Refrigeration & Air-Conditioning Practice Set-7

August 7, 2021

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

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

3. The refrigerant used in small tonnage commercial machines (hermetically sealed units) is

4. In case of sensible cooling of air, the coil efficiency is given by

5. The human body feels comfortable when the heat stored in the body is

6. 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

7. In mechanical refrigeration system, the refrigerant has the maximum temperature

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

10. During sensible cooling of air, specific humidity


 

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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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