Mass Transfer To get high tray efficiency Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less Interfacial surface between liquid and gas phase should be large Gas velocity should be very low Liquid entrainment should be severe Time of contact between the two phases should be less ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Both A & B Ratio of the insoluble to solution is constant Neither A nor B Solids are drained to the same extent Both A & B Ratio of the insoluble to solution is constant Neither A nor B Solids are drained to the same extent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Leaching of sugar from sugar beets is done by Hot water Hexane Lime water Dilute H₂SO₄ Hot water Hexane Lime water Dilute H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of these columns incurs the lowest pressure drop? Packed column (with stacked packing) Packed column (with dumped packing) Bubble plate column Pulse column Packed column (with stacked packing) Packed column (with dumped packing) Bubble plate column Pulse column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The term "approach" in a cooling tower refers to the difference in the temperature of the None of these Hot water entering and the cooled water leaving the cooling tower Cold water leaving the tower and the wet bulb temperature of the surrounding air Hot water entering the tower and the wet bulb temperature of the surrounding air None of these Hot water entering and the cooled water leaving the cooling tower Cold water leaving the tower and the wet bulb temperature of the surrounding air Hot water entering the tower and the wet bulb temperature of the surrounding air ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, continuous rectification to get pure products will require Less number of trays Low reflux ratio High reflux ratio Small cross-section column Less number of trays Low reflux ratio High reflux ratio Small cross-section column ANSWER DOWNLOAD EXAMIANS APP
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