SP power point 1 2025

Which of the following is a non-metallic plumbing material?

• Steel

• Iron

• Plastic

• Alloys

Which of the following materials is considered a ferrous metal?

• Copper

• Iron

• Rubber

• Plastic

What are some of the main materials used in plumbing?

• Wood, plastic, glass

• Pipes, fittings, boilers, radiators

• Concrete, bricks, tiles

• Fabric, paper, rubber

Which of the following is a characteristic of ferrous metals?

• They are non-magnetic

• They do not corrode

• They contain iron and are magnetic

• They are resistant to rust

Which metals are gained straight from ore?

• Plastic, rubber, glass

• Iron, copper, aluminium, lead, zinc

• Wood, stone, clay

• Silver, gold, platinum

What happens to ferrous metals if they are not treated?

• They become stronger

• They corrode easily

• They change color

• They become non-magnetic

What is an alloy?

• A mixture of two or more metals

• A single pure metal

• A non-metallic compound

• A type of plastic

Which metals are combined to form brass?

• Copper and zinc

• Copper and tin

• Iron and carbon

• Copper, tin, and zinc

What is the composition of bronze?

• Copper and tin

• Copper and zinc

• Iron and carbon

• Copper, tin, and zinc

Which of the following is a non-ferrous metal?

• Copper

• Iron

• Steel

• Carbon