Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which of the following actions is a direct consequence of the Montreal Protocol and its amendments in Canada?
The Montreal Protocol initially targeted ozone-depleting substances like CFCs and HCFCs. Its Kigali Amendment, ratified by Canada, added HFCs to the list of con
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Question: Which of the following actions is a direct consequence of the Montreal Protocol and its amendments in Canada?
Answer options:
- Increased production of R-22 for new equipment. ✅ Phasedown of HFC refrigerants.
- Promotion of CFC refrigerants as energy-efficient options.
- Mandatory use of hydrocarbon refrigerants in all applications.
Correct answer: Phasedown of HFC refrigerants.
Explanation: The Montreal Protocol initially targeted ozone-depleting substances like CFCs and HCFCs. Its Kigali Amendment, ratified by Canada, added HFCs to the list of controlled substances, leading to a phasedown of their production and consumption to reduce their global warming impact.
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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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