Mass Transfer Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate. Does not affect Exponentially increases Decreases Increases Does not affect Exponentially increases Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation. Either A or B, depends on the mixture composition Equal to Higher than Lower than Either A or B, depends on the mixture composition Equal to Higher than Lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer To get high tray efficiency Gas velocity should be very low Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe Time of contact between the two phases should be less Gas velocity should be very low Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe Time of contact between the two phases should be less ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 1 3.97 600 0.24 1 3.97 600 0.24 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant. Bubble cap column Agitated vessel Packed tower Sieve tray column Bubble cap column Agitated vessel Packed tower Sieve tray column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During the constant rate period of drying of a solid, Increasing the air temperature decreases the drying rate Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs None of these Increasing the air temperature decreases the drying rate Increased air humidity decreases the rate of drying Surface evaporation of unbound moisture occurs None of these ANSWER DOWNLOAD EXAMIANS APP
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