Refrigeration & Air Conditioning Mechanic Red Seal · Question
A thermostatic expansion valve (TXV) maintains a constant:
The TXV regulates refrigerant flow into the evaporator, maintaining a constant superheat at the evaporator outlet to ensure no liquid returns to the compressor.
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Question: A thermostatic expansion valve (TXV) maintains a constant:
Answer options: ✅ Superheat at the evaporator outlet.
- Pressure in the evaporator.
- Temperature in the refrigerated space.
- Liquid level in the receiver.
Correct answer: Superheat at the evaporator outlet.
Explanation: The TXV regulates refrigerant flow into the evaporator, maintaining a constant superheat at the evaporator outlet to ensure no liquid returns to the compressor.
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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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