Refrigeration & Air-Conditioning Practice Set-3

May 18, 2021

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1. When the temperature of the surrounding is higher than the temperature of the body, then the heat loss by convection from the body to the surrounding will be

2. Which of the following is not a desirable property of a refrigerant?

3. The freezing point of sulphur dioxide is

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

5. The operating pressure for refrigerating units using R-12 as a refrigerant is

6. Most thermostatic expansion valves are set for a superheat of

7. A thermostatic expansion valve in a refrigeration system

8. In a refrigeration system, the expansion device is connected between the

9. For obtaining high COP, the pressure range of compressor should be

10. The bank of tubes at the back of domestic refrigerator is


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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