An adequate clearance between the tray and the shell wall of a distill – McqOptions

MCQOPTIONS

1.	An adequate clearance between the tray and the shell wall of a distillation column is provided to_____________________?
A.	Drain the liquid from the tray when the unit is not in operation
B.	Allow for thermal expansion and facilitate installation
C.	Avoid back-trapping
D.	None of these
Answer» C. Avoid back-trapping

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