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Strength of Materials problems

  • 1. The neutral axis of the cross-section a beam is that axis at which the bending stress is

  • Options
  • A. zero
  • B. minimum
  • C. maximum
  • D. infinity
    • Discuss
  • 2. The stress at which the extension of the material takes place more quickly as compared to the increase in load, is called

  • Options
  • A. elastic limit
  • B. yield point
  • C. ultimate point
  • D. breaking point
    • Discuss
  • 3. Which of the following statement is correct?

  • Options
  • A. The energy stored in a body, when strained within elastic limit is known as strain energy.
  • B. The maximum strain energy which can be stored in a body is termed as proof resilience.
  • C. The proof resilience per unit volume of a material is known as modulus of resilience.
  • D. all of the above
    • Discuss
  • 4. The point of contraflexure is a point where

  • Options
  • A. shear force changes sign
  • B. bending moment changes sign
  • C. shear force is maximum
  • D. bending moment is maximum
    • Discuss
  • 5. The torque transmitted by a solid shaft of diameter (D) is (where ? = Maximum allowable shear stress)

  • Options
  • A. x ? x D3
  • B. x ? x D3
  • C. x ? x D3
  • D. x ? x D3
    • Discuss
  • 6. Euler's formula holds good only for

  • Options
  • A. short columns
  • B. long columns
  • C. both short and long columns
  • D. weak columns
    • Discuss
  • 7. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum normal stress will be

  • Options
  • A. 400 MPa
  • B. 500 MPa
  • C. 900 MPa
  • D. 1400 MPa
    • Discuss
  • 8. The maximum bending moment for the beam shown in the below figure, lies at a distance of __________ from the end B.
    Mechanical Engineering Strength of Materials: The maximum bending moment for the beam shown in the below figure, lies at a distance of __________

  • Options
  • A. l/2
  • B. l/3
  • C.
  • D.
    • Discuss
  • 9. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pressure (p). The maximum tangential stress at the inner surface of the shell is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 10. A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is

  • Options
  • A.
  • B.
  • C.
  • D. k1+k2
    • Discuss

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