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Mass Transfer

Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

70-80
90-100
44119
30-40

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Mass Transfer
Large scale drying of sugar is done in a __________ dryer.

Tray
Spouted bed
Rotary
Truck

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Mass Transfer
Rose oil is extracted from rose leaves using __________ distillation.

High pressure
Steam
Extractive
Low pressure

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Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

More than
Less than
None of these
Equal to

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Mass Transfer
In extractive distillation, solvent is

Added to alter the relative volatility of the mixture
Of high volatility
Present in overhead stream
Of high viscosity to give high tray efficiency

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Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Remain unaffected
Decrease or increase ; depends on the type of liquid
Decrease
Increase

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