Refrigeration and Air Conditioning
The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Compression of the refrigerant vapour
Evaporation of the refrigerant liquid
Metering of the refrigerant liquid
Condensation of the refrigerant vapour

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

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

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