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Engine : Motor Plants and Auxiliary Boilers - 19/947
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Ethylene glycol, when used as a coolant in a closed cooling system for a diesel engine, is more advantageous than untreated raw water because it __________.
A) has a higher freezing point and a lower boiling point
B) has a lower freezing point and higher boiling point
C) provides a constant pH below 7
D) provides better vapor-phase cooling
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