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Mechanical Engineering : Heat Transfer, Refrigeration and Air Conditioning - Quiz(MCQ)
R-12 is generally preferred over R-22 in deep freezers since
A)
it has low operating pressures
B)
it gives higher coefficient of performance
C)
it is miscible with oil over large range of temperatures
D)
All of the above

Correct Answer : Option (C) :   it is miscible with oil over large range of temperatures

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