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  • Question
  • Pick up the correct statement from the following i.


  • Options
  • A. Higher workability indicates unexpected increase in the moisture content
  • B. Higher workability indicates deficiency of sand
  • C. If the concrete mix is dry, the slump is zero
  • D. Concrete mix having zero slump, is unsuitable for high strength.
  • E. All the above.

  • Correct Answer
  • All the above. 


  • Concrete Technology problems


    Search Results


    • 1. Shrinkage in concrete can be reduced by using

    • Options
    • A. low water cement ratio
    • B. less cement in the concrete
    • C. proper concrete mix
    • D. presaturated aggregates
    • E. all the above.
    • Discuss
    • 2. Pick up the correct statement from the following:

    • Options
    • A. Segregation is necessary for a workable concrete
    • B. Consistency does not affect the workability of concrete
    • C. If the slump increases, workability decreases
    • D. If the concrete mix is dry, the slump is maximum
    • E. None of these.
    • Discuss
    • 3. Grading of sand causes great variation in

    • Options
    • A. workability of concrete
    • B. strength of concrete
    • C. durability of concrete
    • D. handing and placing of concrete
    • E. all the above.
    • Discuss
    • 4. Ordinary concrete is not used for concrete grade

    • Options
    • A. M 100
    • B. M 150
    • C. M 200
    • D. M 250
    • E. M 400
    • Discuss
    • 5. Pick up the correct statement from the following:

    • Options
    • A. According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight
    • B. According to the shape of the particles, concrete aggregates are classified as rounded irregular, angular and flaky
    • C. According to the surface texture of the particles, the concrete aggregates are classified as glassy, smooth, granular, rough, crystalline, honey combed and porous
    • D. All the above.
    • Discuss
    • 6. An aggregate is said to be flaky, if its least dimension is less than

    • Options
    • A. 2/3 mean dimension
    • B. 3/4 mean dimension
    • C. 3/5 mean dimension
    • D. 5/8 mean dimension
    • E. none of these.
    • Discuss
    • 7. The compaction of concrete, improves

    • Options
    • A. density
    • B. strength
    • C. durability
    • D. all the above.
    • Discuss
    • 8. The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is

    • Options
    • A. 30%
    • B. 40%
    • C. 50%
    • D. 60%.
    • Discuss
    • 9. Pick up the incorrect statement from the following:

    • Options
    • A. The bottom and top ends of slump mould are parallel to each other
    • B. The axis of the mould is perpendicular to the end faces
    • C. The internal surface of the mould is kept clean and free from set cement
    • D. The mould is in the form of a frustum of hexagonal pyramid
    • E. None of these.
    • Discuss
    • 10. C.R.R.I. charts are used to obtain a relatioship between strength of concrete and

    • Options
    • A. water cement ratio
    • B. workability
    • C. grading of aggregate
    • D. fineness modulus
    • E. none of these.
    • Discuss


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