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- Question
Most satisfactory formula for an estimate of fire demand Q for a city of population P in thousands for Indian conditions, is
Options- A.
- B. Q = 1640 P (1 - 0.01 P)
- C. Q = 3180 P
- D. none of these.
- Correct Answer
- Q = 3180 P
- 1. The transitional middle portion of a logistic curve follows
Options- A. a geometric growth
- B. a logarithmic growth
- C. a first over curve
- D. a constant rate. Discuss
- 2. The least thickness of class B cast iron (spun) pipe, is
Options- A. 7.2 mm
- B. 7.9 mm
- C. 8.6 mm
- D. 10 mm. Discuss
- 3. The population growth curve is
Options- A. S-shaped curve
- B. parabolic curve
- C. circular curve
- D. straight line
- E. none of these. Discuss
- 4. Corrosion of a pipe
Options- A. reduces its life span
- B. reduces its carrying capacity
- C. adds colour to water
- D. adds odour to water
- E. all the above. Discuss
- 5. Average annual rainfall at any station is the average of annual rainfall over a period of
Options- A. 7 years
- B. 14 years
- C. 21 years
- D. 28 years
- E. 35 years. Discuss
- 6. Water supply system includes
Options- A. digging a well for water
- B. construction of dams
- C. construction of canals
- D. entire arrangement from source to distribution. Discuss
- 7. Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be
Options- A. nil
- B. 5
- C. 10
- D. 15
- E. 20 Discuss
- 8. Turbidity of raw water is a measure of
Options- A. suspended solids
- B. acidity of water
- C. B.O.D.
- D. none of these. Discuss
- 9. The fire demand of a city may be worked out by
Options- A. Kuichling's formula
- B. Freeman formula
- C. Under Writers formula
- D. Bustan's formula
- E. All the above. Discuss
- 10. Most commonly used pump for lifting water in water supply mains, is
Options- A. axialflow pump
- B. reciprocating pump
- C. rotary type pump
- D. centrifugal pumps
- E. none of these. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: a constant rate.
Correct Answer: 8.6 mm
Correct Answer: S-shaped curve
Correct Answer: all the above.
Correct Answer: 35 years.
Correct Answer: entire arrangement from source to distribution.
Correct Answer: nil
Correct Answer: suspended solids
Correct Answer: All the above.
Correct Answer: axialflow pump
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