Refrigeration & Air-Conditioning Practice Set-7

August 7, 2021

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1. The wet bulb temperature at 100% relative humidity is ________ dry bulb temperature.

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

3. A refrigerant compressor is used to

4. The relative coefficient of performance is equal to

5. In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the

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. During sensible cooling of air, specific humidity

8. The emissivity of a polished silver body is _________ as compared to black body.

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

10. 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


 

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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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