Weep holes provided in the plates of a distillation column ____________________?
Correct answer: F. All A., B. and C.
- A. Facilitate draining out liquid from a tray when the unit is not in operation
- B. Are normally located near the overflow weir so that any delivery of liquid during operation
- C. follows approximately the same path as the overflow fluid
- D. Must be large enough (usually 1/4″ to 5/8″ dia) to prevent plugging but should not deliver
- E. excessive amount of fluid during operation
- F. All A., B. and C.
Explanation
Weep holes drain liquid from trays when the column is shut down and are placed and sized to avoid undesirable liquid bypass during operation. Thus the listed functions are intended to be combined under “All A, B and C.”
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