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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle?

1.25
0.5
0.8
0.25

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Inorganic refrigerants
Halocarbon refrigerants
Zoetrope refrigerants
Hydrocarbon refrigerants

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Refrigeration and Air Conditioning
Refrigeration in aeroplanes usually employs the following refrigerant

Freon-22
Air
Freon-11
CO2

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Refrigeration and Air Conditioning
Chaperon equation is a relation between

Temperature and enthalpy
Temperature, pressure and enthalpy
Temperature, pressure, specific volume and enthalpy
Specific volume and enthalpy

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Refrigeration and Air Conditioning
The capacity of a domestic refrigerator is in the range of

3 to 5 TR
5 to 7 TR
1 to 3 TR
0.1 to 0.3 TR

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Refrigeration and Air Conditioning
Where does the lowest temperature occur in a vapour compression cycle?

Compressor
Expansion valve
Condenser
Evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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