Railways Technical Ability Refrigeration and Air-Conditioning Question Bank Refrigeration and Air-Conditioning

  • question_answer The coefficient of performance (COP) of a refrigerator working as a heat pump is given by:

    A) \[{{(COP)}_{\text{heat}\,\,\text{pump}}}\,=\,\,{{(COP)}_{\text{refrigerator}}}+2\]

    B) \[{{(COP)}_{\text{heat}\,\,\text{pump}}}\,=\,\,{{(COP)}_{\text{refrigerator}}}+1\]

    C) \[{{(COP)}_{\text{heat}\,\,\text{pump}}}\,=\,\,{{(COP)}_{\text{refrigerator}}}-1\]

    D) \[{{(COP)}_{\text{heat}\,\,\text{pump}}}\,=\,\,{{(COP)}_{\text{refrigerator}}}\]

    Correct Answer: B


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