Mass Transfer The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same. Heat, momentum and mass Mass and momentum Heat and momentum Heat and mass Heat, momentum and mass Mass and momentum Heat and momentum Heat and mass ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Water entrained by circulating air in cooling towers is termed as None of the listed here Vapor load Blow down Drift None of the listed here Vapor load Blow down Drift ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the Pressure drop in the equipment will be very high Packing may be crushed due to thermal expansion/contraction of the components of the equipments Viscosity variation of the fluids may cause channeling/flooding None of these Pressure drop in the equipment will be very high Packing may be crushed due to thermal expansion/contraction of the components of the equipments Viscosity variation of the fluids may cause channeling/flooding None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Ordinary diffusion process is also called __________ diffusion. Pressure Forced Concentration Thermal Pressure Forced Concentration Thermal 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 and the residue composition is more dilute in methanol Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged Less number of trays are required More number of trays are required and the residue composition is more dilute in methanol Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged Less number of trays are required ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Leaching rate is independent of the Particle size Temperature Agitation None of the listed here Particle size Temperature Agitation None of the listed here ANSWER DOWNLOAD EXAMIANS APP