Quiz(CO4) - Engineering Materials

Which of the following is not a phase of matter?

• Solid

• Liquid

• Gas

• Plasma

The main difference between the solid and liquid phases of matter is:

• The color of the substance

• The arrangement of particles

• The chemical composition

• The electrical conductivity

Which of the following is a mechanical property of materials?

• Conductivity

• Density

• Elasticity

• Transparency

The stress-strain relationship in a material is used to determine:

• Thermal expansion

• Electrical resistance

• Mechanical strength

• Optical properties

Which material is widely used in electrical wiring due to its high electrical conductivity?

• Iron

• Copper

• Plastic

• Glass

Which of the following materials is a good electrical insulator?

• Steel

• Silicon

• Plastic

• Aluminum

Which of the following is a lightweight metal commonly used in the aerospace industry?

• Aluminum

• Iron

• Copper

• Steel

Composites are materials made from:

• A single type of metal

• A mixture of two or more different materials with distinct properties

• Pure elements only

• Gases under high pressure

Which of the following is considered a fluid material?

• Air

• Glass

• Copper

• Plastic

Water is a critical fluid material due to its:

• High electrical resistance

• Excellent mechanical strength

• Ability to dissolve many substances (universal solvent)

• High compressibility