Mass Transfer In a counter-current liquid extractor Only one of the liquids may be pumped at any desired rate Both liquids can have any desired flow rate Both liquids flow at fixed rate Liquid's flow rate depends upon the temperature and pressure Only one of the liquids may be pumped at any desired rate Both liquids can have any desired flow rate Both liquids flow at fixed rate Liquid's flow rate depends upon the temperature and pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During constant rate drying period, vaporisation rate per unit drying surface area Decreases with time Does not change with time Increases with time Does not affect the moisture content of the wet solid Decreases with time Does not change with time Increases with time Does not affect the moisture content of the wet solid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In distillation columns, the number of bubble caps per tray primarily depends upon the Feed composition Allowable gas and liquid velocities Allowable gas velocity Allowable liquid velocity Feed composition Allowable gas and liquid velocities Allowable gas velocity Allowable liquid velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer HETP is numerically equal to HTU, only when the operating line And equilibrium lines are parallel Lies above the equilibrium line Lies below the equilibrium line Is far from the equilibrium line And equilibrium lines are parallel Lies above the equilibrium line Lies below the equilibrium line Is far from the equilibrium line ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 15 min 51 min 94 min 71 min 15 min 51 min 94 min 71 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When both the fluids flow concurrently in an absorber, the slope of the operating line is 1 -1 + ve - ve 1 -1 + ve - ve ANSWER DOWNLOAD EXAMIANS APP
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