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Refrigeration and Air Conditioning

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

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

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Refrigeration and Air Conditioning
Superheating in a refrigeration cycle

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

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Refrigeration and Air Conditioning
The unit of thermal diffusivity is

m/hK
m/h
m²/hK
m²/h

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Refrigeration and Air Conditioning
Which of the following cycles uses air as the refrigerant?

Ericson
Stirling
Bell Coleman
Carnot

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Refrigeration and Air Conditioning
The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

Higher
None of these
Lower
Same

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Refrigeration and Air Conditioning
In vapour compression cycle the condition of refrigerant is superheated vapour

After passing through the expansion or throttle valve
After passing through the condenser
Before entering the expansion valve
Before passing through the condenser

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MORE MCQ ON Refrigeration and Air Conditioning

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