Mass Transfer Which of the following assumes constant molal vaporisation and overflow? Ponchan-Savarit method Plate absorption column Enthalpy concentration method McCabe-Thiele method Ponchan-Savarit method Plate absorption column Enthalpy concentration method McCabe-Thiele method ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of L/mG ratio for economical absorption operation ranges from 1.25 to 2.0 2.5 to 3.5 0.5 to 0.8 0.8 to 1.2 1.25 to 2.0 2.5 to 3.5 0.5 to 0.8 0.8 to 1.2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flash distillation is Same as differential distillation Same as simple distillation Most useful for handling binary systems Used for multicomponent systems like crude refining Same as differential distillation Same as simple distillation Most useful for handling binary systems Used for multicomponent systems like crude refining ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Weeping in a distillation column Increases tray efficiency Results due to very high gas velocity Results due to very low gas velocity Provides large interfacial surface for mass transfer Increases tray efficiency Results due to very high gas velocity Results due to very low gas velocity Provides large interfacial surface for mass transfer ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Bubble cap column Randomly packed column Wetted wall column Sieve plate column Bubble cap column Randomly packed column Wetted wall column Sieve plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Channelling is most severe In towers packed with stacked packing At very high liquid flow rate In towers packed randomly with crushed solids In dumped packing of regular units In towers packed with stacked packing At very high liquid flow rate In towers packed randomly with crushed solids In dumped packing of regular units ANSWER DOWNLOAD EXAMIANS APP
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