Mass Transfer Blowdown in a cooling tower Increases the scale forming tendencies of water Is undesirable All of these Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities Increases the scale forming tendencies of water Is undesirable All of these Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a counter-current extractor, as the axial mixing increases, the extraction efficiency Depends on the pressure of the system Decreases Increases Remains unchanged Depends on the pressure of the system Decreases Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of mass transfer is not dependent upon the Both A & B Degree of dispersion of one fluid in the other Interfacial surface exposed between the phases None of these Both A & B Degree of dispersion of one fluid in the other Interfacial surface exposed between the phases None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stacked packing compared to dumped packing Gives higher pressure drop Both A & B Provides poorer contact between the fluids Gives lower pressure drop Gives higher pressure drop Both A & B Provides poorer contact between the fluids Gives lower pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are porous Alumina None of these Synthetic zeolites crystals/metal alumino-silicates Silica Alumina None of these Synthetic zeolites crystals/metal alumino-silicates Silica ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 1.2 to 1.5 3 to 4 5 2.5 to 3 1.2 to 1.5 3 to 4 5 2.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
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