Skip to main content

Plumber Red Seal · Question

Which material is used for gas piping and is recognizable by its black colour?

Black iron pipe is a commonly used material for gas piping installations due to its strength and resistance to natural gas. It is typically identified by its bl

Start free practice for Plumber Red Seal

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

Start Practice →

Question: Which material is used for gas piping and is recognizable by its black colour?

Answer options:

  • Galvanized iron ✅ Black iron
  • Copper
  • PVC

Correct answer: Black iron

Explanation: Black iron pipe is a commonly used material for gas piping installations due to its strength and resistance to natural gas. It is typically identified by its black colour.

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.