Question 74General Subjects - 1st Asst/Chief70% to pass
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

AI Explanation
The correct answer is C) The amount of vapor being formed in the evaporator will decrease.
When valve "D" is opened during normal distiller operation, it allows more feed water to enter the evaporator. This additional feed water will dilute the concentrated brine solution, reducing the temperature difference between the brine and the vapor space. As a result, the amount of vapor being generated in the evaporator will decrease.
The other options are incorrect because: A) opening valve "D" would not overload the jacket water cooler, B) the amount of vapor would decrease, not increase, and D) the output of pump "7" would not increase as a result of opening valve "D".
Related Questions
#72 What would happen if valve "25" shown in the illustration, vibrated open with the unit in operation? Illustration MO-0111 #73 If the wearing rings of device "7" shown in the illustration become worn, how will the evaporation rate in "23" be affected? Illustration MO-0111 #75 Which of the conditions listed would indicate a large condenser tube leak within the distiller shown in the illustration? See Illustration MO-0111 #76 If valve "H" shown in the illustration is opened wide while the distiller is in operation, . Illustration MO-0111 #77 What would be the first indication that a tube leak has occurred in area "23"? Illustration MO-0111