Mass Transfer The percentage humidity is less than the relative humidity only at __________ percent humidity. Hundred None of these Both zero and hundred Zero Hundred None of these Both zero and hundred Zero ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? Yes No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high Yes No Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The most economical range of absorption factor is 2 to 2.5 5 to 10 2.5 to 3 1.25 to 2 2 to 2.5 5 to 10 2.5 to 3 1.25 to 2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity. Pressure falls Temperature rises Temperature falls Pressure rises Pressure falls Temperature rises Temperature falls Pressure rises ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.079 0.122 0.152 0.048 0.079 0.122 0.152 0.048 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? Heating and dehumidification at almost constant wet bulb temperature None of these Dehumidification with dry bulb temperature remaining constant Cooling and dehumidification Heating and dehumidification at almost constant wet bulb temperature None of these Dehumidification with dry bulb temperature remaining constant Cooling and dehumidification ANSWER DOWNLOAD EXAMIANS APP
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