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Civil Engineering :: Theory of Structures

Theory of Structures - Section 1
Theory of Structures - Section 2
Theory of Structures - Section 3
Theory of Structures - Section 4
Theory of Structures - Section-5

  1. Stress may be expressed in Newtons
    2. A.

    per millimetre square (N/mm2)
    B.

    per centimetre square (N/cm2)
    C.

    per metre square (N/m2)
    D.

    All of the above.

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  2. Principal planes are subjected to

    3. A.

    normal stresses only
    B.

    tangential stresses only
    C.

    normal stresses as well as tangential stresses
    D.

    none of these.

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  3. In plastic analysis, the shape factor for a circular section, is
    4. A.

    1.5
    B.

    1.6
    C.

    1.7
    D.

    1.75

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  4. Keeping the depth d constant, the width of a cantilever of length l of uniform strength loaded with a uniformly distributed load w varies from zero at the free end and
    5. A.

    \(\frac { 2w } { \sigma d^2} *I^2\) at the fixed end
    B.

    \(\frac { 3w } { \sigma d} *I^2\)at the fixed end
    C.

    \(\frac { 3w } { \sigma d^2} *I^2\)at the fixed end
    D.

    \(\frac { 5w } { \sigma d} *I^2\)at the fixed end

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  5. The total strain energy of a beam of length L, having moment of inertia of its section I, when subjected to a bending moment M, is

    6. A.

    \( \frac { M^2 } { EI } \)
    B.

    C.

    D.

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  6. A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is :

    7. A.

    4.0 mm
    B.

    4.5 mm
    C.

    5.0 mm
    D.
    5.5 mm
    E.

    6.0 mm

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  7. The force in BF of the truss shown in given figure, is

    8. A.

    4t tension
    B.

    4t compression
    C.

    4.5t tension
    D.

    4.5t compression
    E.

    zero.

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  8. The radius of gyration of a section of area A and least moment of inertia I about the centroidal axis, is
    9. A.

    \(\frac { A } { I} \)
    B.

    \(\frac { I} { A} \)
    C.

    \( \sqrt\frac { I } {A } \)
    D.

    \( \sqrt\frac { A } {I} \)

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  9. A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be
    10. A.

    \( \frac { wa} { 2 7} \)
    B.

    \( \frac { wa^2} { 27} \)
    C.

    \( \frac { w^2a} { \sqrt{ 27}} \)
    D.

    \( \frac { w^2a} { 9\sqrt{ 3}} \)

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  10. A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be
    11. A.

    \( \frac { wa} { 2 7} \)
    B.

    \( \frac { wa^2} { 27} \)
    C.

    \( \frac { w^2a} { \sqrt{ 27}} \)
    D.

    \( \frac { w^2a} { 9\sqrt{ 3}} \)

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