Refrigeration and Air Conditioning - Mechanical Engineering Questions and Answers

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R-12 is generally preferred over R-22 in deep freezers since

It has low operating pressures

It gives higher coefficient of performance

It is miscible with oil over large range of temperatures

All of the above

Answer : Option C

Explanation :

R-12 is generally preferred over R-22 in deep freezers since It is miscible with oil over large range of temperatures

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