Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the primary hazard associated with working with ammonia (R-717) as a refrigerant?
Ammonia is a highly toxic, corrosive, and pungent gas. Although it has excellent thermodynamic properties, its toxicity requires strict safety protocols.
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Question: What is the primary hazard associated with working with ammonia (R-717) as a refrigerant?
Answer options: ✅ It is highly toxic and corrosive.
- It has a very high global warming potential.
- It is extremely flammable and explosive.
- It rapidly degrades ozone in the atmosphere.
Correct answer: It is highly toxic and corrosive.
Explanation: Ammonia is a highly toxic, corrosive, and pungent gas. Although it has excellent thermodynamic properties, its toxicity requires strict 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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