nail-On non-metallic boxes are used with NM cable, which of the following is true?
a. No connection to the box is required. b. A grounding clip connects the box to the cable. c. Electrical tape connects the box to the cable. d. A standard electrician's staple connects the box to the cable.
What design principles should you consider when designing something to be controlled by the hand?
What will be an ideal response?
The span adjustment in the calibration procedure of an instrument is made when the process variable is __________.
A. in its minimum condition B. in its maximum condition C. anywhere within its full range