Electrician Red Seal · Question
Which of the following wiring methods is NOT permitted for use in a building of non-combustible construction?
CEC Rule 12-504 restricts the use of NMD90 to buildings of combustible construction. In non-combustible buildings (e.g., concrete and steel), wiring must be enc
Start free practice for Electrician Red Seal
150 questions · no signup required · 40 free questions per day
Question: Which of the following wiring methods is NOT permitted for use in a building of non-combustible construction?
Answer options:
- Mineral-insulated cable (MI)
- Armoured cable (AC90) ✅ Non-metallic sheathed cable (NMD90)
- Rigid steel conduit
Correct answer: Non-metallic sheathed cable (NMD90)
Explanation: CEC Rule 12-504 restricts the use of NMD90 to buildings of combustible construction. In non-combustible buildings (e.g., concrete and steel), wiring must be enclosed in metallic raceways or be of a metal-sheathed type like AC90 or MI cable.
Start free practice for Electrician Red Seal
150 questions · no signup required · 40 free questions per day
More about Electrician Red Seal
Related Questions
- A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical
- During a renovation of a commercial kitchen, an electrician needs to replace an old single-phase, 240 V, 5 kW
- A commercial kitchen is being renovated, and several new 4 kW, 208 V, single-phase electric ovens are being in
- What is the minimum working space depth required in front of an electrical panel rated 200 A, 120/240 V, locat
- A Red Seal electrician is setting up temporary power for a construction site. The main temporary service is a
- A new industrial facility requires a 600 V, three-phase, 150 A feeder to supply a motor control centre. The co
More for Electrician Red Seal candidates
Practice tests
Question explanations
- A residential garage is to be wired with a 15 A, 120 V duplex receptacle. According to the Canadian Electrical
- During a renovation of a commercial kitchen, an electrician needs to replace an old single-phase, 240 V, 5 kW
- A commercial kitchen is being renovated, and several new 4 kW, 208 V, single-phase electric ovens are being in
- What is the minimum working space depth required in front of an electrical panel rated 200 A, 120/240 V, locat
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Electrician Red Seal Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.