Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Increases with time Does not change with time Does not affect the moisture content of the wet solid Decreases with time Increases with time Does not change with time Does not affect the moisture content of the wet solid Decreases with time ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio in a distillation coloumn is increased from the minimum, the Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly Total cost first decreases and then increases Slope of the operating line in stripping section decreases Liquid flow increases while the vapor flow decreases for a system Number of plates decreases very slowly first and then more and more rapidly Total cost first decreases and then increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor method is used to calculate the number of ideal stages, when Pressure drop in the column is very high Operating line lies above the equilibrium line Operating line lies below the equilibrium line Both operating and equilibrium lines are parallel Pressure drop in the column is very high Operating line lies above the equilibrium line Operating line lies below the equilibrium line Both operating and equilibrium lines are parallel ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Remains same Depend on saturated boiling point; may increase or decrease Decrease Increase Remains same Depend on saturated boiling point; may increase or decrease Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant. Sieve tray column Bubble cap column Packed tower Agitated vessel Sieve tray column Bubble cap column Packed tower Agitated vessel ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is Calculated Known Not required Unknown Calculated Known Not required Unknown ANSWER DOWNLOAD EXAMIANS APP
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