What is a key consideration for aerospace materials due to high aerodynamic heating and -50°C temperatures?

• Weight reduction

• Manufacturability

• Temperature extremes

• Corrosion resistance

Which material is commonly used in high-load areas of aircraft?

• Titanium

• Aluminum alloys

• Fiber metal laminates

• Carbon fiber-reinforced polymers

What was the first engineered aerospace alloy developed during World War I?

• Duralumin

• Y alloy

• Titanium alloy

• Aluminum-lithium alloy

Which material is used in the Airbus A380 fuselage for its high strength-to-weight ratio?

• Ceramic matrix composites

• Kevlar composites

• GLARE

• Carbon nanotubes

What is a disadvantage of composite materials in aerospace applications?

• Low strength

• Difficult to repair

• Corrosion susceptibility

• High density

What is the main advantage of using fiber metal laminates (FMLs) in aircraft?

• High thermal conductivity

• Ease of manufacturing

• High impact and fatigue resistance

• Low cost

What is a future development in aerospace materials that involves materials repairing micro-cracks autonomously?

• Graphene

• Self-healing composites

• 3D-printed materials

• Carbon nanotubes

Which non-destructive testing method is used for detecting delamination in composites?

• Wöhler curves

• Ultrasonic inspection

• Eddy current

• Thermography

Which of the following best describes the benefits of using GLARE in aircraft structures?

• GLARE provides lightweight, high strength, and improved fatigue resistance for aircraft structures.
• GLARE offers poor thermal insulation for aircraft structures.
• GLARE is heavier but cheaper than traditional materials.
• GLARE is primarily used for aesthetic purposes in aircraft design.

What is the primary benefit of using carbon fiber-reinforced polymers in aircraft design?

• High thermal expansion

• Low cost

• High strength-to-weight ratio

• Ease of repair