Refrigeration and Air Conditioning
Moisture should be removed from refrigerants to avoid

Restriction to refrigerant flow
Freezing at the expansion valve
Corrosion of steel plates
All of these

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

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