What is the most commonly known CFC refrigerant?

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Study for the NOCTI Heating, Ventilation, and Air Conditioning (HVAC) Test. Practice with flashcards and multiple choice questions, each question offers hints and explanations. Get ready for your exam!

Multiple Choice

What is the most commonly known CFC refrigerant?

Explanation:
CFC refrigerants are ozone-depleting chlorofluorocarbons, and the most famously known among them is R-12. R-12, or dichlorodifluoromethane, was widely used in older automotive and residential air conditioning and became the stereotype example of a CFC due to its long-standing or iconic presence in systems before ozone protection regulations. Other options are not CFCs: R-22 is an HCFC (it contains chlorine but is classified separately from CFCs), and R-134a and R-410A are HFCs or blends that do not contain chlorine. Thus, R-12 is the best answer because it is the classic, widely recognized CFC refrigerant.

CFC refrigerants are ozone-depleting chlorofluorocarbons, and the most famously known among them is R-12. R-12, or dichlorodifluoromethane, was widely used in older automotive and residential air conditioning and became the stereotype example of a CFC due to its long-standing or iconic presence in systems before ozone protection regulations. Other options are not CFCs: R-22 is an HCFC (it contains chlorine but is classified separately from CFCs), and R-134a and R-410A are HFCs or blends that do not contain chlorine. Thus, R-12 is the best answer because it is the classic, widely recognized CFC refrigerant.

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