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Theory of Structures problems

  • 1. If the normal stresses due to longitudinal and transverse loads on a bar are ?1 and ?2 respectively, the tangential component of the stress on an inclined plane through ?°, the longitudinal load is

  • Options
  • A. ?1 sin ? + ?2 cos ?
  • B. ?1 sin ?2 + ?2 cos2 ?
  • C.
  • D.
    • Discuss
  • 2. A compound truss may be formed by connecting two simple rigid frames, by

  • Options
  • A. two bars
  • B. three bars
  • C. three parallel bars
  • D. three bars intersecting at a point.
    • Discuss
  • 3. 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
  • 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. 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
  • 6. 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
  • 7. 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
    Civil Engineering Theory of Structures: To determine the force in BD of the truss shown in the given figure a section is passed throu

  • Options
  • A. A joint
  • B. B joint
  • C. C joint
  • D. D joint.
    • Discuss
  • 8. 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.
    • Discuss
  • 9. For calculating the permissible stress Civil Engineering Theory of Structures: 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
  • 10. 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

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