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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.

90-100
44119
70-80
30-40

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Mass Transfer
Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre.

Thermal conductivity
Strength
None of the listed here
Electrical resistance

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Mass Transfer
The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the

None of these
Heat of wetting
Integral heat of adsorption
Differential heat of adsorption

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Mass Transfer
In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be

10 metres above ground
2 metres above the ground
At ground level
5 metres above ground

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Mass Transfer
Molecular seives are porous

Silica
Alumina
None of these
Synthetic zeolites crystals/metal alumino-silicates

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Mass Transfer
______ is the separation technique used for desalination of sea water.

Thermal diffusion
Absorption
Reverse osmosis
Adsorption

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