Question 134Steam Plants - Assistant Engineer

70% to pass

The DC Heater functions to _______________.

Aensure recirculation in the feed water system
Bchemically treat feed water to remove carbonic gas
Cremove the major amount of non-condensable gases from the main condenser
Dstore, heat, and deaerate feed water
AI Explanation

The correct answer is D) store, heat, and deaerate feed water. The DC (deaerating condenser) heater functions to store, heat, and deaerate the feed water before it enters the boiler. This is an important step in the feed water system to remove non-condensable gases like oxygen and carbon dioxide, which can cause corrosion in the boiler. Deaerating the feed water helps maintain boiler efficiency and integrity. The other answer choices are incorrect because they do not accurately describe the primary purpose of the DC heater. Options A, B, and C describe different components or functions of the feed water system, but are not the main purpose of the DC heater specifically.

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Official Resources
46 CFR Machinery & Electrical 46 CFR Engineering USCG National Maritime Center
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