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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
In a vapour compression cycle, the refrigerant immediately after expansion valve is

Liquid
Saturated liquid
Sub-cooled liquid
Wet vapour

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Refrigeration and Air Conditioning
Absorption system normally uses the following refrigerant

Freon-22
Ammonia
CO2
Freon-11

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Refrigeration and Air Conditioning
In actual air-conditioning applications for R-12 and R-22, and operating at a condenser temperature of 40° C and an evaporator temperature of 5° C, the heat rejection factor is about

1
2.15
5.12
1.25

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Zoetrope refrigerants
Halocarbon refrigerants
Hydrocarbon refrigerants
Inorganic refrigerants

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Refrigeration and Air Conditioning
The pressure at the outlet of a refrigerant compressor is called

Discharge pressure
Critical pressure
Suction pressure
Back pressure

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Refrigeration and Air Conditioning
The specific humidity during cooling and dehumidification

Decreases
Remains constant
Increases
None of these

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MORE MCQ ON Refrigeration and Air Conditioning

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