Question 59General Subjects - 1st Asst/Chief70% to pass
The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell _______________.
AI Explanation
The correct answer is A) brine density is too low.
The efficiency and output capacity of a low pressure distilling plant will be reduced if the brine density is too low in the last effect shell. This is because the brine density affects the heat transfer rate in the distillation process. If the brine density is too low, it will result in lower heat transfer, reducing the overall efficiency and output capacity of the distilling plant.
The other options are incorrect because:
B) and C) are not related to the brine density, which is the key factor affecting the distilling plant's efficiency.
D) is incorrect because there is no specific requirement for the brine density to exceed 1.5/32nd.
Related Questions
#57 Which of the following statements describes the approximate relation between the feed water entering the unit shown in the illustration and brine being removed? Illustration MO-0111 #58 The thickest deposit of scale in a flash evaporator is most likely to occur in the tubes of the _______________.#60 In a flash evaporator, scale as a result of higher than normal temperatures is most likely to occur in the _______________.#61 Which of the listed problems could produce a high absolute pressure within a flash type evaporator? #62 The quantity and density of brine discharged from the last effect of a flash type evaporator should be kept at a constant value so as to _______________.