Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which refrigerant type has a high GWP but zero ODP, making it a transitional option in some applications?
HFCs have zero ODP but significant GWP, leading to their eventual phase-down in many regions.
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Question: Which refrigerant type has a high GWP but zero ODP, making it a transitional option in some applications?
Answer options: ✅ HFC (Hydrofluorocarbon)
- CFC (Chlorofluorocarbon)
- HCFC (Hydrochlorofluorocarbon)
- Natural refrigerants (e.g., ammonia, CO2)
Correct answer: HFC (Hydrofluorocarbon)
Explanation: HFCs have zero ODP but significant GWP, leading to their eventual phase-down in many regions.
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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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