1116Mechanical EngineeringMedium
A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is________?
ABrine
BAmmonia
CHydrocarbon refrigerant
DFreon
ECarbon dioxide
Correct answer
E. Carbon dioxide
Explanation
The correct answer is Carbon dioxide.