Process Equipment and Plant Design
An adequate clearance between the tray and the shell wall of a distillation column is provided to

None of these
Drain the liquid from the tray when the unit is not in operation
Allow for thermal expansion and facilitate installation
Avoid back-trapping

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Practical limit reached, due to low heat transfer rate because of inadequate temperature difference
Both A & B
Neither A nor B
Economic limit reached, when the plant cost exceeds the saving of steam

ANSWER DOWNLOAD EXAMIANS APP