Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the maximum allowed working pressure for a refrigeration component designed for R-410A compared to R-22 systems?
R-410A operates at much higher pressures than R-22, requiring components specifically designed to withstand these increased pressures.
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Question: What is the maximum allowed working pressure for a refrigeration component designed for R-410A compared to R-22 systems?
Answer options:
- Lower, as R-410A operates at lower pressures ✅ Higher, as R-410A operates at significantly higher pressures
- Approximately the same, as both are high-pressure refrigerants
- Not applicable, as R-410A components are identical to R-22
Correct answer: Higher, as R-410A operates at significantly higher pressures
Explanation: R-410A operates at much higher pressures than R-22, requiring components specifically designed to withstand these increased pressures.
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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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