WorksheetsAluminium & its Alloys Quiz
Total questions: 10
Worksheet time: 5mins
Which element, when alloyed with aluminium, increases its strength and hardness as it hardens with age?
Copper
Manganese
Silicon
Zinc
What is the primary reason pure aluminium is unsuitable for aircraft structural members?
It is not corrosion resistant.
It lacks strength and is too soft.
It is too heavy.
It is too expensive.
What is the density of aluminium compared to steel?
2.70g/cm3 for both aluminium and steel
7.87g/cm3 for both aluminium and steel
7.87g/cm3 for aluminium and 2.70g/cm3 for steel
2.70g/cm3 for aluminium and 7.87g/cm3 for steel
Which series of aluminium alloys is known for having better fatigue performance than the 7XXX series?
5XXX series
3XXX series
2XXX series
1XXX series
What is the main advantage of Alclad over sheet aluminium alloy?
Lower cost
Better electrical conductivity
Higher strength
Increased corrosion resistance
Which element, when alloyed with aluminium, provides a surface highly resistant to wear and corrosion?
Copper
Silicon
Manganese
Magnesium
What is the effect of adding zinc to aluminium?
Increases ductility
Decreases corrosion resistance
Increases brittleness
Decreases strength
Which aluminium alloy is known for its use in lightweight military bridges and aircraft?
7XXX series
3XXX series
2XXX series
5XXX series
What is the primary benefit of using aluminium alloys in aircraft?
High cost
High weight
High strength-to-weight ratio
Low thermal conductivity
Which element, when alloyed with aluminium, reduces the melting point making the alloy easier to cast?
Copper
Manganese
Silicon
Zinc
