Mass Transfer Overall efficiency of the distillation column is The ratio of number of ideal plates to actual plates The ratio of number of actual plates to ideal plates Same as the Murphree efficiency Always more than the point efficiency The ratio of number of ideal plates to actual plates The ratio of number of actual plates to ideal plates Same as the Murphree efficiency Always more than the point efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of unsaturated air Both of the options given here None of the listed here Wet bulb temperature < dry bulb temperature Dew point < wet bulb temperature Both of the options given here None of the listed here Wet bulb temperature < dry bulb temperature Dew point < wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pressure drop through plate tower as compared to that through packed tower, for the same duty will be More Either A or B; depends on the packing height Less Equal More Either A or B; depends on the packing height Less Equal 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) Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol More number of trays are required but the residue composition remains unchanged Less number of trays are required Composition of the residue remains unchanged More number of trays are required and the residue composition is more dilute in methanol More number of trays are required but the residue composition remains unchanged Less number of trays are required ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Raoult's law is applicable to the Ideal solutions Non-ideal gases Real solutions Mixture of water and alcohol Ideal solutions Non-ideal gases Real solutions Mixture of water and alcohol ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid ) T3 √T T1.5 T T3 √T T1.5 T ANSWER DOWNLOAD EXAMIANS APP
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