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WorksheetsComposite Materials Quiz
Total questions: 10
Worksheet time: 5mins
What is a composite material?
A material system composed of two or more physically distinct phases
A material system composed of only one phase
A material system composed of three or more physically distinct phases
A material system composed of four or more physically distinct phases
What are the functions of the matrix in reinforced plastics?
Support the fibers in place and protect the fibers against physical damage and the environment
Support the fibers in place and enhance the color of the fibers
Protect the fibers against physical damage and enhance the color of the fibers
Support the fibers in place and protect the fibers against chemical damage
What is an example of a metal matrix composite (MMC)?
Composite Military Helmets and Body Armor
Graphite Fiber
Aluminum-matrix Composite Brake Calipers
Glass Fibers
What type of fibers are the least expensive of all fibers?
Glass Fibers
Carbon Fiber
Ceramic Fiber
Graphite Fiber
What is the benefit of laminar composite?
Low density, honeycomb core
High tensile strength
Small weight, large bending stiffness
Balanced, in-plane stiffness
What does the rule of mixture represent in composite calculation?
Volume fraction of the reinforcing material
Physical properties of the reinforcing material
Length of the fibers
Type of the reinforcing material
What is the elastic modulus of the graphite–epoxy reinforced plastic composite with 20% graphite fibers?
140 GPa
120 GPa
160 GPa
180 GPa
What is the purpose of the matrix in composite materials?
Support the fibers and enhance the color of the fibers
Protect the fibers against chemical damage and enhance the color of the fibers
Support the fibers and protect the fibers against physical damage and the environment
Support the fibers and protect the fibers against chemical damage
What is the elastic modulus of the carbon–epoxy reinforced plastic composite with 30% carbon fibers?
160 GPa
180 GPa
200 GPa
140 GPa
Which type of composite material is composed of two or more physically distinct phases?
A material system composed of only one phase
A material system composed of three or more physically distinct phases
A material system composed of four or more physically distinct phases
A material system composed of two or more physically distinct phases
