Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. Critical temperature is the temperature above which

2. Highest temperature encountered in refrigeration cycle should be

3. Freon group of refrigerants are

4. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature)

5. A human body feels comfortable when the heat produced by the metabolism of human body is equal to the

6. In a refrigeration system, heat absorbed in comparison to heat rejected is

7. Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of

8. The minimum temperature to which water can be cooled in a cooling tower is

9. The condition of refrigerant after passing through the condenser in a vapour compression system is

10. In a lithium bromide absorption refrigeration system


 

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