WorksheetsWeek 15 - Recap Materials
Total questions: 10
Worksheet time: 5mins
Which of the following materials is a composite?
Aluminium
PVC
Carbon-fibre reinforced polymer
Glass
Which form of supply is best for producing long components with a constant cross-section (e.g. window frames)?
Casting
Forging
Extrusion
Sheet
Which property describes a material’s ability to be drawn into a wire?
Hardness
Toughness
Ductility
Brittleness
Which property allows a material to return to its original shape after a load is removed?
Plasticity
Toughness
Elasticity
Malleability
Which heat-treatment process is used to reduce brittleness after hardening?
Annealing
Normalising
Quenching
Tempering
Why are ceramic materials suitable for furnace linings?
They are ductile
They conduct electricity well
They can withstand very high temperatures
They are easy to machine
Which material would be most suitable for a transparent machine guard?
Mild steel
Glass
Polycarbonate
Cast iron
Which form of supply is commonly used for electrical cables?
Plate
Bar
Wire
Section
What is the main purpose of annealing a metal?
Increase hardness
Improve corrosion resistance
Soften the material and increase ductility
Increase brittleness
Which factor is MOST important when selecting a material for an outdoor application?
Colour
Ease of recycling
Corrosion resistance
Melting point
