Excluding line losses, how many distinct pressure drops will occur as sea water flows through all the heat exchangers in the cooling system shown in the illustration? Illustration MO-0111

USCG Exam Illustration MO-0111
USCG Examination Diagram: Illustration MO-0111
Official USCG Answer & Rule Citation

Correct Answer: Option C — 5

Tracing the seawater circuit through the distiller's various shell-and-tube heat exchangers reveals five distinct pressure drops caused by fluid friction, flow restriction, and elevation changes across the internal cooling passes.

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