Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which of the following refrigerants has the lowest ozone depletion potential (ODP)?
R-134a (HFC) has an ODP of 0, making it environmentally preferable to CFCs (R-12, R-502) and HCFCs (R-22).
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Question: Which of the following refrigerants has the lowest ozone depletion potential (ODP)?
Answer options:
- R-12
- R-22 ✅ R-134a
- R-502
Correct answer: R-134a
Explanation: R-134a (HFC) has an ODP of 0, making it environmentally preferable to CFCs (R-12, R-502) and HCFCs (R-22).
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Question explanations
- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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