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Mass Transfer

Mass Transfer
For continuous drying of grannular or crystalline material, the dryer used is the __________ dryer.

None of these
Tray
Rotary
Tunnel

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Mass Transfer
The value of NA/(NA + NB), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

2
∞
0.5
1

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

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

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Mass Transfer
Which is the controlling factor for a drum drier?

Diffusion
Neither A nor B
Heat transfer
Both A & B

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Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

All of these
Evaporation
Blowdown and leakage
Drift

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Mass Transfer
_______ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower.

Peclet
Sherwood
Stanton
Lewis

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