Refrigeration & Air Conditioning Mechanic Red Seal · Question
What is the typical composition of brazing alloy used for copper refrigeration tubing?
Silver-phos-copper (B-CuP series) alloys are commonly used for brazing copper to copper in refrigeration systems because they are self-fluxing on copper and pro
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Question: What is the typical composition of brazing alloy used for copper refrigeration tubing?
Answer options:
- Lead-tin alloy
- Aluminum-silicon alloy ✅ Silver-phos-copper alloy
- Nickel-chrome alloy
Correct answer: Silver-phos-copper alloy
Explanation: Silver-phos-copper (B-CuP series) alloys are commonly used for brazing copper to copper in refrigeration systems because they are self-fluxing on copper and provide strong, leak-tight joints.
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- 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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