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- Question
An aggregate is said to be flaky if its least dimension is less than
Options- A. 1/5th of mean dimension
- B. 2/5th of mean dimension
- C. 3/5th of mean dimension
- D. 4/5th of mean dimension
- E. none of these.
- Correct Answer
- 3/5th of mean dimension
- 1. Transport of concrete by pumps, is done for a distance of
Options- A. 100 m
- B. 200 m
- C. 300 m
- D. 400 m
- E. none of these. Discuss
- 2. The standard sand now a days used in India, is obtained from
Options- A. Jaipur (Rajasthan)
- B. Jullundur (Punjab)
- C. Hyderabad (Andhra Pradesh)
- D. Ennore (Madras)
- E. Cuttuck (Orissa). Discuss
- 3. Under normal conditions using an ordinary cement, the period of removal of the form work, is :
Options- A. 7 days for beam soffits
- B. 14 days for bottom slabs of spans 4.6 m and more
- C. 21 days for bottom beams over 6 m spans
- D. 2 days for vertical sides of columns
- E. all the above. Discuss
- 4. The rock which is not calcareous, is :
Options- A. lime stone
- B. macl
- C. chalk
- D. laterite
- E. none of these. Discuss
- 5. M10 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
- 6. Vicat's apparatus is used for
Options- A. fineness test
- B. consistency test
- C. setting time test
- D. soundness test
- E. compressive strength test. Discuss
- 7. To ensure constant moisture content in aggregates
Options- A. area of each aggregate pile should be large
- B. height of each aggregate pile should not exceed 1.50 m
- C. aggregate pile should be left for 24 hours before aggregates are used
- D. conical heaps of aggregates should be avoided to prevent moisture variation
- E. all the above. Discuss
- 8. While compacting the concrete by a mechanical vibrator, the slump should not exceed
Options- A. 2.5 cm
- B. 5.0 cm
- C. 7.5 cm
- D. 10 cm
- E. 15 cm Discuss
- 9. Construction joints are generally provided in concrete
Options- A. roads
- B. retaining walls
- C. lining of canals
- D. lining of tunnels
- E. all the above. Discuss
- 10. For quality control of Portland cement, the test essentially done is
Options- A. setting time
- B. soundness
- C. tensile strength
- D. consistency
- E. all the above. Discuss
Concrete Technology problems
Search Results
Correct Answer: 400 m
Correct Answer: Ennore (Madras)
Correct Answer: all the above.
Correct Answer: laterite
Correct Answer: 1 : 3 : 6 mix
Correct Answer: consistency test
Correct Answer: all the above.
Correct Answer: 5.0 cm
Correct Answer: all the above.
Correct Answer: all the above.
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