What is one of the key characteristics of materials that affects their ability to be shaped without breaking?

• Density

• Ductility

• Electrical conductivity

• Wear resistance

Which of the following is a characteristic that describes a material's ability to return to its original shape after deformation?

• Elasticity

• Hardness

• Toughness

• Brittleness

What type of materials include metals, plastics, composites, and natural solids?

• Organic materials

• Synthetic materials

• Metallic and non-metallic materials

• Ceramic materials

Which characteristic is important for materials used in electrical applications?

• Malleability

• Electrical conductivity

• Toughness

• Plasticity

What is the term for a material's ability to resist wear and tear?

• Elasticity

• Wear resistance

• Ductility

• Plasticity

Which of the following is a thermoplastic polymer?

• Nylon

• Silicon

• Bakelite

• Urea formaldehyde

What is a typical form of supply for materials used in fabrications?

• Strip

• Sheet

• Castings

• Fabrications

Which type of corrosion involves the rate of change in material condition due to chemical reactions?

• Chemical corrosion

• Electrolytic corrosion

• Galvanic series

• Thermal corrosion

Which of the following is a characteristic of thermosetting polymers?

• They can be remolded.

• They include materials like silicon and bakelite.

• They are flexible at high temperatures.

• They are used in lubricants.

Which of the following is a factor affecting corrosion?

• Cladding

• Structural design

• Supply availability

• Physical appearance