engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Refrigeration and Air Conditioning Air Conditioning
Consider the following statements:
1. If air is heated in a closed chamber, its dew point will increases
2. As relative humidity decreases, the difference between the wet-bulb temperature and dew point will increase.
3. In spray humidification process, the enthalpy of air will decrease.
4. The dew-point temperature is always an indication of moisture content of the air
Which of these statements are correct?1
1 and 2
2
2 and 4
3
1 and 3
4
3 and 4