unit 352 LO1

which metal below is a ferrous metal

• copper

• zinc

• stainless steel

• lead

which metal below is non-ferrous

• stainless steel

• cast iron

• mild steel

• lead

which of the materials below is a soft wood

• pine

• oak

• ash

• beech

which of the materials below is a hard wood

• pine

• ash

• cedar

• yew

which one of the materials below is a composite material

• cast iron

• bronze

• marine plywood

• teak

which of the metals below is an alloy

• brass

• lead

• iron

• zinc

what material would you use in an area that is subject to liquid contamination

• marine plywood

• mild steel

• hardwood

• softwood

what property would a material have to have to be used on the keel of a sailing yacht

• strength

• hardness

• toughness

• density

why is a propeller made from brass ?

• density

• elasticity

• strength

• resistance to corrosion

what 3 defects can wood suffer from

• distortion

• UV reaction

• fatigue

• colour changes