Strength of Materials: Stress and Pressure Vessels

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Questions and Answers

What is the term used to describe the change in physical size of a material due to an applied force?

  • Bearing stress
  • Deflection
  • Deformation
  • Strain (correct)

What is the region in the stress-strain diagram from O to P called?

  • Deformation range
  • Proportional limit
  • Elastic range (correct)
  • Plastic range

What is the mathematical term used to express the trend of deformation change among the material field?

  • Strain
  • Strain or reduced deformation (correct)
  • Deformation
  • Deflection

What is the term used to describe the magnitude to which a structural element bends under a load?

<p>Deflection (C)</p> Signup and view all the answers

What is the limit beyond which the material will no longer go back to its original shape when the load is removed?

<p>Elastic limit (D)</p> Signup and view all the answers

What is the term used to describe the contact pressure between separate bodies?

<p>Bearing stress (D)</p> Signup and view all the answers

What is the definition of stress in materials?

<p>The ratio of force over area (B)</p> Signup and view all the answers

What type of material undergoes a deformation when subjected to an external loading and regains its original shape when the loading is removed?

<p>Elastic material (B)</p> Signup and view all the answers

What is the primary function of thin-walled pressure vessels?

<p>To resist bursting due to internal pressure (A)</p> Signup and view all the answers

What is the unit of simple stress?

<p>Pa or N/m^2 (D)</p> Signup and view all the answers

What type of stress occurs when a force is applied parallel to the resisting area?

<p>Shear stress (D)</p> Signup and view all the answers

What is the formula for normal stress?

<p>𝜎= 𝐹 / 𝐴 (B)</p> Signup and view all the answers

What is the point at which a material has an appreciable elongation without an increase in load?

<p>Yield point (C)</p> Signup and view all the answers

Which of the following is also known as breaking strength?

<p>Rupture strength (D)</p> Signup and view all the answers

What is the work done on a unit volume of material as the force gradually increases from O to P?

<p>Modulus of resilience (C)</p> Signup and view all the answers

What type of stress is applied sideways on the material?

<p>Shear stress (C)</p> Signup and view all the answers

What is the ratio of the distance deformed to the height in a shear strain?

<p>Shear strain (C)</p> Signup and view all the answers

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