Process Equipment and Plant Design
Bubble cap plate column is

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

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

There is no central downtake
Downtake is formed by the annular space between the bundle and the shell
The tube bundle is suspended on bracket
It is used for high viscosity liquor having large rate of scaling

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