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Mass Transfer

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

Truck
Tray
Rotary
Spouted bed

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Mass Transfer
If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

None of these
< 100
100
> 100

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Mass Transfer
Which of the following unit operations makes use of Thiele-Geddes equation?

Multicomponent absorption with chemical reaction
Solid-liquid extraction
Multicomponent distillation
Liquid-liquid extraction

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Mass Transfer
In most of the vacuum crystalliser, vacuum is generally produced by means of a

Steam jet ejector with a barometric condenser
Suction pump
Compressed air jet
None of these

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Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

Increases in winter
Decreases in winter
Increases in summer
None of these

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Mass Transfer
When the mixture to be distilled has a very high boiling point and the product material is heat sensitive, the separation technique to be used is __________ distillation.

Continuous
Steam
Azerotropic
None of these

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