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Mass Transfer

Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Tunnel
Heated cylinder
Conveyor
Festoon

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Rotating disc contactor
Rotary dryer
Mechanical draft cooling tower
Multiple effect evaporator

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Mass Transfer
COâ‚‚ can be absorbed by

Hot cupric oxide
Alumina
Heated charcoal
Cold Ca(OH)â‚‚

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Mass Transfer
Very tall packed towers are divided into series of beds to

Avoid flooding
Avoid channelling
Reduce liquid hold-up
Reduce the overall pressure drop

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Mass Transfer
Which of the following binary systems is an example of a maximum boiling azeotrope?

Water-hydrochloric acid
None of the listed here
Water-ethyl alcohol
Acetone-carbon disulphide

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Mass Transfer
Minimum reflux ratio in a distillation column results in

Minimum number of trays
Minimum reboiler size
Maximum condenser size
Optimum number of trays

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