The wet-bulb depression is the difference between the dry-bulb temperature and the wet-bulb temperature. If there is 100% humidity, dry-bulb and wet-bulb temperatures are identical, making the wet-bulb depression equal to zero in such conditions.
The difference between dry bulb temperature and wet bulb temperature, is called wet bulb depression.
8) The difference between dry bulb temperature and wet bulb temperature, is called
Answer is:
wet bulb depression
Explanation:
Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers
Answer is:
Correct
Explanation:
Defrosting or Thawing is the process of periodic melting of condensed water vapor on the cooling elements in the refrigerator cabinet.
Defrosting of a refrigerator may be done by stopping the compressor for a short period. Due to opening of the refrigerator door, outside air that contains water vapor enters the refrigerator cabinet. The water vapor in the air condenses on the cooling element ( evaporator coils) in the refrigerator. The accumulation of the condensed water on the evaporator coils lowers the cooling efficiency of the refrigerator. It becomes necessary to defrost the refrigerator in order to optimize it's cooling efficiency.
Answer is:
Pb = pa + pv
Explanation:
According to Dalton's law of partial pressures, the total pressure by a mixture of gases is equal to the sum of the partial pressures of each of the constituent gases. The partial pressure is defined as the pressure each gas would exert if it alone occupied the volume of the mixture at the same temperature.
Answer is:
the ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure
Answer is: