Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the function of a 'check valve' in a refrigeration system?
A check valve allows fluid to flow in only one direction, preventing backflow in parts of the refrigeration circuit.
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Question: What is the function of a 'check valve' in a refrigeration system?
Answer options: ✅ Control refrigerant flow direction
- Regulate system pressure
- Filter refrigerant
- Separate oil from refrigerant
Correct answer: Control refrigerant flow direction
Explanation: A check valve allows fluid to flow in only one direction, preventing backflow in parts of the refrigeration circuit.
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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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