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  • Question

  • A circular slab subjected to external loading, deflects to form a


  • Options
  • A. semi-hemisphere
  • B. ellipsoid
  • C. parabolloid
  • D. none of these.

  • Correct Answer
  • parabolloid 

    • RCC Structures Design problems

    Search Results

    • 1. P is the prestressed force applied to the tendon of a rectangular prestressed beam whose area of cross section is A and sectional modulus is Z. The maximum stress f in the beam, subjected to a maximum bending moment M, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 2. In a combined footing for two columns carrying unequal loads, the maximum hogging bending moment occurs at

    • Options
    • A. less loaded column
    • B. more loaded column
    • C. a point equidistant from either column
    • D. a point of the maximum shear force
    • E. a point of zero shear force.
      • Discuss
    • 3. If the shear stress in a R.C.C. beam is

    • Options
    • 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.
      • Discuss
    • 4. The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is

    • Options
    • A. 30°
    • B. 40°
    • C. 45°
    • D. 60°
    • E. all the above.
      • Discuss
    • 5. 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

    • Options
    • A. 12 bar diameters
    • B. 18 bar diameters
    • C. 24 bar diameters
    • D. 30 bar diameters
    • E. 36 bar diameters
      • Discuss
    • 6. The Total pressure on the vertical face of a retaining wall of height h exerted by the retained earth weighing w per unit volume having an angle of surcharge ?°, is :

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. If Sb, is the average bond stress on a bar of diameter d subjected to maximum stress t, the length of the embedment l is given by

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 8. In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength

    • Options
    • A. 100 kg/cm2
    • B. 200 kg/cm2
    • C. 300 kg/cm2
    • D. 400 kg/cm2
    • E. 500 kg/cm2
      • Discuss
    • 9. The live load to be considered for an accessible roof, is

    • Options
    • A. Nil
    • B. 75 kg/m3
    • C. 150 kg/m2
    • D. 200 kg/cm2
      • Discuss
    • 10. The minimum clear cover for R.C.C. columns shall be

    • Options
    • 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
      • Discuss

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