Hydrology and Ground Water

11. A river is said to be of uniform section if in its section

1. A segment of a circle can be fitted
2. A parabolic section can be fitted
3. A rectangular section can be fitted
4. All the above

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12. A river training work is generally required when the river is

1. Aggrading type
2. Degrading type
3. Meandering type
4. Both (A) and (B)

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13. A runoff river plant

1. Is a medium head scheme
2. Generates power during peak hours only
3. Is suitable only on a perennial river
4. Has no pondage at all

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14. A runoff river plant is

1. A low head scheme
2. A medium head scheme
3. A high head scheme
4. None of the above

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15. A soil strata may consist of

1. Soil zone
2. Intermediate zone
3. Capillary zone
4. All the above

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16. A straight glacis type fall with a baffle platform and a baffle wall is called

1. Vertical drop-fall
2. Glacis fall
3. Montague type fall
4. Inglis fall

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17. A unit hydro graph has one unit of

1. Rainfall duration
2. Rainfall excess
3. Time base of direct runoff
4. Discharge

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18. A unit hydrograph is a hydrograph of a rain storm of a specified duration resulting from a run-off of

1. 15 mm
2. 20 mm
3. 25 mm
4. 30 mm

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19. A volume of air at constant barometric pressure may be brought to dew point by

1. Increasing the temperature
2. Decreasing the temperature
3. Neither (a) nor (b)
4. Both (a) and (b)

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20. 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

1. 43526
2. 5/4
3. 4/5
4. 43654

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