Mass Transfer For water-ethanol system, the minimum reflux ratio Is the optimum reflux ratio Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is computed from the intercept of the operating line Is the optimum reflux ratio Cannot be computed Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Is computed from the intercept of the operating line ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Bubble cap column Sieve plate column Wetted wall column Randomly packed column Bubble cap column Sieve plate column Wetted wall column Randomly packed column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Tower diameter may be decreased by Increasing the vapour flow rate Using higher reflux ratio Use of increased tray spacing Increasing the liquid flow rate Increasing the vapour flow rate Using higher reflux ratio Use of increased tray spacing Increasing the liquid flow rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, Increased air humidity decreases the rate of drying Increasing the air temperature decreases the drying rate None of these Surface evaporation of unbound moisture occurs Increased air humidity decreases the rate of drying Increasing the air temperature decreases the drying rate None of these Surface evaporation of unbound moisture occurs ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient of liquid is None of these Not affected by the temperature Affected more by temperature than that for gases Affected much less by temperature than that for gases None of these Not affected by the temperature Affected more by temperature than that for gases Affected much less by temperature than that for gases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation, overhead product contains Two components Only saturated liquid Only one component Any number of components Two components Only saturated liquid Only one component Any number of components ANSWER DOWNLOAD EXAMIANS APP
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