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- Question
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%.
- Correct Answer
- 50%
- 1. The compaction of concrete, improves
Options- A. density
- B. strength
- C. durability
- D. all the above. Discuss
- 2. 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
- 3. 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. Discuss
- 4. 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
- 5. 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
- 6. 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
- 7. 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
- 8. Proper batching ensures
Options- A. economy
- B. durability
- C. workability
- D. strength
- E. all the above. Discuss
- 9. If the depth of moist sand in a cylinder is 15 cm and the depth of the sand when fully inundated with water is 12 cm, the bulking of the moist sand, is
Options- A. 10%
- B. 12%
- C. 15%
- D. 20%
- E. 25%. Discuss
- 10. Water required per bag of cement, is
Options- A. 7 kg
- B. 14 kg
- C. 21 kg
- D. 28 kg
- E. 35 kg Discuss
Concrete Technology problems
Search Results
Correct Answer: all the above.
Correct Answer: 3/5 mean dimension
Correct Answer: All the above.
Correct Answer: all the above.
Correct Answer: None of these.
Correct Answer: The mould is in the form of a frustum of hexagonal pyramid
Correct Answer: water cement ratio
Correct Answer: all the above.
Correct Answer: 25%.
Correct Answer: 35 kg
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