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Pick out the wrong statement. | |
A. | If sufficient residence time (around 8 seconds) is not proivided to the downcoming liquid in the downcomer, it may entrain some vapour. [Wrong Answer] |
B. | The liquid head in the downcomer should not be greater than one half the plate spacing to avoid flooding. [Wrong Answer] |
C. | The dischare end of the downcomer must project far enough into the tray liquid so that no gas bubbles can enter the open end and by pass the bubble caps. [Wrong Answer] |
D. | none of these. [Correct Answer] |