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  • A bar l metre long and having its area of cross-section A, is subjected to a gradually applied tensile load W. The strain energy stored in the bar is


  • Options
  • A. A bar l metre long and having its area of cross-section A, is subjected to a gradually applied tensi
  • B. A bar l metre long and having its area of cross-section A, is subjected to a gradually applied tensi
  • C. A bar l metre long and having its area of cross-section A, is subjected to a gradually applied tensi
  • D. A bar l metre long and having its area of cross-section A, is subjected to a gradually applied tensi

  • Correct Answer
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    • Theory of Structures problems

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    • 1. A rectangular column shown in the given figure carries a load P having eccentricities ex and ev along X and Y axes. The stress at any point (x, y) is

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    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is

    • Options
    • A. 1.0
    • B. 1.5
    • C. 2.0
    • D. 2.5
    • E. 3.0
      • Discuss
    • 3. For beams of uniform strength, if depth is constant,

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    • A. width b ? M
    • B. width b ? M
    • C. width b ? 3 M
    • D. width b ?
      • Discuss
    • 4. The equivalent length of a column of length L, having both the ends hinged, is

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    • A. 2L
    • B. L
    • C.
    • D.
      • Discuss
    • 5. Flat spiral springs

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    • A. consist of uniform thin strips
    • B. are supported at outer end
    • C. are wound by applying a torque
    • D. are used in clock-work mechanism
    • E. all the above.
      • Discuss
    • 6. Pick up the correct statement from the following:

    • Options
    • A. For a uniformly distributed load, the shear force varies linearly
    • B. For a uniformly distributed load, B.M. curve is a parabola
    • C. For a load varying linearly, the shear force curve is a parabola
    • D. For a load varying linearly, the B.M. curve is a cubic parabola
    • E. All the above.
      • Discuss
    • 7. A compound bar consists of two bars of equal length. Steel bar cross-section is 3500 mm2 and that of brass bar is 3000 mm2. These are subjected to a compressive load 100,000 N. If Eb = 0.2 MN/mm2 and Eb = 0.1 MN/mm2, the stresses developed are:

    • Options
    • A. ?b = 10 N/mm2, ?s = 20 N/mm2
    • B. ?b = 8 N/mm2, ?s = 16 N/mm2
    • C. ?b = 6 N/mm2, ?s = 12 N/mm2
    • D. ?b = 5 N/mm2, ?s = 10 N/mm2
      • Discuss
    • 8. The area of the core of a column of cross sectional area A, is

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    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. The maximum B.M. due to an isolated load in a three hinged parabolic arch, (span l, rise h) having one of its hinges at the crown, occurs on either side of the crown at a distance

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    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. The vertical reaction for the arch is

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

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