Q. Which of the following can be calculated theoretically using steam table and Dalton's law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known ?

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Q. Which of the following parameters remains constant during chemical dehumidifica-tion?

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Q. Drying of a solid involves __________ transfer.

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Q. Mechanism of moisture removal in case of freeze drying of food stuff is by

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Q. The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

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Q. Which is not concerned directly with mass transfer ?

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Q. In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

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Q. Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes ?

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Q. The temperature of water cooled in cooling tower is always __________ temperature of entering air.

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Q. Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C?

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Q. Mass transfer co-efficient is directly proportional to Dᴀʙ according to the __________ theory.

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Q. Ammonia present in the coke oven gas is removed by washing with

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Q. With increase in temperature, the leaching rate increases due to

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Q. Which of the following processes is not an example of adsorption applied to gaseous separations ?

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Q. The critical moisture content in case of drying indicates the __________ rate period.

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Q. Pick out the wrong statement

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Q. Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is

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Q. 'ADDUCTS' and 'CLATHRATES' are used in case of

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Q. Adsorption is an unit operation which generally involves __________ systems.

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Q. In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

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