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  • Question
  • An ideal ware house, is provided


  • Options
  • A. water proof masonry walls
  • B. water proof roof
  • C. few windows which remain generally closed
  • D. 15 cm thick concrete floor laid on a dry course of soling
  • E. all the above.

  • Correct Answer
  • all the above. 


  • Concrete Technology problems


    Search Results


    • 1. Sand requiring a high water cement ratio, belongs to

    • Options
    • A. Zone I
    • B. Zone II
    • C. Zone III
    • D. Zone IV.
    • Discuss
    • 2. Pick up the incorrect statement from the following:

    • Options
    • A. Tricalcium silicate (C3S) hydrates rapidly
    • B. Tricalcium silicate (C3S) generates more heat of hydration
    • C. Tricalcium silicate (C3S) develops early strength
    • D. Tricalcium silicate (C3S) has more resistance to sulphate attack
    • E. None of these.
    • Discuss
    • 3. Ordinary Portland cement is manufactured from

    • Options
    • A. lime stone and clay
    • B. gypsum and lime
    • C. pozzolana
    • D. lime, pozzolana and clay.
    • Discuss
    • 4. If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient of variation is

    • Options
    • A. 10%
    • B. 12.5%
    • C. 15%
    • D. 18.5 %
    • E. 20%
    • Discuss
    • 5. The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than

    • Options
    • A. 30 minutes
    • B. 40 minutes
    • C. 60 minutes
    • D. 75 minutes
    • E. 90 minutes.
    • Discuss
    • 6. Gypsum is added for

    • Options
    • A. colour
    • B. strength
    • C. controlling setting time
    • D. none of these.
    • Discuss
    • 7. If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is

    • Options
    • A. M 100
    • B. M 150
    • C. M 200
    • D. M 250
    • E. M 300
    • Discuss
    • 8. Pick up the incorrect statement from the following:

    • Options
    • A. Admixtures accelerate hydration
    • B. Admixtures make concrete water proof
    • C. Admixtures make concrete acid proof
    • D. Admixtures give high strength
    • E. None of these.
    • Discuss
    • 9. Non-uniform compaction may cause the concrete

    • Options
    • A. porous
    • B. non-homogeneous
    • C. reduced strength
    • D. all the above.
    • Discuss
    • 10. The entrained air in concrete

    • Options
    • A. increases workability
    • B. decreases workability
    • C. decreases resistance to weathering
    • D. increases strength
    • E. neither affects workability nor strength.
    • Discuss


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