Mass Transfer Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes? Wetted wall columns Packed towers Spray towers Plate towers Wetted wall columns Packed towers Spray towers Plate towers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Wetted wall column Bubble cap column Sieve plate column Randomly packed column Wetted wall column Bubble cap column Sieve plate column Randomly packed column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When an unsaturated air-water mixture is heated at constant pressure, then The relative humidity decreases The specific humidity decreases The partial pressure of water vapour increases The relative humidity increases The relative humidity decreases The specific humidity decreases The partial pressure of water vapour increases The relative humidity increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is Zero Equal to the heat of formation of surface compound Called integral heat of adsorption Equal to the heat of wetting Zero Equal to the heat of formation of surface compound Called integral heat of adsorption Equal to the heat of wetting ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Total reflux in a distillation operation requires minimum Reboiler load All of these Number of plates Condenser load Reboiler load All of these Number of plates Condenser load ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The drying time between fixed moisture contents within the 'constant rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid ) T T3 T1.5 √T T T3 T1.5 √T ANSWER DOWNLOAD EXAMIANS APP
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