USCG USCG Motor
Set 11 • Question #87 of 382
Launch Interactive Practice Room Which of the listed effects would mixtures of ethylene glycol and phosphate compounds have on the metal surfaces of the cooling system of a diesel engine?
A
Increases the rate of heat transfer
B
Protects metallic surfaces from corrosion and the coolant from freezing
✓ Correct Answer
C
Retards the flow of cooling water
D
Tends to increase corrosion
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Which of the listed effects would mixtures of ethylene glycol and phosphate compounds have on the metal surfaces of the cooling system of a diesel engine', the correct operational principle is: 'Protects metallic surfaces from corrosion and the coolant from freezing'.
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