Water Resources Engineering problems
- 1. Precipitation caused by lifting of an air mass due to the pressure difference, is called
Options- A. cyclonic precipitation
- B. convective precipitation
- C. orographic precipitation
- D. none of these. Discuss
Correct Answer: cyclonic precipitation
- 2. In India, rain fall is generally recorded at
Options- A. 8 A.M.
- B. 12 Noon
- C. 4 P.M.
- D. 8 P.M. Discuss
Correct Answer: 8 A.M.
- 3. The main factor which affects the infiltration capacity, is
Options- A. thickness of saturated layer
- B. depth of surface detention
- C. soil moisture
- D. all the above. Discuss
Correct Answer: all the above.
- 4. The critical depth in a channel can be produced
Options- A. by raising the bottom of the channel
- B. by lowering the bottom of the channel
- C. by decreasing the width of the channel
- D. by increasing the width of the channel
- E. both (a) and (c) of above. Discuss
Correct Answer: both (a) and (c) of above.
- 5. For determination of average annual precipitation in a catchment basin, the best method is
Options- A. Arithmetical method
- B. Thiessen's mean method
- C. Isohyetal method
- D. None of these. Discuss
Correct Answer: Isohyetal method
- 6. Pick up the correct equation from the following :
Options- A. Run off = Surface run off + Ground water flow
- B. Run off = Surface run off - Ground water flow
- C. Run off = Surface run off / Ground water flow
- D. Run off = Surface run off x Ground water flow. Discuss
Correct Answer: Run off = Surface run off + Ground water flow
- 7. In India the recording type rain gauge generally used, is
Options- A. weighing type
- B. tipping type
- C. float recording type
- D. none of these. Discuss
Correct Answer: float recording type
- 8. A well penetrates to 30 m below the static water table. After 24 hours of pumping at 31.40 litres/minute, the water level in a test well at a distance of 80 m is lowered by 0.5 m and in a well 20 m away water is lowered by 1.0 m. The transmissibility of the auifer, is
Options- A. 1.185 m2/minute
- B. 1.285 m2/minute
- C. 1.385 m2/minute
- D. 1.485 m2/minute
- E. 1.585 m2/minute. Discuss
Correct Answer: 1.385 m2/minute
- 9. If the area of storm hydrograph is equal to 102 cm, the ordinates of a unit hydrograph may be obtained by dividing the ordinates of the storm hydrograph by
Options- A. 0.5
- B. 1
- C. 2
- D. 3
- E. 4 Discuss
Correct Answer: 4
- 10. The run off a drainage basin is
Options- A. Initial recharge + ground water accretion + precipitation
- B. Precipitation + ground water accretion + initial recharge
- C. Precipitation - ground water accretion + initial recharge
- D. Precipitation - ground water accretion - initial recharge. Discuss
Correct Answer: Precipitation - ground water accretion - initial recharge.
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