Major modification required to produce temperature of – 200?C in a vapour compression refrigeration system using Freon 12 as refrigerant, is

Refrigeration and Air conditioning Mcqs
BILAL KHATTAK0

A.Size of compressor required would be large to handle volumes of vapour
B.Compression ratio has to be restricted till stronger body of compressor is needed
C.Condenser capacity must be increased to handle the refrigerant
D.Insulation should be capable of withstanding such low temperatures
E.Freon 12 cannot be used for such low temperatures

Related Mcqs:

  1. In a mechanical refrigeration system the refrigerant occurs as liquid (or very wet vapour) between
  2. In which section of a vapour compression system, the refrigerant is generally in the form of a wet vapour?
  3. In a mechanical refrigeration system the highest temperature of refrigerant occurs
  4. Out of the following refrigerants which one will provide highest compressor displacement per tonne of refrigeration in a vapour compression system operating between fixed temperatures
  5. In a vapour compression cycle the lowest temperature occurs in
  6. In a vapour compression refrigeration cycle using ammonia as a refrigerant the temperature of ammonia after compression will be at the range
  7. In a vapour absorption refrigeration system the power is required for vapour compressor as compared to that in vapour compression cycle is
  8. In vapour compression cycle the highest temperature of the refrigerant during the cycle occurs
  9. In a vapour compression refrigeration cycle, high head pressure is indicated which does not change even when compressor is stopped and allowed to cool. The probable cause may be
  10. Oil separator in a refrigeration cycle is installed

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