Question 87Motor Plants - QMED
70% to passAccording to the illustrated main engine cooling water systems drawing, which labeled sea water-cooled heat exchanger would have the highest sea water inlet temperature? Illustration MO-0111
A3
B4
C5
D6
AI Explanation
The correct answer is A) 3. According to the principles of heat transfer, the heat exchanger that is closest to the sea water inlet (labeled 3) would have the highest sea water inlet temperature. This is because the sea water temperature gradually increases as it flows through the various heat exchangers in the cooling system. The heat exchanger labeled 3 is the first one that the sea water encounters, so it would have the highest inlet temperature compared to the other heat exchangers further downstream. The other options are incorrect because the sea water inlet temperature decreases as it flows through the subsequent heat exchangers, labeled 4, 5, and 6.
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