Mass Transfer The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________ 4 1 3 2 4 1 3 2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At constant pressure, with increase of temperature, the dew point will Increase Decrease Remain unchanged Increase/decrease ; depends on the temperature Increase Decrease Remain unchanged Increase/decrease ; depends on the temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following decreases during evaporative cooling process with recirculated water supply? None of these Relative humidity Wet bulb temperature Partial pressure of vapour None of these Relative humidity Wet bulb temperature Partial pressure of vapour ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor method is used to calculate the number of ideal stages, when Both operating and equilibrium lines are parallel Operating line lies below the equilibrium line Pressure drop in the column is very high Operating line lies above the equilibrium line Both operating and equilibrium lines are parallel Operating line lies below the equilibrium line Pressure drop in the column is very high Operating line lies above the equilibrium line ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During drying operation, it is easier to remove the __________ moisture. Unbound Bound Equilibrium Critical Unbound Bound Equilibrium Critical 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) Less number of trays are required Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged More number of trays are required and the residue composition is more dilute in methanol Less number of trays are required Composition of the residue remains unchanged More number of trays are required but the residue composition remains unchanged More number of trays are required and the residue composition is more dilute in methanol ANSWER DOWNLOAD EXAMIANS APP
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