Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the purpose of subcooling in a refrigeration system?
Subcooling ensures that 100% liquid refrigerant reaches the expansion device, preventing flash gas that would reduce capacity.
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Question: What is the purpose of subcooling in a refrigeration system?
Answer options: ✅ Prevent flash gas in the liquid line before the expansion device
- Increase the compressor's volumetric efficiency
- Lower the evaporator temperature
- Reduce the condenser pressure
Correct answer: Prevent flash gas in the liquid line before the expansion device
Explanation: Subcooling ensures that 100% liquid refrigerant reaches the expansion device, preventing flash gas that would reduce capacity.
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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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