Question 127Steam Plants - 1st Asst/Chief

70% to pass

Cooling water to the vent condenser in a DC heater is supplied by the _______________.

Asalt water circulator
Bmain and/or auxiliary condensate pump
Cfeed booster pump
Dmain feed pump
AI Explanation

The correct answer is B) main and/or auxiliary condensate pump. In a DC (Direct Current) heater system, the cooling water to the vent condenser is supplied by the main and/or auxiliary condensate pump. The condensate pump circulates the condensed steam from the main condenser back to the boiler, and a portion of this condensate is used to cool the vent condenser. The other options are incorrect because: A) the salt water circulator supplies cooling water to the main condenser, not the vent condenser; C) the feed booster pump supplies water to the boiler, not the vent condenser; and D) the main feed pump also supplies water to the boiler, not the vent condenser.

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