Mass Transfer Mechanism of moisture removal in case of freeze drying of food stuff is by Adsorption Dehydration Evaporation Sublimation Adsorption Dehydration Evaporation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. Wet bulb Dew point Dry bulb None of these Wet bulb Dew point Dry bulb None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Deairation (removal of O₂) of water is done by Absorption Adsorption Rectification Ion-exchange Absorption Adsorption Rectification Ion-exchange ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) More number of trays are required but the residue composition remains unchanged Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required More number of trays are required but the residue composition remains unchanged Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Ammonia present in the coke oven gas is removed by washing with Caustic solution Ethanolamine Dilute HCl Dilute ammoniacal liquor Caustic solution Ethanolamine Dilute HCl Dilute ammoniacal liquor ANSWER DOWNLOAD EXAMIANS APP
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. Molal Percentage None of these Relative Molal Percentage None of these Relative ANSWER DOWNLOAD EXAMIANS APP
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