Mass Transfer Flooding results in Low tray efficiency Good contact between the fluids High tray efficiency High gas velocity Low tray efficiency Good contact between the fluids High tray efficiency High gas velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient varies as DAB0.5, according to the __________ theory. Penetration Film Surface renewal None of these Penetration Film Surface renewal None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 15 min 71 min 51 min 94 min 15 min 71 min 51 min 94 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement. Major decrease in the number of No change in theoretical None of the listed here Marginal decrease in the number of Major decrease in the number of No change in theoretical None of the listed here Marginal decrease in the number of ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Packed column distillation is limited to the column __________ metres. Height < 6 Diameter < 0.6 Neither A nor B Both A & B Height < 6 Diameter < 0.6 Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.122 0.048 0.079 0.152 0.122 0.048 0.079 0.152 ANSWER DOWNLOAD EXAMIANS APP
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