Question 28Refrigeration & AC - 1st Asst/Chief

70% to pass

Alkyl benzene ISO 32 cSt synthetic refrigerant oil is miscible and suitable to use with which of the following refrigerants?

AR-22
BR-32
CR-134a
DR-143a
AI Explanation

The correct answer is A) R-22. Alkyl benzene ISO 32 cSt synthetic refrigerant oil is miscible and suitable for use with R-22 (chlorodifluoromethane) refrigerant. This type of refrigerant oil is designed to be compatible with and soluble in R-22, which was a commonly used refrigerant in the past. The other refrigerant options, R-32, R-134a, and R-143a, are not compatible with this particular refrigerant oil. These other refrigerants require different types of compressor oils that are specifically formulated for their chemical properties.