Refrigeration & Air Conditioning Mechanic Red Seal · Question
Which of the following refrigerants is considered a 'natural refrigerant' and requires careful handling due to its high toxicity?
Ammonia (R-717) is a highly efficient natural refrigerant but is toxic and flammable, requiring specific safety protocols.
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Question: Which of the following refrigerants is considered a 'natural refrigerant' and requires careful handling due to its high toxicity?
Answer options: ✅ Ammonia (R-717)
- R-410A
- R-134a
- R-22
Correct answer: Ammonia (R-717)
Explanation: Ammonia (R-717) is a highly efficient natural refrigerant but is toxic and flammable, requiring specific safety protocols.
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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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