Refrigeration and Air Conditioning
R-12 is generally preferred over R-22 in deep freezers since

It gives higher coefficient of performance
It has low operating pressures
All of these
It is miscible with oil over large range of temperatures

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
A refrigeration system

Removes heat from a low temperature body and delivers it to a high temperature body
Rejects energy to a low temperature body
None of the listed here
Removes heat from a high temperature body and delivers it to a low temperature body

ANSWER DOWNLOAD EXAMIANS APP