Stress and Material Properties Quiz
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Questions and Answers

Which material experiences greater stress under the given load?

  • The aluminum bar with a stress of 380 MPa
  • The aluminum bar with a stress of 480 MPa (correct)
  • The steel bar with a stress of 480 MPa
  • The steel bar with a stress of 380 MPa
  • What is the strain in the copper rod after it is strained to have a gage length of 5.77 cm?

  • 16.5%
  • 13.5%
  • 14.5% (correct)
  • 15.5%
  • How much will a steel wire 2.5 mm in diameter and 3 meters long be deformed when it supports a load of 4900 N?

  • 1.5 cm
  • 3.5 cm
  • 2.5 cm (correct)
  • 4.5 cm
  • Calculate the true tensile strength of a copper wire with a nominal breaking strength of 300 MPa and a reduction of area of 77%.

    <p>1300 MPa</p> Signup and view all the answers

    A copper wire has a nominal breaking strength of 300 MPa. What is the true tensile strength if the reduction of area is 77%?

    <p>290 MPa</p> Signup and view all the answers

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