Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity None of these Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Ratio of the insoluble to solution is constant Both A & B Neither A nor B Solids are drained to the same extent Ratio of the insoluble to solution is constant Both A & B Neither A nor B Solids are drained to the same extent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A coalescer in a mixer-settler liquid-liquid extraction coloumn Comprises of thin bed of substances of extended surface having high porosity All of these Helps in increasing the settling rate of the bubbles Helps in increasing the bubble size entering the settler Comprises of thin bed of substances of extended surface having high porosity All of these Helps in increasing the settling rate of the bubbles Helps in increasing the bubble size entering the settler ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content. Freeze Tray None of these Rotary Freeze Tray None of these Rotary ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a single component absorber, the operating line is straight only when plotted in term of __________ units. Partial pressure Mole fraction None of these Mole ratio Partial pressure Mole fraction None of these Mole ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following quantities need not be fixed before starting the design of a co-current absorber? Flow rate of gas Heat gain or loss Flow rate of entering liquid None of the listed here Flow rate of gas Heat gain or loss Flow rate of entering liquid None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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