In a forward feed multiple effect, the pressure build up will be____________________?
Correct answer: B. Least at the outlet of the last effect
- A. Least at the inlet of the first effect
- B. Least at the outlet of the last effect
- C. Highest at the inlet of the last effect
- D. Highest at the outlet of the last effect
Explanation
In forward-feed operation, the feed and vapor move from the first effect toward the last, while pressure is progressively reduced to promote boiling. Consequently, the lowest pressure occurs at the outlet of the last effect.
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