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Engine_2014 : General Subjects - 3259/3524
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When two refrigerated spaces in a refrigeration system are served by a single compressor and condenser, yet are maintained at different temperatures, what is true concerning an installed back pressure regulating valve?
A) it maintains a higher pressure in the evaporator coil of the colder box
B) it maintains a higher pressure in the evaporator coil of the warmer box
C) it maintains a lower pressure in the evaporator coil of the warmer box
D) it maintains equal pressures in the evaporator coils of both boxes
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