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- Question
Lead caulked joints are used for laying
Options- A. stone ware pipes
- B. earthern ware pipes
- C. C.I. pipes
- D. G.I. pipes.
- Correct Answer
- earthern ware pipes
- 1. The maximum diameter of sewers adopted in the designs is
Options- A. 1.0 m
- B. 2.0 m
- C. 3.0 m
- D. 4.0 m. Discuss
- 2. Dried sewage after treatment is used as
Options- A. fertilizer
- B. building material
- C. chemical for lowering B.O.D.
- D. base material for paints. Discuss
- 3. Lead acetate test in sewer manhole is done to test the presence of
Options- A. Methane gas
- B. Hydrogen sulphide
- C. Carbondioxide gas
- D. Diesel vapours. Discuss
- 4. Sluge banks are formed if sewage is disposed of in
Options- A. rivers
- B. seas
- C. lakes
- D. none of these. Discuss
- 5. The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is
Options- A. 0.05552 cumec
- B. 0.05554 cumec
- C. 0.05556 cumec
- D. 0.0556 cumec
- E. 0.0558 cumec. Discuss
- 6. The design period of sewage treatment works in normally
Options- A. 5 - 10 years
- B. 15 - 20 years
- C. 30 - 40 years
- D. 40 - 50 years. Discuss
- 7. Pick up the correct statement from the following :
Options- A. The ratio of the quantity of the diluting water to that of the sewage, is known as dilution factor
- B. The automatic purification of polluted water, is known self purification phenomenon
- C. The photosynthesis is carried out in the presence of sun light
- D. Grab sample is generally obtained from the surface where turbulence mixes the sewage particles
- E. All the above. Discuss
- 8. For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed
Options- A. 1.5
- B. 2.0
- C. 2.5
- D. 3.0 Discuss
- 9. If D is the diameter of upper circular portion, the area of cross-section of a standard egg shaped sewer, is
Options- A.
- B.
- C.
- D.
Discuss
- 10. The sewer which received discharge from two or more main sewers, is known as
Options- A. a trunk sewer
- B. an outfall sewer
- C. a main sewer
- D. an intercepting sewer. Discuss
Waste Water Engineering problems
Search Results
Correct Answer: 3.0 m
Correct Answer: fertilizer
Correct Answer: Hydrogen sulphide
Correct Answer: seas
Correct Answer: 0.05556 cumec
Correct Answer: 15 - 20 years
Correct Answer: All the above.
Correct Answer: 2.0
Correct Answer:
Correct Answer: a trunk sewer
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