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Mass Transfer

Mass Transfer
The value of L/mG ratio for economical absorption operation ranges from

2.5 to 3.5
1.25 to 2.0
0.8 to 1.2
0.5 to 0.8

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

Vacuum rotary
Fluidised bed
Spouted bed
Tray

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Mass Transfer
Desulphurisation of petrol is done in a

Plate type extraction column
Bollman extractor
Packed extraction column
Rotating disc extractor

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Mass Transfer
Pick out the system with maximum boiling azeotrope at 1 atm.

Benzene-ethyl alcohol
Acetone chloroform
None of these
Ethyl alcohol-water

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Mass Transfer
Small dia distillation column can be a

Bubble cap
Packed column
Sieve tray
Any of these

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Mass Transfer
Paper industry employs __________ driers.

Fluidised bed
Spray
Cylinder
Rotary

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