Discussion
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- Question
The maximum permissible colour for domestic supplies based on cobalt scale, is
Options- A. 5 ppm
- B. 10 ppm
- C. 15 ppm
- D. 20 ppm
- E. 25 ppm.
- Correct Answer
- 20 ppm
- 1. Air valves are generally provided in pressure pipes of water supply
Options- A. at pipe junctions
- B. at summits
- C. at low points
- D. near service pipes. Discuss
- 2. Abyssinian tube well is a special type of
Options- A. slotted type wells
- B. cavity type wells
- C. strainer type well
- D. none of these. Discuss
- 3. While designing a water supply of an industrial township, industrial and commercial water demand of total supply, is assumed
Options- A. 10%
- B. 10 to 15%
- C. 15 to 20%
- D. 20 to 25%. Discuss
- 4. Water may not contain much impurities if its source is
Options- A. reservoirs
- B. stream flowing in plains
- C. lakes in lower regions
- D. spring along hill slopes
- E. none of these. Discuss
- 5. The dilution ratio at which the odour is hardly detectable is generally called threshold odour number and for public supplies it should not exceed
Options- A. 3
- B. 5
- C. 7
- D. 9
- E. 10 Discuss
- 6. The flow of water gets retarded, in
Options- A. settling tank
- B. sedimentation tank
- C. clarifer
- D. sedimentation basin
- E. all the above. Discuss
- 7. Growth of population can be conveniently represented by
Options- A. an arithmetical curve
- B. a semi-logarithmic curve
- C. a logistic curve
- D. a straight line curve
- E. all the above. Discuss
- 8. In a well planned city, the layout of distribution pipes generally adopted, is
Options- A. grid-iron system
- B. interlaced system
- C. reticulation system
- D. all the above. Discuss
- 9. The pH value of water fit for drinking, is
Options- A. 13
- B. 11
- C. 9
- D. 7
- E. 5 Discuss
- 10. Bacterias which can survive with or without free oxygen, are known
Options- A. aerobic bacterias
- B. anerobic bacterias
- C. facultative bacterias
- D. none of these. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: at summits
Correct Answer: strainer type well
Correct Answer: 20 to 25%.
Correct Answer: spring along hill slopes
Correct Answer: 3
Correct Answer: all the above.
Correct Answer: a logistic curve
Correct Answer: all the above.
Correct Answer: 7
Correct Answer: facultative bacterias
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