Discussion
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- Question
The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is
Options- A. 1.5
- B. 2.0
- C. 3.0
- D. 4.0
- Correct Answer
- 2.0
- 1. Disposal to sewage in large cities, is done in
Options- A. irrigation
- B. dilution
- C. oxidation
- D. putrifaction. Discuss
- 2. If the side of a square sewer is 1000 mm, the diameter of a hydraulically equivalent circular section, is
Options- A. 1045 mm
- B. 1065 mm
- C. 1075 mm
- D. 1095 mm. Discuss
- 3. Flocculated particles do not change their
Options- A. size
- B. shape
- C. weight
- D. none of these. Discuss
- 4. Self-cleansing velocity is
Options- A. velocity at dry weather flow
- B. velocity of water at flushing
- C. velocity at which no accumulation remains in the drains
- D. velocity of water in a pressure filter. Discuss
- 5. Removal of oil and grease from sewage, is known
Options- A. screening
- B. skimming
- C. filtration
- D. none of these. Discuss
- 6. In SI units the power of sound is represented in
Options- A. kgs
- B. joules
- C. neutons
- D. watts. Discuss
- 7. The asbestos cement pipes are generally laid
Options- A. horizontally
- B. vertically
- C. at an angle of 30°
- D. at an angle of 60°. Discuss
- 8. Pick up the correct statement from the following :
Options- A. pH value indicates acidity and alkalinity of sewage
- B. In acidic sewage, the pH value is less than 7
- C. In alkaline sewage, the pH value is more than 7
- D. Fresh sewage is generally alkaline
- E. All the above. Discuss
- 9. The dimensions of a rectangular settling tank are : length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is
Options- A. 204 cu m
- B. 208 cu m
- C. 212 cu m
- D. 216 cu m
- E. 220 cu m. Discuss
- 10. For evaporation and measurement of settlable solids, the apparatus used, is
Options- A. a jar
- B. a breaker
- C. a test tube
- D. an Imhoff cone. Discuss
Waste Water Engineering problems
Search Results
Correct Answer: dilution
Correct Answer: 1095 mm.
Correct Answer: none of these.
Correct Answer: velocity at which no accumulation remains in the drains
Correct Answer: skimming
Correct Answer: watts.
Correct Answer: vertically
Correct Answer: All the above.
Correct Answer: 216 cu m
Correct Answer: an Imhoff cone.
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