Question 101General Subjects - Assistant Engineer70% to pass
In a two stage flash distilling plant, which of the pumps listed is vented to the shell of the second stage in order to remove vapor from the pump suction?
AI Explanation
The correct answer is B) Distillate pump.
In a two-stage flash distilling plant, the distillate pump is vented to the shell of the second stage in order to remove vapor from the pump suction. This is done to prevent cavitation and ensure proper operation of the distillate pump. The other pumps listed, such as the feed water heater drain pump, air ejector condenser drain pump, and condenser circulating water pump, are not vented to the second stage shell and therefore do not serve this purpose.
Related Questions
#99 In the unit illustrated, the feed water temperature is required to be increased to 165°F or greater and must exist at this temperature when leaving _______________. Illustration GS-0053 #100 The 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 _______________.#102 In a jacket water heated submerged tube evaporator, what is the primary factor that determines the rate of scale build-up on the submerged tube bundle? #103 If valve "D" is opened during the normal operation of the distiller shown in the illustration, which of the events listed will occur? Illustration MO-0111 #104 What would happen if valve "25" shown in the illustration, vibrated open with the unit in operation? Illustration MO-0111