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Civil Engineering :: RCC Structures Design

  1. Distribution of shear intensity over a rectangular section of a beam, follows:

  2. A.

     A circular curve

    B.

     A straight line

    C.

     A parabolic curve

    D.

     An elliptical curve

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  3. If the shear stress in a R.C.C. beam is

  4. A.

     Equal or less than 5 kg/cm², no shear reinforcement is provided

    B.

     Greater than 4 kg/cm², but less than 20 kg/cm², shear reinforcement is provided

    C.

     Greater than 20 kg/cm², the size of the section is changed

    D.

     All the above

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  5. In a pre-stressed member it is advisable to use

  6. A.

     Low strength concrete only

    B.

     High strength concrete only

    C.

     Low strength concrete but high tensile steel

    D.

     High strength concrete and high tensile steel

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  7. In a simply supported slab, alternate bars are curtailed at

  8. A.

     1/4th of the span

    B.

     1/5th of the span

    C.

     1/6th of the span

    D.

     1/7th of the span

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  9. If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is

  10. A.

     (L/2) (1 - 3/qmax)

    B.

     (L/3) (1 - 5/qmax)

    C.

     (L/2) (1 - 5/qmax)

    D.

     (L/2) (1 - 2/qmax)

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  11. Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of

  12. A.

     h/4

    B.

     h/3

    C.

     h/2

    D.

     2h/3

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  13. In a pre-stressed beam carrying an external load W with a bent tendon is having angle of inclination ? and pre-stressed load P. The net downward load at the centre is

  14. A.

     W - 2P cos θ

    B.

     W - P cos θ

    C.

     W - P sin θ

    D.

     W - 2P sin θ

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  15. If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by

  16. A.

     (5/6) (r/1 + r²) M

    B.

     (5/6) (r²/1 + r²) M

    C.

     (5/6) (r²/1 + r³) M

    D.

     (5/6) (r²/1 + r⁴) M

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  17. An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is

  18. A.

     Safe in shear

    B.

     Is safe with stirrups

    C.

     Is safe with stirrups and inclined members

    D.

     Needs revision of the section

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  19. The minimum clear cover for R.C.C. columns shall be

  20. A.

     Greater of 40 mm or diameter

    B.

     Smaller of 40 mm or diameter

    C.

     Greater of 25 mm or diameter

    D.

     Smaller of 25 mm or diameter

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