engineering recuitment ISRO Scientist Mechanical Mock Test Refrigeration and Air Conditioning Air Conditioning Psychrometric Chart and Processes
Consider the following statements with regard to air-conditioning systems:
1. In adiabatic saturation process, air-vapour mixture undergoes a process of constant relative humidity
2. Wet bulb temperature of air whose relative humidity is 100 is equal to the dew point temperature
3. In winter air conditioning, the process is heating and humidification
4. For designing air conditioning ducts, equal friction method automatically reduces the air velocity in the duct in the direction of flow
Which of the above statements are correct?1
1 and 2
2
1 and 4
3
2 and 3
4
3 and 4