Basic Process Knowledge (Multiple Choice) 20181121
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Air leaking into the refrigeration system will not happen. A. Increases the likelihood of ice buildup. B. Raises the exhaust pressure and temperature. C. Prolongs the machine’s operating time. D. Causes frequent start-ups and shut-downs of the machine. Hint: Air cannot condense; it hinders heat transfer, increases the pressure in the condenser, and also introduces water vapor.
A. Increases the likelihood of ice buildup B. Raises exhaust pressure and temperature