Composite Materials Quiz

Why is it difficult to recycle many composite materials?

• They are made from a single material.

• They are too lightweight.

• They are made from distinctly different materials combined.

• They are biodegradable.

What is a characteristic of glass reinforced plastic (GRP)?

• Heavyweight

• Poor strength-to-weight ratio

• Lightweight and good strength-to-weight ratio

• Non-waterproof

What is the first step in the process of forming composite materials?

• Apply the first resin coat

• Prepare a mould or former

• Apply release agent

• Trim and finish the workpiece

What is a use of glass reinforced plastic (GRP)?

• Food packaging

• Boat hulls

• Clothing

• Paper products

What is a key characteristic of carbon-fibre reinforced plastic (CRP)?

• High compressive strength

• Very high strength-to-weight ratio

• Low tensile strength

• Poor resistance to chemicals

What is one of the uses of carbon-fibre reinforced plastic (CRP)?

• Everyday clothing

• Supercars and sports cars

• Kitchen utensils

• Office furniture

What is a benefit of Gore-Tex® fabric over other waterproof materials?

• It is heavier

• It is less breathable

• It allows moisture to escape

• It is more expensive

What is a characteristic of Gore-Tex® fabric?

• Non-breathable

• Waterproof and breathable

• Only used for musical instruments

• Non-flammable

What type of fibres is Kevlar® made from?

• Cotton

• Polyester

• Aramids

• Silk

Which of the following is a use for Kevlar®?

• Cooking utensils

• Personal armour

• Gardening tools

• Furniture