Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which refrigerant is classified as an A2L (mildly flammable) refrigerant with low GWP, gaining popularity as an R-410A alternative?
R-32 is a single-component HFC with a lower GWP than R-410A and is classified as A2L, making it an emerging replacement.
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Question: Which refrigerant is classified as an A2L (mildly flammable) refrigerant with low GWP, gaining popularity as an R-410A alternative?
Answer options: ✅ R-32
- R-404A
- R-134a
- R-717 (Ammonia)
Correct answer: R-32
Explanation: R-32 is a single-component HFC with a lower GWP than R-410A and is classified as A2L, making it an emerging replacement.
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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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