Engineering Material Quiz

What is the relationship between stress and strain?

• Stress is the ability of an object to do work

• Stress is how the load relates to its original cross sectional area

• Stress is the rate at which work is done

• Stress is the proportional change in length under axial load

What is the maximum carbon content in steel?

• 1%

• 3%

• 2%

• 4%

What is the structure of Austenite?

• BCC

• FCC

• HCP

• None of the above

What is the primary difference between steel and cast iron?

• Alloying elements

• Silicon content

• Carbon content

• Heat treatment processes

What is the structure of White Cast iron?

• Flakes

• None of the above

• Pearlite

• Cementite

What is the result of high silicon content in Grey cast iron?

• Soft and ductile iron

• Hard and brittle iron

• Strong and tough iron

• Weak and brittle iron

What is the testing method for materials that involves a tensometer?

• Tensile and compression test

• Hardness test

• Impact test

• Fatigue test

What are the specific benefits of composite materials?

• High strength to weight ratio

• Undesirable corrosion resistance

• Low strength to weight ratio

• Poor thermal resistance

What does Hooke's law state?

• Stress is proportional to strain

• Stress is inversely proportional to strain

• Stress is not related to strain

• Stress is equal to strain

What occurs when a material experiences plastic deformation?

• Elastic deformation

• No deformation

• Temporary deformation

• Permanent deformation