Mass Transfer Very tall packed towers are divided into series of beds to Avoid flooding Avoid channelling Reduce liquid hold-up Reduce the overall pressure drop Avoid flooding Avoid channelling Reduce liquid hold-up Reduce the overall pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At constant pressure, with increase of temperature, the dew point will Decrease Increase Remain unchanged Increase/decrease ; depends on the temperature Decrease Increase Remain unchanged Increase/decrease ; depends on the temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture. Critical None of these Unbound Bound Critical None of these Unbound Bound ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Tower diameter may be decreased by Use of increased tray spacing Increasing the liquid flow rate Using higher reflux ratio Increasing the vapour flow rate Use of increased tray spacing Increasing the liquid flow rate Using higher reflux ratio Increasing the vapour flow rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%? Never Yes ; if the reflux ratio is maximum Yes Normally not; but is possible if infinite number of plates are put Never Yes ; if the reflux ratio is maximum Yes Normally not; but is possible if infinite number of plates are put ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature. None of these Dry bulb Dew point Wet bulb None of these Dry bulb Dew point Wet bulb ANSWER DOWNLOAD EXAMIANS APP
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