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  • Question

  • The moment of inertia of a rectangular section of width B and depth D about an axis passing through C.G. and parallel to its width is


  • Options
  • A. The moment of inertia of a rectangular section of width B and depth D about an axis passing through
  • B. The moment of inertia of a rectangular section of width B and depth D about an axis passing through
  • C. The moment of inertia of a rectangular section of width B and depth D about an axis passing through
  • D. The moment of inertia of a rectangular section of width B and depth D about an axis passing through
  • E.

  • Correct Answer
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    • Theory of Structures problems

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    • 1. Slenderness ratio of a long column, is

    • Options
    • A. area of cross-section divided by radius of gyration
    • B. area of cross-section divided by least radius of gyration
    • C. radius of gyration divided by area of cross-section
    • D. length of column divided by least radius of gyration.
      • Discuss
    • 2. A masonry dam (density = 20, 000 N/m3) 6 m high, one metre wide at the top and 4 m wide at the base, has vertical water face. The minimum stress at the base of the dam when the reservoir is full, will be

    • Options
    • A. 75 N/m2
    • B. 750 N/m2
    • C. 7500 N/m2
    • D. 75000 N/m2
      • Discuss
    • 3. A steel plate d x b is sandwiched rigidly between two timber joists each D x B/2 in section. The moment of resistance of the beam for the same maximum permissible stress ? in timber and steel will be (where Young's modulus of steel is m times that of the timber).

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. Maximum principal stress theory for the failure of a material at elastic point, is known

    • Options
    • A. Guest's or Trecas' theory
    • B. St. Venant's theory
    • C. Rankine's theory
    • D. Haig's theory
    • E. Von Mises's theory.
      • Discuss
    • 5. The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is

    • Options
    • A. 2.75 cm
    • B. 3.00 cm
    • C. 3.50 cm
    • D. 4.25 cm
    • E. 5.0 cm
      • Discuss
    • 6. If normal stresses due to longitudinal and transverse loads on a bar are ?1 and ?2 respectively, the normal component of the stress on an inclined plane ?° to the longitudinal load, is

    • Options
    • A. ?1 sin ? x ?2 cos ?
    • B. ?1 sin ?2 + ?2 cos2 ?
    • C.
    • D.
      • Discuss
    • 7. The forces acting on the bar as shown in the given figure introduce

    • Options
    • A. compressive stress
    • B. tensile stress
    • C. shear stress
    • D. none of these.
      • Discuss
    • 8. The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is

    • Options
    • A.
    • B.
    • C. 1
    • D. 2
    • E. 3
      • Discuss
    • 9.  is the equation of Euler's crippling load if

    • Options
    • A. both at the ends are fixed
    • B. both the ends are hinged
    • C. one end is fixed and other end is free
    • D. one end is fixed and other end is hinged.
      • Discuss
    • 10. Maximum shear stress theory for the failure of a material at the elastic limit, is known

    • Options
    • A. Guest's or Trecas' theory
    • B. St. Venant's theory
    • C. Rankine's theory
    • D. Haig's theory
    • E. Von Mises's theory.
      • Discuss

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