A. Dry bulb temperature
B. Dew point
C. Wet bulb temperature
D. None of these
Related Mcqs:
- During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the _________________ remains constant ?
A. Wet bulb temperature
B. Partial pressure of water vapor
C. Relative humidity
D. None of these - In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________________ its relative saturation?
A. Lower than
B. Higher than
C. Equal to
D. Either A. or B., depends on the mixture composition - The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is___________________?
A. +ve
B. -ve
C. Zero
D. None of these - Which of the following parameters remains constant during chemical dehumidification ?
A. Dry bulb temperature
B. Partial pressure of vapour
C. Wet bulb temperature
D. None of these - For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because__________________?
A. Water has a high latent heat of evaporation
B. Lewis number is close to unity
C. They are always equal under all circumstances
D. Solubility of the components of air in water is very small - The relative saturation of an unsaturated mixture of gas and vapor is independent of the___________________?
A. Nature of the vapor
B. Temperature of the mixture
C. Composition of the mixture
D. None of these - Percentage saturation is _______________ the relative saturation?
A. Always smaller than
B. Always greater than
C. Not related to
D. None of these - 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 - At equilibrium the concentration of water in vapour phase (C*) in kg/m3 of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m3 containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is_________________?
A. 0.0
B. 0.2
C. 0.4
D. 1.0 - When the psychometric ratio is ______________ then the adiabatic saturation temperature and wet bulb temperature becomes equal?
A. 1
B. 1
D. ∞
