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- Question
The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is
Options- A. 2 m
- B. 2.25 m
- C. 2.50 m
- D. 2.75 m
- E. 3.00 m.
- Correct Answer
- 3.00 m.
- 1. Pick up the correct statement from the following :
Options- A. Perched aquifer is found in unconfined aquifer
- B. The top surface of the water held in the perched aquifer, is known as perched water table
- C. Perched aquifer is formed in unfined accquifer if an impervious layer exists
- D. All the above. Discuss
- 2. If the viscosity of ground water is 1.00, the Slitcher's constant is 400, the effective size of soil particles in acquifer is 0.5 mm and hydraulic gradient is 1 in 80, the velocity of flow is
Options- A. 0.25 m/day
- B. 0.50 m/day
- C. 0.75 m/day
- D. 1.00 m/day
- E. 1.25 m/day. Discuss
- 3. The theory of infiltration capacity was given by
Options- A. Merrill Bernard
- B. W.W. Horner
- C. Le-Roy K. Shermen
- D. Robert E. Horten. Discuss
- 4. Hydrology helps in
Options- A. predicting maximum flows
- B. deciding the minimum reservoir capacity
- C. forecasting the availability of quantity of water at reservoir site
- D. predicting the effects on the river water level on completion of dams
- E. all the above. Discuss
- 5. If y is the depth of water at any section, then the mean velocity is
Options- A. 0.1 y
- B. 0.2 y
- C. 0.3 y
- D. 0.5 y
- E. 0.6 y. Discuss
- 6. Water supply includes
Options- A. collection, transportation and treatment of water
- B. distribution of water to consumers
- C. provision of hydrants for fire fighting
- D. mains, sub-mains and branch lines of water supply
- E. all the above. Discuss
- 7. The yield of a rapid gravity filter as compared to that of slow sand filter, is
Options- A. 10 times
- B. 15 times
- C. 20 times
- D. 30 times
- E. 35 times. Discuss
- 8. If pH value of water is
Options- A. 7 water it is said to be neutral
- B. less than 7 it is said to be acidic
- C. more than 7 it is said to be alkaline
- D. all the above. Discuss
- 9. For determining the velocity of flow of underground water, the most commonly used non-empirical formula is
Options- A. Darcy's formula
- B. Slichter's formula
- C. Hazen's formula
- D. Lacy's formula. Discuss
- 10. The maximum depth of sedimentation tanks is limited to
Options- A. 2 m
- B. 3 m
- C. 4 m
- D. 5 m
- E. 6 m. Discuss
Water Supply Engineering problems
Search Results
Correct Answer: All the above.
Correct Answer: 1.25 m/day.
Correct Answer: Robert E. Horten.
Correct Answer: all the above.
Correct Answer: 0.6 y.
Correct Answer: all the above.
Correct Answer: 30 times
Correct Answer: all the above.
Correct Answer: Darcy's formula
Correct Answer: 6 m.
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