USCG USCG Motor
Set 7 • Question #298 of 382
Launch Interactive Practice Room Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to_______.
A
reduce electrolytic action on heat exchanger metals
✓ Correct Answer
B
keep heat transfer surfaces shiny and clean
C
prevent rapid accumulation of marine growth
D
provide a protective coating on heat exchanger surfaces
USCG NMC Regulatory Explanation
In USCG Motor Plants (Diesel Engineering), regarding 'Sacrificial zinc anodes are used on the saltwater side of diesel engine heat exchangers to', the correct operational principle is: 'reduce electrolytic action on heat exchanger metals'.
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