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Civil Engineering :: RCC Structures Design

  1. In the zone of R.C.C. beam where shear stress is less than 5 kg/cm², nominal reinforcement is provided at a pitch of

  2. A.

     One-half lever arm of the section

    B.

     One-third lever arm of the section

    C.

     Lever arm of the section

    D.

     One and half lever arm of the section


  3. Distribution reinforcement in a simply supported slab, is provided to distribute

  4. A.

     Load

    B.

     Temperature stress

    C.

     Shrinkage stress

    D.

     All the above


  5. If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is

  6. A.

     40

    B.

     45

    C.

     50

    D.

     55


  7. The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as

  8. A.

     Freyssinet system

    B.

     Magnel-Blaton system

    C.

     C.C.L. standard system

    D.

     Lee-McCall system


  9. The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or

  10. A.

     12 bar diameters

    B.

     18 bar diameters

    C.

     24 bar diameters

    D.

     30 bar diameters


  11. Long and short spans of a two way slab are ly and lx and load on the slab acting on strips parallel to lx and ly be wx and wy respectively. According to Rankine Grashoff theory

  12. A.

     (wx/wy) = (ly/lx)

    B.

     (wx/wy) = (ly/lx)²

    C.

     (wx/wy) = (ly/lx)⁴

    D.

     None of these


  13. A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n?. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is

  14. A.

     bn (fc/2) (d - n/3)

    B.

     Atft (d - n/3)

    C.

     ½ n₁ (1 - n₁/3) cbd²

    D.

     All the above


  15. The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is

  16. A.

     30°

    B.

     40°

    C.

     45°

    D.

     All the above


  17. If ‘W’ is the load on a circular slab of radius ‘R’, the maximum radial moment at the centre of the slab, is

  18. A.

     WR²/16

    B.

     2WR²/16

    C.

     3WR²/16

    D.

     5WR²/16


  19. If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is

  20. A.

     WR²/16

    B.

     2WR²/16

    C.

     3WR²/16

    D.

     Zero