Refrigeration & Air-Conditioning Practice Set-5

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1. The material of pipe lines for a system using Freon as a refrigerant should be

2. Short horizontal lines on pressure-enthalpy chart show

3. The cooling system used for supersonic aircrafts and rockets is

4. One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

5. In vapour compression cycle the condition off refrigerant is dry saturated vapour

6. In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by

7. In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)

8. In a refrigerating machine, heat rejected is _________ heat absorbed.

9. The humidity ratio or specific humidity is the mass of water vapour present in

10.  In which of the following refrigeration system, waste heat can be effectively used?


 

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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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