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- Question
A well is sunk in an unconfined aquifer having a saturated depth of 100 m. Assuming the equilibrium flow conditions and a homogeneous aquifer and radius of influence to be same, the ratio of discharges at 20 m and 40 m draw downs, is
Options- A. 2/3
- B. 5/4
- C. 4/5
- D. 7/8
- E. 8/7
- Correct Answer
- 8/7
- 1. If total run off of a basin of 50 hectares is 0.8 cm, the ordinate of Bernard's distribution graph, may be calculated by the formula (where Q is the discharge in cumecs at the given time)
Options- A. y = 50 Q
- B. y = 100 Q
- C. y = 150 Q
- D. y = 200 Q
- E. y = 250 Q Discuss
- 2. Pick up the correct statement from the following :
Options- A. The specified duration of unit hydrograph, is called unit duration
- B. The rain during specified duration, is called unit storm
- C. A unit hydrograph for a particular unit duration may be utilised for evaluating the run off hydrographs of other storms of like durations
- D. The number of unit hydrographs for a given basin, is theoretically infinite
- E. All the above. Discuss
- 3. The rate of rainfall for successive 10 minute periods of a 60 minute duration storm, are shown in the below figure. If the value of ?index is 3 cm/hour, the run off will be
Options- A. 2 cm
- B. 3 cm
- C. 4 cm
- D. 5 cm. Discuss
- 4. Rain simulators are used for the determination of
Options- A. evaporation
- B. precipitation
- C. run off
- D. infiltration capacity
- E. none of these. Discuss
- 5. Pick up the correct statement from the following :
Options- A. The throat of the section of a control meter is either rectangular or trapezoidal
- B. The floor of the control meter throat is almost level
- C. The floor of the expanding outlet of the control meter is given a steep slope
- D. A properly designed control meter is associated with the phenomena of hydraulic jump
- E. All the above. Discuss
- 6. Pick up the correct statement from the following :
Options- A. A confined bed of impervious material laid over an acquifer, is known as an aquiclude
- B. The top most water bearing strata having no acquifer, is known as non-artesion acquifer
- C. The ordinary gravity wells which supply water from the top most water bearing strata, are called water table wells
- D. A permeable stratum which is capable to yield appreciate quantities of ground water, is known as an aquifer
- E. All the above. Discuss
- 7. Discharge curve may be extended by logarithmic method if
Options- A. cross section of river is uniform
- B. river is broader and shallower
- C. river is of any type
- D. none of these. Discuss
- 8. Phytometer method is generally used for the measurement of
Options- A. interception
- B. evaporation
- C. transpiration
- D. none of these. Discuss
- 9. If the grain size of soil increases
Options- A. surface area decreases
- B. specific retention decreases
- C. specific yield increases
- D. water supply in well increases
- E. all the above. Discuss
- 10. Hydrology is the science which deals with
Options- A. rain water
- B. river water
- C. sea water
- D. surface and underground water
- E. flood water. Discuss
Water Resources Engineering problems
Search Results
Correct Answer: y = 250 Q
Correct Answer: All the above.
Correct Answer: 3 cm
Correct Answer: infiltration capacity
Correct Answer: All the above.
Correct Answer: All the above.
Correct Answer: cross section of river is uniform
Correct Answer: transpiration
Correct Answer: all the above.
Correct Answer: surface and underground water
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