Question 12Refrigeration/AC - QMED70% to pass
Some chlorinated fluorocarbon refrigerants may decompose into a toxic irritating gas under what conditions?
AI Explanation
The correct answer is A) exposed to an open flame or hot surface.
Chlorinated fluorocarbon refrigerants, such as R-12 and R-22, can decompose into toxic and irritating gases like phosgene and hydrogen chloride when exposed to high temperatures or open flames. This is due to the chemical breakdown of the refrigerant molecules under these conditions. The other answer choices do not directly cause the decomposition of these refrigerants into toxic gases.
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