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  • Question
  • For the reinforced concrete member totally immersed in sea water, the normal cover provided for the reinforcing bars is further increased by


  • Options
  • A. 10 mm
  • B. 20 mm
  • C. 30 mm
  • D. 40 mm
  • E. 50 mm

  • Correct Answer
  • 40 mm 


  • Structural Design Specifications problems


    Search Results


    • 1. For rolled I-beams and channels, permissible tensile and compressive stresses does not exceed

    • Options
    • A. 1400 kg/cm2
    • B. 1500 kg/cm2
    • C. 1650 kg/cm2
    • D. 1800 kg/cm2
    • Discuss
    • 2. If the dimensions of a rectangular section of a short column are 15 cm x 20 cm, its unsupported length should be restricted to

    • Options
    • A. 9.0 m
    • B. 10.0 m
    • C. 11.0 m
    • D. 12.0 m
    • Discuss
    • 3. For the plain reinforcing bars in compression, the permissible design bond stress in tension, is increased by

    • Options
    • A. 10%
    • B. 15%
    • C. 20%
    • D. 25%
    • E. 30%
    • Discuss
    • 4. Pick up the correct precaution while spilicing the reinforcing bars

    • Options
    • A. These are provided away from the sections of maximum stress
    • B. These are staggered
    • C. These are provided if the B.M. is more than 50% of M.R.
    • D. Not more than half the bars are spliced at a section
    • E. All the above.
    • Discuss
    • 5. A continuous beam shall be deemed to be a deep beam if the ratio of its effective span to overall depth, is

    • Options
    • A. 2.0
    • B. 2.5
    • C. less than 2
    • D. less than 2.5
    • Discuss
    • 6. The test strength of the sample is taken as the average of the strength of

    • Options
    • A. 2 specimens
    • B. 3 specimens
    • C. 4 specimens
    • D. 5 specimens
    • Discuss
    • 7. The reduced level of third floor of a building near a column is 205.350 m. The reduced levels of the undersides of four beams supporting the fourth floor framing into the column mutually perpendicular are 208.350 m, 208.450 m, 208.500 m and 208.550 m. The supported length of the column is

    • Options
    • A. 3.000 m
    • B. 3.100 m
    • C. 3.150 m
    • D. 3.200 m
    • Discuss
    • 8. Which one of the following linings is suitable for shield driven tunnels particularly in the subaqueous regions :

    • Options
    • A. Brick lining
    • B. stone lining
    • C. timber line
    • D. cast iron lining
    • E. concrete lining.
    • Discuss
    • 9. Pick up the explosive used for tunnelling in soft rocks from the following :

    • Options
    • A. blasting gelatine
    • B. special gelatine
    • C. ammonia dynamite
    • D. semi-gelatine.
    • Discuss
    • 10. Which one of the following statements is not correct in respect of setting of an inclined tunnel:

    • Options
    • A. Reference points are constructed at every 300 m.
    • B. The alignment is fixed from upper/lower apex point.
    • C. The level of the invert at the heading is marked by a tape.
    • D. Reference points are constructed on the roof of tunnels
    • E. None the above.
    • Discuss


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