Core (Universal)Question 30 of 240
A technician pulls a light-green cylinder from the truck. Under the traditional color code, which refrigerant does light green identify?
a.R-22
b.R-134a
c.R-404A
d.R-410A
Explanation
Under the traditional refrigerant color code, light green identifies R-22, while R-410A is rose (pink), R-134a is light blue, and R-404A is orange. Color codes help technicians grab the right cylinder, but the printed label must always be verified because colors can fade or be reused. Never rely on color alone to identify a refrigerant.
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