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Structural Design Specifications problems

  • 1. In the formula a + bk for the calculation of the net effective section of single angles in tension connected by one leg only, the value of k, is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 2. If the slenderness ratio of a column is more than 160, the compressive stress obtained by the secant formula is multiplied by a factor Civil Engineering Structural Design Specifications: If the slenderness ratio of a column is more than 160, the compressive stress obtained by the secantin which value of x is

  • Options
  • A. 0.9
  • B. 1.1
  • C. 1.2
  • D. 1.5
  • E. None of these.
    • Discuss
  • 3. The distance between, rivet line and the nearest edge of a joint not exposed to weather, is taken (where t is thickness in mm of the thinner outside plate).

  • Options
  • A. 6 t
  • B. 8 t
  • C. 10 t
  • D. 12 t
    • Discuss
  • 4. The minimum compressive strength on 15 cm cubes of M 30 grade concrete at 7 days, should be a minimum of

  • Options
  • A. 7 N/mm2
  • B. 10 N/mm2
  • C. 20 N/mm2
  • D. 30 N/mm2
    • Discuss
  • 5. If D is the overall thickness of the slab, the diameter of the reinforcing bars should not exceed

  • Options
  • A.
  • B.
  • C.
  • D.
  • E.
    • Discuss
  • 6. The minimum pitch i.e., the distance between centres of rivet holes is not less than

  • Options
  • A. 1.5 times the hole diameter
  • B. 2.0 times the hole diameter
  • C. 2.5 times the hole diameter
  • D. 3.0 times the hole diameter
  • E. None of these.
    • Discuss
  • 7. The value of fbct in the formula Civil Engineering Structural Design Specifications: The value of fbct in the formula for calculating the thickness of a Rectangular base, according to IS : 800-1982, is

  • Options
  • A. 1500 kg/cm2
  • B. 1650 kg/cm2
  • C. 1800kg/cm2
  • D. 1890 kg/cm2
    • Discuss
  • 8. For heavily reinforced concrete member, the nominal maximum size of the aggregates should be restricted to

  • Options
  • A. 5 mm less than the minimum clear distance between the main bars
  • B. 5 mm less than the minimum cover to the reinforcement
  • C. smaller of (a) and (b)
  • D. greater of (a) and (b)
    • Discuss
  • 9. The concrete is deemed not to comply with the strength requirements if the strength is less than the greater of

  • Options
  • A. characteristic strength minus 1.35 times the standard deviation
  • B. 0.8 times the characteristic strength
  • C. the average strength of all the samples is less than the characteristic strength plus times the standard deviation.
  • D. all the above.
    • Discuss
  • 10. In case of continuous beams, the distance between the points of zero moment, may be obtained as (where l is the effective span).

  • Options
  • A. 0.5 l
  • B. 0.6 l
  • C. 0.7 l
  • D. 0.8 l
    • Discuss

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