Discussion
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- Question
For given water content, workability decreases if the concrete aggregates contain an excess of
Options- A. thin particles
- B. flat particles
- C. elongated particles
- D. flaky paticles
- E. all the above.
- Correct Answer
- all the above.
- 1. The risk of segregation is more for
Options- A. wetter mix
- B. larger proportion of maximum size aggregate
- C. coarser grading
- D. all the above. Discuss
- 2. The ratio of the length to breadth of a wooden float, is
Options- A. 4.5
- B. 5.5
- C. 6.5
- D. 7.5
- E. 8.5 Discuss
- 3. The mixture of different ingredients of cement, is burnt at
Options- A. 1000°C
- B. 1200°C
- C. 1400°C
- D. 1600°C
- E. 1800°C Discuss
- 4. If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is
Options- A. 7.30
- B. 7.35
- C. 7.40
- D. 7.45
- E. none of these. Discuss
- 5. Internal friction between the ingredients of concrete, is decreased by using
Options- A. less water
- B. fine aggregates
- C. rich mix
- D. more water and coarse aggregates
- E. none of these. Discuss
- 6. M 150 grade of concrete approximates
Options- A. 1 : 3 : 6 mix
- B. 1 : 1 :2 mix
- C. 1 : 2 : 4 mix
- D. 1 : 1.5 : 3 mix
- E. none of these. Discuss
- 7. For ensuring quality of concrete, use
Options- A. single sized aggegates
- B. two sized aggregate
- C. graded aggregates
- D. coarse aggregates. Discuss
- 8. Proper proportioning of concrete, ensures
Options- A. desired strength and workability
- B. desired durability
- C. water tightness of the structure
- D. resistance to water
- E. all the above. Discuss
- 9. Pick up the correct statement from the following:
Options- A. The weight of ingredients of concrete mix, is taken in kilograms
- B. Water and aggregates are measured in litres
- C. The finished concrete is measured in cubic metres
- D. 20 bags of cement make one tonne
- E. All the above. Discuss
- 10. Workability improved by adding
Options- A. air-entraining agent
- B. foaming agent
- C. oily-agent
- D. aluminium compound
- E. all the above. Discuss
Concrete Technology problems
Search Results
Correct Answer: all the above.
Correct Answer: 7.5
Correct Answer: 1400°C
Correct Answer: 7.40
Correct Answer: more water and coarse aggregates
Correct Answer: 1 : 1 :2 mix
Correct Answer: graded aggregates
Correct Answer: all the above.
Correct Answer: All the above.
Correct Answer: all the above.
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