Mechanical Engineering Basics Quiz
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Questions and Answers

What is the term for the direct contact of one body with the surface of another causing forces?

  • Surface forces (correct)
  • Body tension
  • Surface interaction
  • Surface bonding
  • In which type of material are physical and mechanical properties the same throughout its volume?

  • Heterogeneous material
  • Isotropic material
  • Composite material
  • Homogeneous material (correct)
  • What is the term for the change in angle between two originally perpendicular line segments?

  • Torsional stress
  • Radial displacement
  • Shear strain (correct)
  • Angular deformation
  • What term describes the breakdown of a material and its permanent deformation upon a slight increase in stress above the elastic limit?

    <p>Yielding</p> Signup and view all the answers

    What occurs when an increase in load can be supported by a specimen after yielding, eventually reaching a maximum stress?

    <p>Strain hardening</p> Signup and view all the answers

    Which of the following factors are determined by the probability of material failure as it relates to the material’s quality and consistency of strength?

    <p>Resistance factors</p> Signup and view all the answers

    What is the characteristic of a material classified as ductile?

    <p>It can be subjected to large strains before fracturing</p> Signup and view all the answers

    What occurs when a metal is subjected to repeated cycles of stress or strain?

    <p>Fatigue</p> Signup and view all the answers

    What is the Modulus of Toughness related to on a stress-strain diagram?

    <p>Entire area under the stress-strain diagram</p> Signup and view all the answers

    What term describes a material's ability to deform permanently above its elastic limit?

    <p>Creep</p> Signup and view all the answers

    When does the Modulus of Resilience refer to the strain-energy density?

    <p>At the proportional limit</p> Signup and view all the answers

    What does the Ductility Factor represent?

    <p>$Ratio$ of $modulus$ $of$ $toughness$ $to$ $modulus$ $of$ $resilience$</p> Signup and view all the answers

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