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Civil Engineering :: Structural Analysis

  1. For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal
    (i) Of a stiffness matrix must be positive
    (ii) Of a stiffness matrix must be negative
    (iii) Of a flexibility matrix must be positive
    (iv) Of a flexibility matrix must be negative
    The correct answer is

  2. A.

     (i) and (iii)

    B.

     (ii) and (iii)

    C.

     (i) and (iv)

    D.

     (ii) and (iv)

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  3. Study the following statements.
    i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy.
    ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy.
    iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy.
    iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy.
    The correct answer is

  4. A.

     (i) and (iii)

    B.

     (ii) and (iii)

    C.

     (i) and (iv)

    D.

     (ii) and (iv)

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  5. Muller Breslau’s principle for obtaining influence lines is applicable to
    i) trusses
    ii) statically determinate beams and frames
    iii) statically indeterminate structures, the material of which is elastic and follows Hooke’s law
    iv) any statically indeterminate structure
    The correct answer is

  6. A.

     (i), (ii) and (iii)

    B.

     (i), (ii) and (iv)

    C.

     (i) and (ii)

    D.

     only (i)

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  7. In the slope deflection equations, the deformations are considered to be caused by
    i) bending moment
    ii) shear force
    iii) axial force
    The correct answer is

  8. A.

     only (i)

    B.

     (i)and(ii)

    C.

     (ii) and (iii)

    D.

     (i), (ii) and (iii)

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  9. Select the correct statement

  10. A.

     Flexibility matrix is a square symmetrical matrix

    B.

     Stiffness matrix is a square symmetrical matrix

    C.

     both (a) and (b)

    D.

     none of the above

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  11. A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre ?

  12. A.

     5 mm

    B.

     0.5 mm

    C.

     0.05 mm

    D.

     0.005mm

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  13. The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in

  14. A.

     Vertical direction

    B.

     Horizontal direction

    C.

     Inclined direction

    D.

     The direction in which the deflection is required

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  15. Independent displacement components at each joint of a rigid-jointed plane frame are

  16. A.

     three linear movements

    B.

     two linear movements and one rotation

    C.

     one linear movement and two rotations

    D.

     three rotations

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  17. The thickness of the rectangular plate for the cap or base of a solid round steel columns, is calculated from the formula
    t = √[(9W/16 fbct) × D/(D -d)] where ‘d’ is

  18. A.

     The reduced diameter of the column

    B.

     The dimension of the base

    C.

     The diameter of the base

    D.

     The diameter of the top

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  19. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

  20. A.

     zero length

    B.

     infinite length

    C.

     zero moment of inertia

    D.

     none of the above

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