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Mass Transfer

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

Drun
Cylinder
Freeze
Rotary

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Mass Transfer
In liquid extraction, if the selectivity is unity, then

Solvent flow rate should be very low
Amount of solvent required will be minimum
No separation will occur
Separation of the constituents is the most effective

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Mass Transfer
Which of the following employs an accessory known as 'drift eliminator' ?

Rotating disc contactor
Multiple effect evaporator
Rotary dryer
Mechanical draft cooling tower

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Mass Transfer
At a fixed total pressure, humidity depends only on the

Partial pressure of vapour in the mixture
Heat capacity of the vapour
None of these
Density of the vapour

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Mass Transfer
Can the efficiency of a plate in the distillation tower be greater than 100%?

Normally not; but is possible if infinite number of plates are put
Yes ; if the reflux ratio is maximum
Never
Yes

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Mass Transfer
Alcohol is dehydrated using __________ distillation.

Extractive
Steam
Azeotropic
Molecular

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