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Refrigeration and Air Conditioning

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
Under cooling in a refrigeration cycle

Increases C.O.P
Other factors decide C.O.P
Decreases C.O.P
O.P remains unaltered

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Refrigeration and Air Conditioning
Bell Coleman cycle is a

Reversed Joule cycle
Reversed Otto cycle
Reversed Rankine cycle
Reversed Carnot cycle

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Refrigeration and Air Conditioning
The colour of the flame of halide torch, in case of leakage of Freon refrigerant, will change to

Yellow
Red
Orange
Bright green

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Refrigeration and Air Conditioning
In aircraft, air refrigeration Cycle is used because of

Higher coefficient of performance
Low weight per tonne of refrigeration
High heat transfer rate
Low temperature at high altitudes

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Refrigeration and Air Conditioning
In a vapour compression system, the condition of refrigerant before passing through the condenser is

Dry saturated vapour
Wet vapour
Superheated vapour
Saturated liquid

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MORE MCQ ON Refrigeration and Air Conditioning

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