Multiple Choice
Technician A says that when a mineral oil installed into a R-134a system it will not dissolve into the refrigerant and can clog up circulation.Technician B says that all R-12 systems use mineral oils.Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Correct Answer:

Verified
Correct Answer:
Verified
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