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  • Question

  • In case of principal axes of a section


  • Options
  • A. sum of moment of inertia is zero
  • B. difference of moment inertia is zero
  • C. product of moment of inertia is zero
  • D. none of these.

  • Correct Answer
  • product of moment of inertia is zero 

    • Theory of Structures problems

    Search Results

    • 1. To determine the force in BD of the truss shown in the given figure a section is passed through BD, CD and CE, and the moments are taken about

    • Options
    • A. A joint
    • B. B joint
    • C. C joint
    • D. D joint.
      • Discuss
    • 2. For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is

    • Options
    • A. 0.303
    • B. 0.404
    • C. 0.505
    • D. 0.606
    • E. 0.707
      • Discuss
    • 3. In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
      • Discuss
    • 4. The ratio of the section modulus of a square section of side B and that of a circular section of diameter D, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The radius of gyration of a rectangular section (depth D, width B) from a centroidal axis parallel to the width is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. For calculating the permissible stress is the emprical formula, known as

    • Options
    • A. Straight line formula
    • B. Parabolic formula
    • C. Perry's formula
    • D. Rankine's formula.
      • Discuss
    • 7. The strain energy due to volumetric strain

    • Options
    • A. is directly proportional to the volume
    • B. is directly proportional to the square of exerted pressure
    • C. is inversely proportional to Bulk modulus
    • D. all the above.
      • Discuss
    • 8. At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by

    • Options
    • A. depth of the section
    • B. depth of the neutral axis
    • C. maximum tensile stress at the section
    • D. maximum compressive stress at the section
    • E. none of these.
      • Discuss
    • 9. The degree of indeterminacy of the frame in the given figure, is

    • Options
    • A. zero
    • B. 1
    • C. 2
    • D. 3
      • Discuss
    • 10. The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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