Water Supply Engineering problems
- 1. Rapid gravity filter can only remove turbidity of water upto
Options- A. 15 to 25 gm/litre
- B. 25 to 30 gm/litre
- C. 30 to 35 cm/litre
- D. 35 to 40 gm/litre
- E. 50 gm/litre. Discuss
Correct Answer: 35 to 40 gm/litre
- 2. One degree of hardness of water means a content of salts of
Options- A. 10.25 mg/litre
- B. 12.25 mg/litre
- C. 14.25 mg/litre
- D. 16.25 mg/litre.
- E. 20 mg/litre. Discuss
Correct Answer: 14.25 mg/litre
- 3. Mostly used coagulant, is
Options- A. chlorine
- B. alum
- C. lime
- D. bleaching powder. Discuss
Correct Answer: alum
- 4. If p is total internal pressure, d is diameter of pressure conduit and t is thickness of conduit, the Hoop's stress is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 5. Hard water contains
Options- A. calcium
- B. magnesium bicarbonates
- C. magnesium sulphate
- D. all the above. Discuss
Correct Answer: all the above.
- 6. After cleaning a slow sand filter, the filtered water is not used for
Options- A. 6 hours to 12 hours
- B. 12 hours to 18 hours
- C. 18 hours to 24 hours
- D. 24 hours to 36 hours
- E. 48 hours. Discuss
Correct Answer: 24 hours to 36 hours
- 7. Hardness of water is caused due to
Options- A. calcium sulphate
- B. magnesium sulphate
- C. calcium nitrates
- D. calcium bicarbonates
- E. all the above. Discuss
Correct Answer: all the above.
- 8. Gravity conduits for carrying water from the source are
Options- A. canals
- B. flumes
- C. acqueducts
- D. all the above. Discuss
Correct Answer: all the above.
- 9. During treatment of water, sedimentation is done
Options- A. before filtration
- B. after filtration
- C. simultaneously with filtration
- D. along with chlorination. Discuss
Correct Answer: before filtration
- 10. Percussion drilling is unsuitable in
Options- A. unconsolidated sand
- B. unconsolidated gravel
- C. quick sand
- D. consolidated rocks. Discuss
Correct Answer: consolidated rocks.
More in Civil Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.