Refrigeration and Air Conditioning
Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system

Strong solution to ammonia vapour
Weak solution to strong solution
Strong solution to weak solution
Ammonia vapours to weak solution

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Refrigeration and Air Conditioning
Degree of saturation or percentage humidity is

The mass of water vapour present in 1 kg of dry air
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
The mass of water vapour present in 1 m³ of dry air
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure

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Refrigeration and Air Conditioning
In a saturated air-water vapour mixture, the

Dew point temperature is lower than wet bulb temperature
Dry bulb temperature is higher than wet bulb temperature
Dry bulb temperature is higher than dew point temperature
Dry bulb, wet bulb and dew point temperature are same

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