Composite Materials Quiz

What are composite materials?

• Materials made from two or more distinct constituent materials

• Materials made from a single material

• Materials made from metals only

• Materials made from natural fibers

What is the dispersed phase in most composites?

• The material that holds everything together

• The material that forms a bond with the matrix

• The material that provides desirable properties

• The material that protects the dispersed phase

Which type of composite materials are widely used in engineering applications?

• Fiber-reinforced, polymer-matrix composites

• Ceramic-matrix composites

• Metal-matrix composites

• Particle-reinforced composites

What is the most common matrix material in fiber-reinforced, polymer-matrix composites?

• Polymer

• Metal

• Ceramic

• Epoxy

What is the purpose of stacking multiple layers with different fiber orientations in fiber-reinforced materials?

• To achieve strength and stiffness in multiple directions

• To increase the weight of the material

• To make the material more brittle

• To reduce the cost of production

Which type of weave pattern is more flexible and conforms easily to curved surfaces?

• Plain weave

• Basket weave

• Satin weave

• Twill weave

What is the wet layup method used for in composite manufacturing?

• Bonding pre-impregnated fibers to a mold

• Injecting resin into a mold with short fibers

• Winding unidirectional tape around a mandrel

• Applying resin to fiber layers in a mold

What is the main advantage of fiber-reinforced composites over traditional materials?

• High specific strength and specific stiffness

• Good corrosion resistance

• Low cost of production

• Excellent internal damping properties

Which type of fiber-reinforced composites are commonly used in aerospace and automotive industries?

• Metal Reinforced Polymers

• Kevlar Reinforced Polymers

• Glass Reinforced Polymers

• Carbon Fiber Reinforced Polymers

What is the main drawback of fiber-reinforced composites?

• Difficult integration into larger assemblies

• High cost

• Low strength

• Poor corrosion resistance