Mass Transfer Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty? Bubble cap tower Wetted wall tower Perforated tray tower Grid tray tower Bubble cap tower Wetted wall tower Perforated tray tower Grid tray tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following provides maximum contact surface for a liquid-vapour system? Wetted wall column Packed tower Seive-plate column Bubble-cap plate column Wetted wall column Packed tower Seive-plate column Bubble-cap plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Air at a particular humidity is heated in a furnace. The new dew point Depends on the extent of heating Decreases Remain unchanged Increases Depends on the extent of heating Decreases Remain unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relative saturation of an unsaturated mixture of gas and vapor is independent of the Composition of the mixture None of these Temperature of the mixture Nature of the vapor Composition of the mixture None of these Temperature of the mixture Nature of the vapor ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation columns, the number of bubble caps per tray primarily depends upon the Allowable gas and liquid velocities Feed composition Allowable gas velocity Allowable liquid velocity Allowable gas and liquid velocities Feed composition Allowable gas velocity Allowable liquid velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high Yes No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high Yes ANSWER DOWNLOAD EXAMIANS APP
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