Question 100Steam Plants - Assistant Engineer

The correct answer is B) DC heater. High-pressure steam drains are normally discharged to the DC (deaerating) heater. The DC heater is designed to receive high-pressure steam drains and condensate returns, where the steam is used to heat and deaerate the feedwater before it is sent to the boiler. This process helps remove dissolved gases, such as oxygen and carbon dioxide, from the feedwater, which can reduce corrosion in the boiler system. The other answer choices are incorrect because: A) the atmospheric drain line is typically used for low-pressure drains, not high-pressure steam drains; C) the reserve feed tank is for storing feedwater, not for discharging high-pressure steam drains; and D) the drain and inspection tank is used for collecting and inspecting various drains, but not specifically for high-pressure steam drains.