Discussion
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- Question
rd or 
th extra space is left in sewer pipes at maximum discharge for
Options- A. low estimates of the average and maximum flows
- B. large scale infiltration of storm water
- C. unexpected increase in population
- D. all the above.
- Correct Answer
- all the above.
- 1. Antisyphonage pipe is fitted
Options- A. at the end of septic tanks
- B. on manholes
- C. with a W.C. trap
- D. at the beginning of sewer line. Discuss
- 2. The rational formula for peak drainage discharge, was evolved by
Options- A. Fruhling
- B. Lloyd David
- C. Kuichling
- D. All of these. Discuss
- 3. Sewer pipes need be checked for
Options- A. minimum flow
- B. maximum flow
- C. both (a) and (b)
- D. none of these. Discuss
- 4. The ratio of design discharge to the surface area of a sedimentation tank is called
Options- A. surface loading
- B. overflow rate
- C. overflow velocity
- D. all of these. Discuss
- 5. Hume steel pipes are
Options- A. steel pipes
- B. R.C.C. pipes
- C. steel shell coated from inside with cement mortar
- D. steel shell coated from outside with cement mortar
- E. both (c) and (d). Discuss
- 6. The minimum diameter of a sewer is kept
Options- A. 10 cm
- B. 15 cm
- C. 20 cm
- D. 25 cm
- E. 30 cm. Discuss
- 7. The minimum diameter of sewer to be adopted is
Options- A. 10 cm
- B. 12.5 cm
- C. 15 cm
- D. 25 cm. Discuss
- 8. In the activated sludge process
Options- A. aeration is continued till stability
- B. aeration is done with an admixture of previously aerated sludge
- C. sludge is activated by constant stirring
- D. water is removed by centrifugal action. Discuss
- 9. Drop manholes are the manholes
Options- A. without entry ladders
- B. without manhole covers
- C. with depths more than 3.5 m
- D. having drains at different levels. Discuss
- 10. The suitable cross-section of sewers to carry combined flow, is
Options- A. circular
- B. egg shaped
- C. rectangular
- D. horse shoe shaped. Discuss
Waste Water Engineering problems
Search Results
Correct Answer: with a W.C. trap
Correct Answer: All of these.
Correct Answer: both (a) and (b)
Correct Answer: all of these.
Correct Answer: both (c) and (d).
Correct Answer: 15 cm
Correct Answer: 15 cm
Correct Answer: aeration is done with an admixture of previously aerated sludge
Correct Answer: having drains at different levels.
Correct Answer: egg shaped
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