Where do commercial refrigeration "rack" systems get their name?
A) They use multiple individual condensing units mounted on a large rack outside.
B) They were originally developed by Refrigeration of Ackworth Corporation.
C) RACK stands for Refrigeration Air Conditioning Kontrol.
D) They use multiple compressors mounted in a row on a rack.
D
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Expansionary monetary policy actions are likely to cause farmland values to ________.
Fill in the blank(s) with the appropriate word(s).
One of the rules for residential wiring is to install a 200-ampere, three-wire or larger service for a single-family dwelling.
Answer the following statement true (T) or false (F)
One method of determining harmonic problems on single-phase systems is to make two separate current checks. When this is performed, a ratio of average to true-RMS equal to one indicates _____ harmonic distortion.
A. ?no B. ?moderate C. ?extreme
Fire Wardens should know that in the event of a fire, elevators may be used if there is more than one bank of elevators, and he is informed by whom, that one bank is unaffected by the fire.
A. Informed from the floor below the fire floor B. Informed from the Fire Command Station C. Informed from the chief of the Fire Brigade D. Informed from those in an unaffected area