Refrigeration and air-conditioning objective questions and answers


31. Rating of a domestic refrigerator is of the order of.......


   A.0.1 ton

   B.5 ton

   C.10 ton

   D.40 ton

   E.100 ton


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A.0.1 ton

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32. Air refrigeration operates on.......


   A.Carnot cycle

   B.Reversed carnot cycle

   C.Rankine cycle

   D.Erricson cycle

   E.Brayton cycle


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E.Brayton cycle

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33. Air refrigeration cycles is used in....


   A.Domestic refrigerators

   B.Commercial refrigerators

   C.Air conditioning

   D.Gas liquefaction


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D.Gas liquefaction

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34. The C.O.P. of domestic refrigerator.......


   A.Is less than 1

   B.Is more than 1

   C.Is equal to 1

   D.None of the above


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B.Is more than 1

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35. Which type of compressor is used in domestic refrigerator.......


   A.Centrifugal

   B.Axial

   C.Miniature sealed unit

   D.Piston type reciprocating


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D.Piston type reciprocating

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