Refrigeration & Air-Conditioning Practice Set-7

August 7, 2021

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1. A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes a power of 30 kW. The coefficient of performance of the system will be

2. In a psychrometric chart, specific humidity (moisture content) lines are

3. The heat rejection factor (HRF) is given by

4. During a refrigeration cycle, heat is rejected by the refrigerant in a

5. In a vapour compression refrigeration system, a throttle valve is used in place of an expander because

6. Most air cooled condensers are designed to operate with a temperature difference of

7. The difference between dry bulb temperature and dew point temperature, is called

8. When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be

9. In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in

10. The wet bulb temperature during sensible cooling of air


 

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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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