Materials and Their Properties Quiz

Which of the following statements is true about ferrous metals?

• Ferrous metals do not contain iron.

• Ferrous metals contain iron.

• Ferrous metals are always non-magnetic.

• Ferrous metals are only used for jewelry.

What is the main difference between thermoplastics and thermosetting polymers?

• Thermoplastics can only be heated and shaped once.

• Thermosetting polymers can be heated and shaped repeatedly.

• Thermoplastics can be heated and shaped repeatedly, while thermosetting polymers can only be heated and shaped once.

• Both can be recycled easily.

Which process involves heating and then slowly cooling metal to remove stress and make it softer?

• Tempering

• Case hardening

• Annealing

• Hardening

What is the main source of natural timber?

• Factories

• Trees

• Mines

• Oceans

Which of the following is a property of paper?

• Made from plastic

• Made from wood pulp

• Made from metal

• Made from glass

Which of the following is a non-ferrous metal?

• Mild steel

• Cast iron

• Aluminium

• Stainless steel

What is the purpose of seasoning hardwoods and softwoods?

• To make them heavier

• To prevent shrinkage by removing moisture

• To change their color

• To make them waterproof

Which manufactured board is made from recycled wood waste and additives?

• Oak

• MDF (Medium Density Fibreboard)

• Beech

• Scots pine

What is the melting point of brass, a non-ferrous metal?

• 660°C

• 900°C

• 1100°C

• 1200°C

Which of the following is a common thermosetting polymer?

• Polyethylene

• Nylon

• Melamine

• Polystyrene