The essential elements of a single component system refrigeration system, in order are:
A) Evaporator, compressor, condenser, and metering device.
B) Compressor, evaporator, metering device, and condenser.
C) Metering device, compressor, evaporator, and condenser.
D) Condenser, compressor, metering device, and evaporator.
Question 2
What is the advantage of using multiple compressors on a supermarket rack system?
A) The compressors can operate at a higher compression ratio as a parallel group.
B) Extra compressors provide backup in case one quits working.
C) System capacity can match refrigeration loads which vary over a wide range.
D) Using multiple parallel compressors makes the use of multiple refrigerants possible.
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