Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the maximum allowable working pressure (MAWP) on a refrigeration system determined by?
The MAWP of a refrigeration system is limited by the component with the lowest pressure rating in the high-pressure side of the system, as this is the weakest l
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Question: What is the maximum allowable working pressure (MAWP) on a refrigeration system determined by?
Answer options:
- The compressor's discharge pressure
- The highest pressure rating of any component in the system
- The design pressure of the evaporator ✅ The lowest pressure rating of any component in the system
Correct answer: The lowest pressure rating of any component in the system
Explanation: The MAWP of a refrigeration system is limited by the component with the lowest pressure rating in the high-pressure side of the system, as this is the weakest link that dictates the safe operating limit.
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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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