The function of device "O" shown in the illustration is to __________. MO-0110
Official USCG Answer & Rule Citation
Correct Answer: Option D — control the amount of feed water entering the evaporator
The feed water control valve regulates the flow of incoming seawater into the evaporator. Maintaining the correct feed rate is essential to ensure the proper brine density and water level within the shell, preventing carryover of impurities into the distillate and ensuring stable plant operation.
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