Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP) of 0?
R-134a is an HFC with an ODP of 0, making it an ozone-friendly refrigerant. R-22 and R-12 are CFC/HCFCs with ODP.
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Question: Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP) of 0?
Answer options: ✅ R-134a
- R-22
- R-12
- R-717
Correct answer: R-134a
Explanation: R-134a is an HFC with an ODP of 0, making it an ozone-friendly refrigerant. R-22 and R-12 are CFC/HCFCs with ODP.
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- 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
- Which type of electric motor requires a capacitor for starting and running, offering higher efficiency and bet
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