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Mass Transfer

Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

44119
30-40
70-80
90-100

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Mass Transfer
Deairation (removal of O₂) of water is done by

Rectification
Absorption
Ion-exchange
Adsorption

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Mass Transfer
Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.

Tray
None of these
Rotary
Freeze

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Mass Transfer
Minimum possible diameter of a packed coloumn is decided mainly by the

Flooding
Liquid density
Gas viscosity
Liquid hold up

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Mass Transfer
Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Stanton
Schmidt
Peclet
Sherwood

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Mass Transfer
Large scale usage of flash distillation is practised in

Soap manufacturing
Polymerisation industry
Petroleum refinning
Ammonia synthesis plant

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