Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%? Never Yes ; if the reflux ratio is maximum Normally not; but is possible if infinite number of plates are put Yes Never Yes ; if the reflux ratio is maximum Normally not; but is possible if infinite number of plates are put Yes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient is directly proportional to DAB according to the __________ theory. Film Surface-renewal None of these Penetration Film Surface-renewal None of these Penetration ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the Thermal diffusivity to the mass diffusivity Momentum diffusivity to the thermal diffusivity None of these Momentum diffusivity to the mass dif-fusivity Thermal diffusivity to the mass diffusivity Momentum diffusivity to the thermal diffusivity None of these Momentum diffusivity to the mass dif-fusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio, in a continuous counter-current extraction is increased, the number of stages Increase Decrease Can either increase or decrease, depends on the system Remain unchanged Increase Decrease Can either increase or decrease, depends on the system Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as Re0.83 Re0.53 Re Re0.33 Re0.83 Re0.53 Re Re0.33 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Both A & B Solids are drained to the same extent Ratio of the insoluble to solution is constant Neither A nor B Both A & B Solids are drained to the same extent Ratio of the insoluble to solution is constant Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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