Process Equipment and Plant Design
Bubble cap plate column is

A finite stage contactor
A differential stage contactor
A continuous contactor
Used only for distillation, not for absorption

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
Weep holes provided in the plates of a distillation column

Must be large enough (usually 1/4" to 5/8" dia) to prevent plugging but should not deliver excessive amount of fluid during operation
Are normally located near the overflow weir so that any delivery of liquid during operation follows approximately the same path as the overflow fluid
All of these
Facilitate draining out liquid from a tray when the unit is not in operation

ANSWER DOWNLOAD EXAMIANS APP

Process Equipment and Plant Design
In a shell and tube heat exchanger, the clearance of the tube is generally

Equal to the tube diameter
More than the tube diameter
More in case of triangular pitch as compared to the square pitch tube layout
Not less than one-fourth of the tube diameter or 3/16"

ANSWER DOWNLOAD EXAMIANS APP