Skip to main content

Plumber Red Seal · Question

A client requests the installation of a kitchen sink with a garbage disposal unit. The National Plumbing Code requires a specific type of trap for such installations to maintain a proper water seal. What type of trap is typically required for a kitchen sink with a garbage disposal unit?

The National Plumbing Code of Canada mandates the use of a P-trap for fixtures like kitchen sinks with garbage disposals to maintain a proper water seal and pre

Start free practice for Plumber Red Seal

177 questions · no signup required · 40 free questions per day

Start Practice →

Question: A client requests the installation of a kitchen sink with a garbage disposal unit. The National Plumbing Code requires a specific type of trap for such installations to maintain a proper water seal. What type of trap is typically required for a kitchen sink with a garbage disposal unit?

Answer options:

  • An S-trap
  • A running trap ✅ A P-trap
  • A drum trap

Correct answer: A P-trap

Explanation: The National Plumbing Code of Canada mandates the use of a P-trap for fixtures like kitchen sinks with garbage disposals to maintain a proper water seal and prevent sewer gases from entering the building. S-traps lead to siphoning, running traps are less common for fixtures, and drum traps are generally not permitted for sinks.

Start free practice for Plumber Red Seal

177 questions · no signup required · 40 free questions per day

Start Practice →

More about Plumber Red Seal

Related Questions

More for Plumber Red Seal candidates

Ready to practice?

Free, no signup required. Build a wrong-question list as you go.

Start Free Plumber Red Seal Practice →

Related courses

Other Canadian certifications candidates often prepare for alongside this one.