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Mass Transfer

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

Conveyor
Festoon
Heated cylinder
Tunnel

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Mass Transfer
Which of the following is used for the concentration of rubber latex?

Agitated film evaporator
Short tube evaporator
Long tube vertical evaporator
Calendria

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Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

Increases in summer
None of these
Increases in winter
Decreases in winter

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Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

> 1
≤ 1
< 1
1

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Mass Transfer
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

None of these
Lewis
Sherwood
Grashoff

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Mass Transfer
During the constant rate period of drying of a solid,

Increasing the air temperature decreases the drying rate
None of these
Increased air humidity decreases the rate of drying
Surface evaporation of unbound moisture occurs

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