Mass Transfer Plate efficiency in a distillation column is reduced due to the __________ of liquid. Entrainment Weeping & dumping All of these Foaming Entrainment Weeping & dumping All of these Foaming ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) √(KL².DA) KL².DA KL²/DA KL/DA² √(KL².DA) KL².DA KL²/DA KL/DA² ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is Natural draft cooling tower None of these Induced draft cooling tower Spray chamber Natural draft cooling tower None of these Induced draft cooling tower Spray chamber ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is 2000 1000 1500 2500 2000 1000 1500 2500 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of these columns incurs the lowest pressure drop? Packed column (with dumped packing) Pulse column Packed column (with stacked packing) Bubble plate column Packed column (with dumped packing) Pulse column Packed column (with stacked packing) Bubble plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler Decreases Remains unaffected And the heat required in reboiler decreases Increases Decreases Remains unaffected And the heat required in reboiler decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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