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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During humidification process, __________ increases.

Dry bulb temperature
Wet bulb temperature
Relative humidity
Specific humidity

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Refrigeration and Air Conditioning
The wet bulb temperature during sensible cooling of air

Increases
Decreases
None of these
Remains constant

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Refrigeration and Air Conditioning
The capillary tube is not used in large capacity refrigeration systems because

Cost is too high
Capacity control is not possible
Required pressure drop cannot be achieved
It is made of copper

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Refrigeration and Air Conditioning
The process, generally used in summer air conditioning to cool and dehumidify the air, is called

Cooling and dehumidification
Heating and humidification
Dehumidification
Humidification

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Hydrocarbon refrigerants
Inorganic refrigerants
Zoetrope refrigerants
Halocarbon refrigerants

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Refrigeration and Air Conditioning
The mass of water vapour present in __________ is called absolute humidity.

1 kg of wet air
1 m3 of dry air
1 kg of dry air
1 m3 of water

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