Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Randomly packed column Sieve plate column Bubble cap column Wetted wall column Randomly packed column Sieve plate column Bubble cap column Wetted wall column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible. Increases linearly Increases Decreases Remains same Increases linearly Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If moisture content of solid on dry basis is X, then the same on wet basis is (X + 1)/X (X - 1)/X X/(X + 1) X/(X - 1) (X + 1)/X (X - 1)/X X/(X + 1) X/(X - 1) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Weeping in a distillation column Results due to very low gas velocity Provides large interfacial surface for mass transfer Results due to very high gas velocity Increases tray efficiency Results due to very low gas velocity Provides large interfacial surface for mass transfer Results due to very high gas velocity Increases tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture. Critical None of these Unbound Bound Critical None of these Unbound Bound ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature Dehumidified None of these Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature Dehumidified None of these ANSWER DOWNLOAD EXAMIANS APP
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