Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Randomly packed column Wetted wall column Bubble cap column Sieve plate column Randomly packed column Wetted wall column Bubble cap column Sieve plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In an absorption coloumn, the flooding velocity for random packing is __________ that for stacked/regular packing. Equal to Smaller than Either A, or B ; depends on the type of packing Greater than Equal to Smaller than Either A, or B ; depends on the type of packing Greater than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same. Heat and mass Mass and momentum Heat, momentum and mass Heat and momentum Heat and mass Mass and momentum Heat, momentum and mass Heat and momentum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb temperature and dew point being 35°C and 18°C respectively) is passed through a water spray chamber maintained at 15°C. The air will be cooled And dehumidified with decrease in wet bulb temperature At the same relative humidity And humidified And dehumidified with increase in wet bulb temperature And dehumidified with decrease in wet bulb temperature At the same relative humidity And humidified And dehumidified with increase in wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stage efficiency in a leaching process depends on the Rate of diffusion of the solute through the solid and into the liquid Time of contact between the solid and the solution Both A & B Vapour pressure of the solution Rate of diffusion of the solute through the solid and into the liquid Time of contact between the solid and the solution Both A & B Vapour pressure of the solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate. Increases Does not affect Decreases Exponentially increases Increases Does not affect Decreases Exponentially increases ANSWER DOWNLOAD EXAMIANS APP
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