WorksheetsAircraft Materials Quiz
Total questions: 10
Worksheet time: 5mins
Which of the following is the main reason aluminium is used in aircraft?
It is easy to melt
It has a high strength-to-weight ratio
It is magnetic
It absorbs radar waves
What is a major drawback of aluminium-silicon (Al-Si) alloys?
They are too expensive
They corrode quickly
They are too soft
They can become brittle due to the silicon phase
Which material is mainly used in stealth fighter jets because it absorbs radar waves?
Aluminium alloy
Steel
Composite materials
Copper
Which aluminium alloy is known for high strength and is heat-treatable?
Al-Si
Al-Mg-Si
Al-Cu
Pure aluminium
Why is the black box made from titanium or stainless steel instead of aluminium?
To reduce weight
To lower cost
To improve radio signal
To survive fire, impact, and water damage
Which of the following is a mechanical property of materials?
Density
Heat capacity
Toughness
Electrical conductivity
What makes titanium useful in aircraft engines and high-stress areas?
It is magnetic
It has high corrosion resistance and high-temperature strength
It is cheaper than aluminium
It is transparent
What is the main advantage of using composite materials in military aircraft?
They are magnetic
They reflect radar signals
They absorb radar waves and are lightweight
They are easy to weld
Which part of the aircraft is most likely to use Al-Cu alloy?
Wheels
Wing spars and fuselage frames
Cockpit windows
Antennas
Which aluminium alloy contains magnesium and silicon and is commonly used for corrosion-resistant parts?
Al-Si
Al-Cu
Al-Mg-Si
Al-Zn
