Correct Answer:
Produces a mass curve of rain fall
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2. The initial basin recharge is equal to
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Correct Answer:
Interception
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3. 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
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Correct Answer:
4
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4. The run off is affected by
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Type of precipitation
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5. Infiltration capacity of soil depends upon
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Correct Answer:
Number of voids present in the soil
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6. The Hydrology helps in
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Correct Answer:
All these
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7. If y is the depth of water at any section, then the mean velocity is
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Correct Answer:
0.6 y.
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8. While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in
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Correct Answer:
Both Thiessen's mean method and Isohyetal method.
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9. Unit Hydrograph theory was enunciated by
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Correct Answer:
Le-Roy K. Shermen
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10. For computing the run off volumes of large areas, number of infiltrations used are
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Correct Answer:
2
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11. For the estimate of high floods in fan-shaped catchment, the formula used is
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Correct Answer:
Inglis formula
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12. The run off a drainage basin is
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Precipitation - ground water accretion - initial recharge.
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13. Pick the correct statement from the following:
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Perched aquifer is found in unconfined aquifer
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14. Consumptive use of a crop during growth, is the amount of
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Correct Answer:
All these
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15. In India the recording type rain gauge generally used, is
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Float recording type
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16. Pick up the correct statement from the following:
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Correct Answer:
Rain which is intercepted by buildings, vegetations and other objects, is generally known as rainfall interception
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17. The theory of infiltration capacity was given by
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Correct Answer:
Robert E. Horten.
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18. The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is
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Correct Answer:
Greater for lighter rain
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19. Hydrology helps in
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All these
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20. The main factor which affects the infiltration capacity, is
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Correct Answer:
Depth of surface detention
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