Q124
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
AnswerD.
All of the above
Answer: Option C
Solution
Answer: Option C
Solution:
R-12 is generally preferred over R-22 in deep freezers since It is miscible with oil over large range of temperatures