Question 100General Subjects - Assistant Engineer
70% to passThe brine level in the second-stage of a flash-type evaporator is determined in part by the feed rate, the rate of evaporation in both stages, and the _______________.
Athroughput of the brine overboard pump
Bsteam flow rate to the air ejectors
Cfloat controlled level of the feed heater
Dcapacity of the distillate pump
AI Explanation
The correct answer is A) throughput of the brine overboard pump. The brine level in the second-stage of a flash-type evaporator is determined by the balance between the feed rate, the rate of evaporation in both stages, and the throughput of the brine overboard pump. The brine overboard pump removes concentrated brine from the system, which helps maintain the desired brine level in the second stage. The other options are not directly related to controlling the brine level in the second-stage evaporator.
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