Coefficient of Performance (COP) Quiz
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Questions and Answers

What does the coefficient of performance (COP) express?

  • The ratio of energy supplied to energy consumed
  • The ratio of desired effect produced to the energy supplied (correct)
  • The efficiency of an engine in generating power
  • The total energy input of a refrigeration cycle

    • In the context of a heat pump, what does COP measure?

  • The cooling effect produced
  • The ratio of heating effect produced to the energy input (correct)
  • The energy loss during heating
  • The efficiency of the refrigeration cycle

    • What is the main difference between COP and the efficiency of an engine?

  • COP can be higher than unity, while engine efficiency cannot (correct)
  • Both COP and efficiency have the same definition
  • COP measures energy output only
  • COP directly indicates energy input

    • How is the actual coefficient of performance obtained during a test?

    <p>By finding the ratio of actual N and W values</p> Signup and view all the answers

    What does the term 'relative COP' refer to?

    <p>The ratio of actual COP to theoretical COP</p> Signup and view all the answers

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