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  • Question

  • A short column 20 cm x 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed


  • Options
  • A. 4120 kg
  • B. 41, 200 kg
  • C. 412, 000 kg
  • D. none of these.

  • Correct Answer
  • 41, 200 kg 

    • RCC Structures Design problems

    Search Results

    • 1. A prestressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 2. If R and T are rise and tread of a stair spanning horizontally, the steps are supported by a wall on one side and by a stringer beam on the other side, the steps are designed as beams of width

    • Options
    • A. R + T
    • B. T-R
    • C. R2 + T2
    • D. R-T
      • Discuss
    • 3. The reinforced concrete beam which has width 25 cm, lever arm 40 cm, shear force 6t/cm2, safe shear stress 5 kg/cm2 and B.M. 24 mt,

    • Options
    • A. is safe in shear
    • B. is unsafe in shear
    • C. is over safe in shear
    • D. needs redesigning.
      • Discuss
    • 4. If d and n are the effective depth and depth of the neutral axis respectively of a singly reinforced beam, the lever arm of the beam, is

    • Options
    • A. d
    • B. n
    • C.
    • D.
    • E.
      • Discuss
    • 5. The maximum area of tension reinforcement in beams shall not exceed

    • Options
    • A. 0.15%
    • B. 1.5%
    • C. 4%
    • D. 1%
      • Discuss
    • 6. Thickened part of a flat slab over its supporting column, is technically known as

    • Options
    • A. drop panel
    • B. capital
    • C. column head
    • D. none of these.
      • Discuss
    • 7. The minimum cube strength of concrete used for a prestressed member, is

    • Options
    • A. 50 kg/cm2
    • B. 150 kg/cm2
    • C. 250 kg/cm2
    • D. 350 kg/cm2
    • E. 400 kg/cm2
      • Discuss
    • 8. For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • E. 5
      • Discuss
    • 9. The thickness of base slab of a retaining wall generally provided, is

    • Options
    • A. one half of the width of the stem at the bottom
    • B. one-third of the width of the stem at the bottom
    • C. one fourth of the width of the steam at the bottom
    • D. width of the stem at the bottom
    • E. twice the width of the steam at the bottom.
      • Discuss
    • 10. A foundation rests on

    • Options
    • A. base of the foundation
    • B. subgrade
    • C. foundation soil
    • D. both (b) and (c)
      • Discuss

    Comments

    Avatar
    Saurabh
    Actually, permissible compressive stress in concrete = .4*FCK=40kg/cm^2. Permissible compressive stress in steel = *fy=1300 kg/cm^2. From safe load of column, P= *Asc+*Ast. 40*380+1300*20. = 41200kg
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