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Mass Transfer

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

Festoon
Heated cylinder
Tunnel
Conveyor

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Mass Transfer
If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

None of these
100
< 100
> 100

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Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Total pressure
Temperature
Composition
All of these

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Mass Transfer
In case of constant underflow extraction operation, the __________ at all solute concentration.

Neither A nor B
Ratio of the insoluble to solution is constant
Both A & B
Solids are drained to the same extent

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Mass Transfer
Tower diameter may be decreased by

Use of increased tray spacing
Increasing the liquid flow rate
Increasing the vapour flow rate
Using higher reflux ratio

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Mass Transfer
If the amount of the steam used in steam distillation is increased, the temperature of distillation

Depends on relative volatility
Increases
Remains unchanged
Decreases

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