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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The condition of refrigerant after passing through the condenser in a vapour compression system is

Saturated liquid
Dry saturated vapour
Superheated vapour
Wet vapour

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Refrigeration and Air Conditioning
The Freon group of refrigerants are

Hydrocarbon refrigerants
Halocarbon refrigerants
Inorganic refrigerants
Zoetrope refrigerants

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Refrigeration and Air Conditioning
An evaporator is also known as

All of these
Freezing coil
Chilling coil
Cooling coil

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Refrigeration and Air Conditioning
The boiling point of ________ is 10.5°C.

Carbon dioxide
Sulphur dioxide
Ammonia
R-12

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

Back pressure
Discharge pressure
Critical pressure
Suction pressure

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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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