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Process Equipment and Plant Design
The function of manholes provided in the shell of a distillation column is to
keep a check on the liquid gradient over the plate by direct visual observation.
give access to the individual trays for cleaning, maintenance and installation.
guard against foaming & entrainment by dumping antifoaming agent through it.
all (a), (b) and (c).
Correct Answer:
give access to the individual trays for cleaning, maintenance and installation.
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