Mass Transfer The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid ) T² √T T³ T T² √T T³ T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent? Cooling and dehumidification None of these Dehumidification with dry bulb temperature remaining constant Heating and dehumidification at almost constant wet bulb temperature Cooling and dehumidification None of these Dehumidification with dry bulb temperature remaining constant Heating and dehumidification at almost constant wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the Approach is 10°F Range is 15°F Neither A nor B Both A & B Approach is 10°F Range is 15°F Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following quantities need not be fixed before starting the design of a co-current absorber? None of the listed here Heat gain or loss Flow rate of entering liquid Flow rate of gas None of the listed here Heat gain or loss Flow rate of entering liquid Flow rate of gas ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio increases, the slope of the operating line for rectifying section Remains constant Data insufficient, cannot be predicted Increases Decreases Remains constant Data insufficient, cannot be predicted Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Solvent used in extractive distillation Does not alter the relative volatility of the original components Is of low volatility Forms a high boiling azeotrope Forms a low boiling azeotrope Does not alter the relative volatility of the original components Is of low volatility Forms a high boiling azeotrope Forms a low boiling azeotrope ANSWER DOWNLOAD EXAMIANS APP
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