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  • Question

  • If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia of the section, is


  • Options
  • A. If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia
  • B. If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia
  • C. IX + IY
  • D. If Ix and Iy are the moments of inertia of a section about X and Y axes, the polar moment of inertia

  • Correct Answer
  • IX + IY 

    • Theory of Structures problems

    Search Results

    • 1. A close coil helical spring when subjected to a moment M having its axis along the axis of the helix

    • Options
    • A. it is subjected to pure bending
    • B. its mean diameter will decrease
    • C. its number of coils will increase
    • D. all the above.
      • Discuss
    • 2. The force in AC of the truss shown in the given figure, is


    • Options
    • A. 5t tension
    • B. 4t tension
    • C. 4t compression
    • D. 5t compression
    • E. None of these.
      • Discuss
    • 3. Keeping breadth constant, depth of a cantilever of length l of uniform strength loaded with uniformly distributed load w varies from zero at the free end and

    • Options
    • A. at the fixed end
    • B.
    • C.
    • D. at the fixed end
      • Discuss
    • 4. The equation of a parabolic arch of span l and rise h, is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The deflection of a uniform circular bar of diameter d and length l, which extends by an amount e under a tensile pull W, when it carries the same load at its mid-span, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. Maximum strain theory for the failure of a material at the elastic limit, is known as

    • 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
    • 7. For beams breadth is constant,

    • Options
    • A. depth d ? M
    • B. depth d ? M
    • C. depth d ? 3 M
    • D. depth d ?
      • Discuss
    • 8. The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
      • Discuss
    • 9. A shaft rotating N.R.M. under a torque T, transmits a power

    • Options
    • A. Newton metres/sec
    • B. Newton metres/min
    • C. Newton metres/min
    • D. Newton metres/sec
      • Discuss
    • 10. Shear centre of a half circular section of radius r and of constant thickness, lies at a distance of x from the centre where x is

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

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