Self Assessment form

Which of the following is a primary classification of engineering materials?

• A. Metals, Polymers, Ceramics
• C. Renewable, Non-renewable
• A. Metals, Polymers, Alloys
• B. Living, Non-living

Which of the following materials is classified as a polymer?

• • A. Steel

• • B. Polyethylene

• • C. Glass

• • D. Aluminum

Which mechanical property is defined as the ability of a material to resist deformation under tensile stress?

• • A. Ductility

• • B. Hardness

• • C. Strength

• • D. Toughness

What does the term 'ductility' refer to in materials science?

• • A. Ability to conduct electricity

• • B. Ability to withstand compressive forces

• • C. Ability to be stretched/drawn into a wire

• • D. Ability to resist corrosion

Which of the following is a non-ferrous material?

• • A. Iron

• • B. Steel

• • C. Copper

• • D. Cast Iron

What is a primary characteristic of ferrous materials?

• • A. They are typically non-magnetic

• • B. They do not contain iron

• • C. They are usually lighter than non-ferrous materials

• • D. They contain iron and are usually magnetic

Which factor is the most critical when selecting materials for a high-temperature application?

• • A. Color of the material

• • B. Thermal conductivity

• • C. Melting point

• • D. Electrical conductivity

Which of the following properties would be most important in selecting a material for electrical wiring?

• • A. High thermal conductivity

• • B. High electrical conductivity

• • C. High compressive strength

• • D. High hardness

Why are composite materials often used in engineering applications?

• • A. They are always cheaper than metals

• • B. They combine the best properties of their constituent materials

• • C. They are easier to recycle

• • D. They are naturally occurring materials

What is a primary reason for the use of engineering materials in modern technology?

• • A. They are aesthetically pleasing

• B. They provide specific mechanical, thermal, and electrical properties needed for various applications

• • C. They are always more cost-effective than other materials

• • D. They are the only materials available for use