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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
For obtaining high COP, the pressure range of compressor should be

Any value
High
Optimum
Low

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Refrigeration and Air Conditioning
The desirable property of a refrigerant is

High latent heat of vaporisation
High critical temperature
Low boiling point
All of these

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Hydrocarbon refrigerants
Halocarbon refrigerants
Zoetrope refrigerants
Inorganic refrigerants

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Refrigeration and Air Conditioning
If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of -23°C, then the Carnot COP will be

6
1.2
0.2
5

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Refrigeration and Air Conditioning
Air refrigeration cycle is used in

Gas liquefaction
Air conditioning
Domestic refrigerators
Commercial refrigerators

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Refrigeration and Air Conditioning
The difference between dry bulb temperature and wet bulb temperature, is called

Dew point depression
Dry bulb depression
Degree of saturation
Wet bulb depression

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MORE MCQ ON Refrigeration and Air Conditioning

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