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Mass Transfer

Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

K₂CO₃
Ethanolamine
Vacuum gas oil
HCl

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

30-40
70-80
44119
90-100

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

Sherwood
Peclet
Schmidt
Stanton

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Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Relative
Percentage
None of these
Molal

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Mass Transfer
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.

Dew point
Adiabatic saturation
Dry-bulb
Wet-bulb

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Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Conveyor
Tunnel
Festoon
Heated cylinder

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