Refrigeration and air-conditioning objective questions and answers


11. The co-efficient of performence is always.......one


   A.Equal to

   B.less than

   C.Greater than

   D.None of the above


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C.Greater than

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12. In ammonia-hydrogen refrigerator,.......


   A.Ammonia is absorbed in hydrogen

   B.Ammonia is absorbed in water

   C.Ammonia is evaporets in hydrogen

   D.Ammonia is evaporets in ammonia


✔ View Answer


C.Ammonia is evaporets in hydrogen

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13. For summer air conditioning,the relative humidity should not be less than....


   A.40%

   B.60%

   C.75%

   C.90%


✔ View Answer


B.60%
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    14. For winter air conditioning,the relative humidity should not be more than.......


       A.40%

       B.60%

       C.75%

       C.90%


    ✔ View Answer


    A.40%

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    15. The sensible heat factor for auditoriam or cinema hall is generally kept as.......


       A.0.6

       B.0.7

       C.0.8

       D.0.9


    ✔ View Answer


    B.0.7

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