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Mass Transfer

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

Spouted bed
Truck
Tray
Rotary

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Mass Transfer
The cooling effect in a cooling tower can be speeded up by

Reducing the barometric pressure
All of the listed here
Reducing the humidity of the air
Increasing the air velocity and area of exposed wet surface

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Mass Transfer
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

Molecular
Simple
Steam
Extractive

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

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

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Mass Transfer
With increase in pressure, the relative volatility for a binary system

Remains same
Either A or B, depends on the system
Decreases
Increases

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Mass Transfer
Leaching of coffee from coffee beans is done by

Lime water
Dilute H₂SO₄ (hot)
Hexane
Hot water

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