Mass Transfer At 750°K and 1 atm, the approximate value of Schmidt number for air is 10 0.01 1 0.1 10 0.01 1 0.1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flights in a rotary dryer are provided to Reduce the residence time of solid None of these Increase the residence time of the solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas Reduce the residence time of solid None of these Increase the residence time of the solid Lift and shower the solids thus exposing it thoroughly to the drying action of the gas ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? Evaporative cooling Heating only Both heating and humidification Humidification only Evaporative cooling Heating only Both heating and humidification Humidification only 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 0.079 0.152 0.048 0.122 0.079 0.152 0.048 0.122 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbant Increases exponentially Increases Decreases Remains unchanged Increases exponentially Increases Decreases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate. Exponentially increases Decreases Increases Does not affect Exponentially increases Decreases Increases Does not affect ANSWER DOWNLOAD EXAMIANS APP
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