Unit 203 2/4 Multi-Choice Quiz: Classification of Materials

Which of these is a type of plastic?

• Thermoplastic

• Hardwood

• Composite

• Oxide

Which category of wood comes from fast-growing trees?

• Hardwood

• Softwood

• Manufactured board

• Elastomer

What is a composite made from?

• A single material

• Two or more chemically distinct materials

• A metal and a non-metal only

• Only plastics and metals

Which is an example of a ceramic material?

• Nylon

• Oxide

• Reinforced plastic

• Smart wire

Metals are classified into which two groups?

• Soft and hard

• Composite and non-composite

• Ferrous and non-ferrous

• Magnetic and non-magnetic

Natural fabrics are made from:

• Oil-based products

• Animal or plant fibres

• Synthetic polymers

• Composite ceramics

What describes a smart material?

• It is stronger than steel

• It reacts usefully to external stimuli

• It conducts electricity at all times

• It cannot be reshaped once moulded

Which smart material changes colour with temperature?

• Polymorph

• Thermocolour sheet

What does a phosphorescent sheet do?

• Glows in the dark after absorbing light

• Changes colour under pressure

• Becomes magnetic after heating

• Shrinks when cooled

What happens to Quantum Tunnelling Composite (QTC) under pressure?

• It becomes brittle

• It becomes a conductor

• It changes colour

• It glows in the dark