Mass Transfer Flights in a rotary dryer are provided to Increase the residence time of the solid Reduce the residence time of solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas None of these Increase the residence time of the solid Reduce the residence time of solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an operating distillation column, the Driving force for the liquid flow is its specific weight Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column Vapors and liquids are at their dew point and bubble point respectively Highest temperature is encountered at the top of the column Driving force for the liquid flow is its specific weight Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column Vapors and liquids are at their dew point and bubble point respectively Highest temperature is encountered at the top of the column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In liquid extraction, if the selectivity is unity, then Solvent flow rate should be very low No separation will occur Amount of solvent required will be minimum Separation of the constituents is the most effective Solvent flow rate should be very low No separation will occur Amount of solvent required will be minimum Separation of the constituents is the most effective ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Azeotropic distillation is employed to separate High boiling mixture Heat sensitive materials Mixture with very high relative volatility Constant boiling mixture High boiling mixture Heat sensitive materials Mixture with very high relative volatility Constant boiling mixture 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 None of these Dehumidified Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature None of these Dehumidified ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Binary distillation involves the mass transfer by __________ at the gas-liquid interface. Unidirectional diffusion from liquid to gas phase Either A or B A counter diffusion at an almost equal molar rate Unidirectional diffusion from gas to liquid phase Unidirectional diffusion from liquid to gas phase Either A or B A counter diffusion at an almost equal molar rate Unidirectional diffusion from gas to liquid phase ANSWER DOWNLOAD EXAMIANS APP
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