Composites #2

Which type of composite material is known for its high strength-to-weight ratio?

• Metal matrix composite

• Ceramic matrix composite

• Polymer matrix composite

• Carbon fiber-reinforced composite

Which of the following factors can affect the mechanical properties of a composite material?

• Fiber orientation

• Matrix composition

• Fiber volume fraction

• All of the above

Which manufacturing process involves impregnating dry fibers with resin and then applying heat and pressure to cure the composite?

• Filament winding

• Pultrusion

• Resin infusion

• Pre-preg lay-up

Which property of composite materials makes them highly resistant to corrosion?

• High thermal conductivity

• Low coefficient of friction

• High chemical stability

• Low thermal expansion

Which test is commonly used to determine the interlaminar shear strength of composite materials?

• Tensile test

• Flexural test

• Compression test

• Iosipescu shear test

Which type of reinforcement is commonly used in fiber-reinforced polymer (FRP) composites?

• Glass fibers

• Aramid fibers

• Carbon fibers

• All of the above

Which manufacturing process involves pulling continuous fibers through a resin bath and then wrapping them around a rotating mandrel?

• Resin transfer molding

• Autoclave processing

• Filament winding

• Hand lay-up

Which type of defect in composite materials is characterized by irregularly shaped, localized regions of resin-rich areas?

• Voids

• Porosity

• Resin pockets

• Resin-rich regions

Which joining technique for composite materials involves using specially designed fasteners to mechanically connect components?

• Adhesive bonding

• Riveting

• Bolting

• Soldering

Which property of composite materials makes them suitable for electromagnetic shielding applications?

• High electrical conductivity

• Low thermal conductivity

• High impact resistance

• Low density