A. Wet bulb temperature
B. Partial pressure of water vapor
C. Relative humidity
D. None of these
Related Mcqs:
- Which of the following remains constant during evaporative cooling process with recirculated water supply ?
A. Relative humidity
B. Partial pressure of vapour
C. Wet bulb temperature
D. None of these - Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and _________________?
A. Humidified with wet bulb temperature decreasing
B. Humidified at constant wet bulb temperature
C. Dehumidified
D. None of these - Which of the following increases during evaporative cooling process with recirculated water supply ?
A. Wet bulb temperature
B. Relative humidity
C. Partial pressure of vapour
D. Both B. and C. - Which of the following decreases during evaporative cooling process with recirculated water supply ?
A. Wet bulb temperature
B. Relative humidity
C. Partial pressure of vapour
D. None of these - The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C ?
A. 25
B. > 25
C. < 25
D. – 25 - The wet and ‘dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be ______________ °C?
A. 25
B. > 25
C. < 25
D. – 25 - 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__________________?
A. 0.048
B. 0.079
C. 0.122
D. 0.152 - Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C ?
A. Humidification only
B. Heating only
C. Both heating and humidification
D. Evaporative cooling - Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be__________________?
A. Cooled
B. Humidified
C. Both A. & B.
D. Dehumidified - With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature) ?
A. Increases
B. Remains unchanged
C. Decreases
D. Decreases linearly
