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Mass Transfer

Mass Transfer
Mass transfer co-efficient varies as DAB0.5, according to the __________ theory.

Surface renewal
Film
None of these
Penetration

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

Stanton
Peclet
Sherwood
Lewis

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Mass Transfer
Design calculation for multiple component distillation is done by

Ponchon-Savarit method
Enthalpy concentration method
Tray to tray calculations
Mccabe-Thiele method

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Mass Transfer
In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation.

Lower than
Either A or B, depends on the mixture composition
Equal to
Higher than

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Mass Transfer
Small dia distillation column can be a

Bubble cap
Any of these
Sieve tray
Packed column

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

Spouted bed
Fluidised bed
Tray
Vacuum rotary

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