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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Cylinder
Rotary
Drun
Freeze

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

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

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Mass Transfer
Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.

Decreases
Exponentially increases
Does not affect
Increases

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Mass Transfer
Flooding results in

High gas velocity
Low tray efficiency
High tray efficiency
Good contact between the fluids

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Mass Transfer
In McCabe-Thiele method, at infinite reflux ratio

Both A & B
The overhead product is minimum
Both the operating lines coincide with diagonal
Neither A nor B

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Mass Transfer
Separation of __________ employs gaseous diffusion process.

N₂ and O₂ from air
SO₂ and air
Isotopes of helium
Isotopes of uranium

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