Refrigeration and Air Conditioning
Which of the following statement is correct?

The constant enthalpy lines are also constant wet bulb temperature lines
The wet bulb temperature is a measure of enthalpy of moist air
All of the listed here
The wet bulb and dry bulb temperature are equal at saturation condition

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Refrigeration and Air Conditioning
The coefficient of performance of Electrolux refrigerator is the ratio of

Heat supplied by the gas burner minus the heat absorbed by the evaporator to the heat supplied by the gas burner
Heat supplied by the gas burner to the heat absorbed by the evaporator
Heat absorbed by the evaporator minus the heat supplied by the gas burner to the heat absorbed by the evaporator
Heat absorbed by the evaporator to the heat supplied by the gas burner

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