Refrigeration & Air Conditioning Mechanic Red Seal · Question
When brazing copper refrigeration tubing, what minimum percentage of silver content is generally recommended for brazing alloys to ensure a strong, ductile, and leak-free joint that is compatible with most refrigerants?
For copper-to-copper joints in refrigeration systems, a phosphorus-copper eutectic alloy with at least 15% silver (e.g., BCuP-5) is commonly recommended. The si
Start free practice for Refrigeration & Air Conditioning Mechanic Red Seal
500 questions · no signup required · 40 free questions per day
Question: When brazing copper refrigeration tubing, what minimum percentage of silver content is generally recommended for brazing alloys to ensure a strong, ductile, and leak-free joint that is compatible with most refrigerants?
Answer options:
- 5% ✅ 15%
- 25%
- 30%
Correct answer: 15%
Explanation: For copper-to-copper joints in refrigeration systems, a phosphorus-copper eutectic alloy with at least 15% silver (e.g., BCuP-5) is commonly recommended. The silver content enhances flow characteristics, joint strength, and ductility, making it suitable for applications requiring leak-tight integrity against vibration and pressure, aligning with good practice for CSA B52 compliance.
Start free practice for Refrigeration & Air Conditioning Mechanic Red Seal
500 questions · no signup required · 40 free questions per day
More about Refrigeration & Air Conditioning Mechanic Red Seal
Related Questions
- 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
- Which type of electric motor requires a capacitor for starting and running, offering higher efficiency and bet
- When evacuating a refrigeration system, what is the recommended deep vacuum level, typically measured in micro
More for Refrigeration & Air Conditioning Mechanic Red Seal candidates
FAQs
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
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Refrigeration & Air Conditioning Mechanic Red Seal Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.