Mass Transfer Under conditions of flooding in packed tower, the gas pressure drop Remains constant Decreases rapidly Is maximum Increases rapidly Remains constant Decreases rapidly Is maximum Increases rapidly ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Solvent used in extractive distillation Forms a low boiling azeotrope Forms a high boiling azeotrope Does not alter the relative volatility of the original components Is of low volatility Forms a low boiling azeotrope Forms a high boiling azeotrope Does not alter the relative volatility of the original components Is of low volatility ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%? Yes Never Normally not; but is possible if infinite number of plates are put Yes ; if the reflux ratio is maximum Yes Never Normally not; but is possible if infinite number of plates are put Yes ; if the reflux ratio is maximum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer One mole feed of a binary mixture of a given composition is flash vaporised at a fixed P and T. If Raoult's law is obeyed, then changing the feed composition would effect The fraction vaporised but not the product composition The product composition but not the fraction vaporised The product composition as well as the fraction vaporised Neither the product composition nor the fraction vaporised The fraction vaporised but not the product composition The product composition but not the fraction vaporised The product composition as well as the fraction vaporised Neither the product composition nor the fraction vaporised 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 1000 2500 2000 1500 1000 2500 2000 1500 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the Pressure rises Pressure falls Temperature falls Temperature rises Pressure rises Pressure falls Temperature falls Temperature rises ANSWER DOWNLOAD EXAMIANS APP
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