Mass Transfer Which of the following provides maximum contact surface for a liquid-vapour system? Seive-plate column Bubble-cap plate column Wetted wall column Packed tower Seive-plate column Bubble-cap plate column Wetted wall column Packed tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, Reboiler load and condenser load are minimum The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux Reboiler load and condenser load are minimum The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture? Rag paper Bamboo Inorganic solids Anthracite coal Rag paper Bamboo Inorganic solids Anthracite coal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Drift in a cooling tower is All of these Desirable The water entrained by the circulating air Dependent on the water lost by evaporation All of these Desirable The water entrained by the circulating air Dependent on the water lost by evaporation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) √T T² T T⁴ √T T² T T⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate efficiency Increases due to weeping and dumping of liquid Is a function of the mass transfer between liquid and vapour Increases due to foaming Increases due to liquid entrainment Increases due to weeping and dumping of liquid Is a function of the mass transfer between liquid and vapour Increases due to foaming Increases due to liquid entrainment ANSWER DOWNLOAD EXAMIANS APP
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