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GATE 2023 || Refrigeration & Air Conditioning || Evaluation Quiz 7
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Question 1
Which one of the following expansion processes takes place in a vapour compression cycle?
Question 2
Which of the following is the correct relation between COP of heat pump and COP of refrigerator?
Question 3
If the COP of Carnot refrigerator is 4, then the thermal efficiency of the Carnot engine would be
Question 4
A condenser of a refrigerator rejects heat at the rate of 110 KW. The power input is 50 KW. What is the COP of the refrigerator?
Question 5
The COP of the heat pump is found to be 5.62, and the heat pump operates with the source at 25℃, while the heat absorbed is 2.12 kW. What is the amount of heat rejected ?
Question 6
A carnot heat pump works between temperature limits of 177 ºC and 27 ºC. Its COP is __.
Question 7
In a vapour compression refrigeration cycle for making ice, the condensing temperature for higher COP
Question 8
The ratio of temperatures at the beginning and end of isentropic expansion process in Bell-Coleman air refrigeration cycle is 1.25. What is the COP of the cycle ________?
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ESE & GATE MEGeneralJun 4ESE & GATE ME
