Mass Transfer Drying operation under vacuum is carried out to Increase drying temperature Dry materials having high bound moisture content Dry those materials which have very high unbound mositure content Reduce drying temperature Increase drying temperature Dry materials having high bound moisture content Dry those materials which have very high unbound mositure content Reduce drying temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Percentage saturation is __________ the relative saturation. None of these Always smaller than Not related to Always greater than None of these Always smaller than Not related to Always greater than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number. Stanton Schmidt Sherwood Peclet Stanton Schmidt Sherwood Peclet ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 0.4 1 0.2 0.4 1 0.2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of None of these Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity None of these Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as D0.5 D1.5 D 1/D D0.5 D1.5 D 1/D ANSWER DOWNLOAD EXAMIANS APP
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