Which property measures a material's ability to withstand a pulling (tensile) force without breaking?

• Compressive strength

• Tensile strength

• Shear strength

• Hardness

What is the SI unit for tensile strength?

• Newton per metre (<katex latex="N/m"></katex>)

• Pascal (<katex latex="Pa"></katex>)

• Newton per square metre (<katex latex="N/m^2"></katex>)

• Joule (<katex latex="J"></katex>)

Which of the following best describes elasticity?

• The ability of a material to permanently deform under stress

• The ability of a material to return to its original shape after the stress is removed

• The ability to conduct heat

• The ability to resist corrosion

Plasticity is defined as:

• The ability to conduct electricity

• The ability to return to original shape after deformation

• The ability to undergo permanent deformation without breaking

• The ability to resist wear

Which material property is most important for making electrical wiring?

• High tensile strength

• High thermal conductivity

• High electrical conductivity

• High density

Which of the following materials is known for its high thermal conductivity?

• Copper

• Wood

• Rubber

• Glass

What is the main difference between fatigue and fracture in materials?

• Fatigue occurs under a single load, fracture under repeated loads

• Fatigue is caused by repeated loading, fracture is a sudden break

• Fatigue is a chemical process, fracture is a physical process

• Fatigue only occurs at high temperatures

Which of the following best describes fracture mechanics?

• The study of how materials conduct heat

• The study of how materials deform under tension

• The study of crack formation and propagation in materials

• The study of corrosion in metals

What is the formula for density?

• <katex latex="\text{Density} = \frac{\text{Volume}}{\text{Mass}}"></katex>

• <katex latex="\text{Density} = \frac{\text{Mass}}{\text{Volume}}"></katex>

• <katex latex="\text{Density} = \text{Mass} \times \text{Volume}"></katex>

• <katex latex="\text{Density} = \frac{\text{Weight}}{\text{Volume}}"></katex>

Which unit is commonly used for density in the SI system?

• <katex latex="\text{kg/m}^3"></katex>

• <katex latex="\text{g/cm}^2"></katex>

• <katex latex="\text{N/m}^2"></katex>

• <katex latex="\text{kg/m}^2"></katex>