Which of the following is NOT a property of plumbing materials?

• Steel

• Wood

• Plastic

• Alloys

Which category of metals includes materials like steel and iron?

• Non-ferrous metals

• Alloys

• Ferrous metals

• Precious metals

What type of plumbing material is commonly used for its flexibility and low cost?

• Alloys

• Ferrous metals

• Non-ferrous metals

• Plastic

Which of the following materials is not mentioned as a pure metal used in plumbing?

• Copper

• Aluminium

• Zinc

• Silver

What is a characteristic of ferrous metals?

• They are magnetic and will corrode easily if not treated

• False

Which of the following is not a main material used in plumbing?

• Pipes

• Fittings

• Boilers

• Glass

What is an alloy in the context of plumbing materials?

• A) A pure metallic element used exclusively in plumbing.

• B) A mixture of two or more metals commonly used in the plumbing industry.

• C) A synthetic material used as a substitute for metals in plumbing.

• D) A certification standard for plumbing materials.

Which of the following is NOT a component of brass?

• A) Copper

• B) Zinc

• C) Tin

• D) Brass does not contain any of the above elements.

What are non-ferrous metals?

• A) Metals that contain iron.

• B) Metals that are lighter than iron.

• C) Any metal that does not contain iron.

• D) Metals that are not used in the plumbing industry.

Which metals make up the alloy bronze?

• A) Copper and zinc

• B) Iron and carbon

• C) Copper and tin

• D) Copper, tin, and zinc