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Mass Transfer

Mass Transfer
Milk is dried usually in a __________ dryer.

Spray
Tray
Freeze
Rotary

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NSc = NLe
NSc = NPr = NLe
NPr = NLe
NSc = 1

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Mass Transfer
Which of the following is the most commonly used leaching solvent in vegetable oil industry?

Hexane
Furfurol
Liquid SO₂
Phenol

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Mass Transfer
Air at a particular humidity is heated in a furnace. The new dew point

Increases
Depends on the extent of heating
Decreases
Remain unchanged

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Mass Transfer
The most efficient cooling tower out of the following is

Atmospheric
Forced draft
Natural draft
Induced draft

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Mass Transfer
For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of H₂/ky.Cz is around

1
0.6
0.72
0.24

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