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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Most of the domestic refrigerators work on the following refrigeration system

Electrolux refrigerator
Vapour compression
Carnot cycle
Vapour absorption

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Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

Freon-11
Freon-22
Ammonia
CO2

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Refrigeration and Air Conditioning
During humidification process, __________ increases.

Wet bulb temperature
Relative humidity
Specific humidity
Dry bulb temperature

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Refrigeration and Air Conditioning
The formation of frost on cooling coils in a refrigerator

Increases power consumption
Increases heat transfer
Improves C.O.P. of the system
Reduces power consumption

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Zoetrope refrigerants
Hydrocarbon refrigerants
Inorganic refrigerants
Halocarbon refrigerants

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Refrigeration and Air Conditioning
The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called

Newton's law of gases
Avogadro's hypothesis
Dalton's law of partial pressures
Kinetic theory of gases

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