Refrigeration & Air Conditioning Mechanic Red Seal · Question
A technician is commissioned to replace a compressor motor. What is a critical safety consideration when preparing to disconnect electrical wiring, according to Canadian electrical codes and field practice?
Before working on any electrical component, it is imperative to follow lockout/tagout procedures. This ensures the power source is de-energized, locked, and tag
Start free practice for Refrigeration & Air Conditioning Mechanic Red Seal
500 questions · no signup required · 40 free questions per day
Question: A technician is commissioned to replace a compressor motor. What is a critical safety consideration when preparing to disconnect electrical wiring, according to Canadian electrical codes and field practice?
Answer options:
- Ensure the system is completely depressurized to 0 psi (0 kPa)
- Confirm all system fan motors are running to prevent residual current ✅ Verify the electrical disconnect has been locked out and tagged out
- Check compressor oil level before beginning work
Correct answer: Verify the electrical disconnect has been locked out and tagged out
Explanation: Before working on any electrical component, it is imperative to follow lockout/tagout procedures. This ensures the power source is de-energized, locked, and tagged to prevent accidental energization, safeguarding personnel.
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.