Mechanical Properties of Materials Quiz
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Questions and Answers

Which portion of the stress-strain curve indicates the elastic limit where Hook's law may not be obeyed?

  • Portion C'D
  • Portion C'C
  • Portion BC
  • Portion AB (correct)
  • What term is used to describe the point at which the metal shows an appreciable strain even without further increase in stress, and the strain is not fully recoverable when the load is removed?

  • Point C'
  • Point D
  • Point B
  • Point C (correct)
  • What type of materials show very small elongation before fracturing?

  • Brittle materials (correct)
  • Elastic materials
  • Ductile materials
  • Composite materials
  • Where does the yielding commence on the stress-strain curve?

    <p>At point C</p> Signup and view all the answers

    Which portion of the stress-strain curve is about 100 times more strained compared to portion O to C?

    <p>Portion C'D</p> Signup and view all the answers

    What is the point termed where the bar begins to form a local neck in the stress-strain curve?

    <p>Point D</p> Signup and view all the answers

    Which portion of the stress-strain curve indicates the fracture or breaking point?

    <p>Portion DE</p> Signup and view all the answers

    Which materials exhibit a stress-strain curve similar to that of high carbon steel, as shown in Fig. 1.2?

    <p>All of the above materials</p> Signup and view all the answers

    Which point on the stress-strain curve is known as the ultimate tensile stress point?

    <p>Point D</p> Signup and view all the answers

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