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Mass Transfer

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

Fluidised bed
Spouted bed
Vacuum rotary
Tray

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Mass Transfer
At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.

Is lower than
Is greater than
Is same as
Cannot be predicted as data are insufficient

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Mass Transfer
Desirable value of absorption factor in an absorber is

< 1
0.5
1
> 1

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Mass Transfer
Degree of freedom for leaching and solvent extraction process is

3
2
1

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Mass Transfer
Raschig ring made of procelain cannot be used for treating concentrated

Hydrochloric acid
Alkalis
Sulphuric acid
Nitric acid

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Mass Transfer
The temperature of water cooled in cooling tower is always __________ temperature of entering air.

More than the wet bulb
Equal to the wet bulb
Equal to the dry bulb
Less than the wet bulb

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