Discussion
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- Question
The value of Chezy's constant
is used in
Options- A. Chezy's formula
- B. Bazin's formula
- C. Kutter's
- D. Manning's formula.
- Correct Answer
- Kutter's
- 1. The discharge per unit plan area of a sedimentation tank, is generally called
Options- A. over flow rate
- B. surface loading
- C. over flow velocity
- D. all the above. Discuss
- 2. The sewerage system consists of
Options- A. house sewer
- B. lateral sewer
- C. branch sewer
- D. main sewer
- E. all of these. Discuss
- 3. The suitable cross-section of sewers to carry combined flow, is
Options- A. circular
- B. egg shaped
- C. rectangular
- D. horse shoe shaped. Discuss
- 4. 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
- 5. 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
- 6. In areas where rainy season is limited to a few months, the type of sewerage system recommended is
Options- A. combined system
- B. partially separate system
- C. separate system
- D. none of these. Discuss
- 7. Pick up the correct statement from the following :
Options- A. anaerobic bacteria flourish in the absence of oxygen
- B. aerobic bacteria flourish in the presence of oxygen
- C. facultative bacteria flourish with or without oxygen
- D. all the above. Discuss
- 8. The sewers
Options- A. must be of adequate size to avoid over flow
- B. must flow under gravity
to 
full - C. must be laid at least 2 to 3 m deep to collect /water from the basements
- D. all the above. Discuss
- 9. For detecting the nitrites in the sewage, the matching colour may be developed by adding
Options- A. Pottassium permanganate
- B. Sulphuric acid and napthamine
- C. Phenol-di-sulphuric acid pottassium hydroxide
- D. None of these. Discuss
- 10. Aerobic activity is maximum
Options- A. in freshly produced sewage
- B. at sewer pipes
- C. in sewer treatment plants
- D. none of these. Discuss
Waste Water Engineering problems
Search Results
Correct Answer: all the above.
Correct Answer: all of these.
Correct Answer: egg shaped
Correct Answer: having drains at different levels.
Correct Answer: aeration is done with an admixture of previously aerated sludge
Correct Answer: separate system
Correct Answer: all the above.
Correct Answer: all the above.
Correct Answer: Sulphuric acid and napthamine
Correct Answer: in freshly produced sewage
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