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Structural Design Specifications problems

  • 1. For calculating critical compression stress in bending Cs for sections symmetrical about the x-x axis, from the formula Civil Engineering Structural Design Specifications: For calculating critical compression stress in bending Cs for sections symmetrical, the value of G is taken

  • Options
  • A. 0.2 E
  • B. 0.3 E
  • C. 0.4 E
  • D. 0.5 E
    • Discuss
  • 2. The minimum diameter of longitudinal reinforcement of a column should not be less than

  • Options
  • A. 6 mm
  • B. 8 mm
  • C. 10 mm
  • D. 12 mm
  • E. 20 mm
    • Discuss
  • 3. The grade of reinforced concrete to be used in sea water or structures exposed to sea water should be

  • Options
  • A. M 10
  • B. M 15
  • C. M 20
  • D. M 30
    • Discuss
  • 4. If fck is the characteristic cube strength of concrete in N/mm2, the modulus of elasticity of structural concrete Ec = afck where the value of a, is

  • Options
  • A. 5900
  • B. 5800
  • C. 5700
  • D. 5600
  • E. 5500
    • Discuss
  • 5. Generally acceptable nominal size of aggregates for reinforced concrete, is

  • Options
  • A. 10 mm
  • B. 15 mm
  • C. 20 mm
  • D. 25 mm
  • E. 40 mm
    • Discuss
  • 6. The minimum horizontal distance between two parallel main reinforcing bars, is

  • Options
  • A. the diameter of the bar if their diameters are same
  • B. the diameter of the longer bar if their diameters are unequal
  • C. 5 mm more than nominal maximum size of the coarse aggragate
  • D. greatest value of the above.
    • Discuss
  • 7. Removal of props under

  • Options
  • A. slabs spanning upto 4.5 m is 7 days
  • B. slabs spanning more than 4.5 m is 14 days
  • C. beams spanning upto 6 m is 14 days
  • D. beams spanning more than 6 m is 21 days
  • E. all the above.
    • Discuss
  • 8. Pick up the correct statement for the web stiffeners.

  • Options
  • A. vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d
  • B. d is the distance between flange angles or the clear distance between flanges
  • C. for horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange
  • D. all the above.
    • Discuss
  • 9. Bending moment values for filler joists

  • Options
  • A. near middle of end span is +
  • B. at support next to end support is -
  • C. at middle of interior spans is +
  • D. at other interior supports is -
  • E. all the above.
    • Discuss
  • 10. For concreting of heavily reinforced sections without vibration, the workability of concrete should be

  • Options
  • A. very low
  • B. low
  • C. medium
  • D. high.
    • Discuss

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