Discussion
Home ‣ Civil Engineering ‣ Waste Water Engineering Comments
- Question
The standard B.O.D. of water is taken for
Options- A. 1 day
- B. 2 days
- C. 3 days
- D. 5 days
- E. 10 days.
- Correct Answer
- 5 days
- 1. In sewers the highest non-scouring velocity is achieved in
Options- A. glazed bricks sewers
- B. cast iron sewers
- C. cement concrete sewers
- D. stone ware sewers. Discuss
- 2. Pick up the correct statement from the following :
Options- A. The materials separated by screens, is called screenings
- B. The screenings are disposed off either by burning or by burial or by dumping
- C. The process of burning the screenings, is called incineration
- D. The process of burning the screenings, is known as compositing
- E. All the above. Discuss
- 3. In case of Imhoff tanks,
Options- A. the shape is rectangular
- B. detention period is 2 hours
- C. the velocity of flow is restricted to 0.30 m/minute
- D. surface loading is limited to 30, 000 litres/m of plan area per day
- E. All the above. Discuss
- 4. Sewer ventilating columns are generally placed at
Options- A. distances 150 m to 300 m
- B. upper ends of branch sewers
- C. every change in the size of sewers
- D. all the above. Discuss
- 5. The detention period for plain sedimentation water tanks, is usually
Options- A. 4 to 8 hours
- B. 8 to 16 hours
- C. 16 to 24 hours
- D. 24 to 36 hours. Discuss
- 6. The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
Options- A. 1.095
- B. 1.085
- C. 1.075
- D. 1.065 Discuss
- 7. The digested sludge from septic tanks, is removed after a maximum period of
Options- A. 3 years
- B. 3.5 years
- C. 4 years
- D. 5 years. Discuss
- 8. The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is
Options- A. 30 minutes
- B. 1 hour
- C. 1 hour and 30 minutes
- D. 2 hours
- E. 3 hours. Discuss
- 9. In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is
Options- A. 5
- B. 10
- C. 15
- D. 20 Discuss
- 10. The effluent of a septic tank is
Options- A. fit for discharge into any open drain
- B. foul and contains dissolved and suspended solids
- C. as good as that from a complete treatment
- D. none of these. Discuss
Waste Water Engineering problems
Search Results
Correct Answer: glazed bricks sewers
Correct Answer: All the above.
Correct Answer: All the above.
Correct Answer: all the above.
Correct Answer: 4 to 8 hours
Correct Answer: 1.095
Correct Answer: 3 years
Correct Answer: 2 hours
Correct Answer: 20
Correct Answer: fit for discharge into any open drain
Comments
There are no comments.More in Civil Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.