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

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Q. Pick up the correct statement from the following :

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Q. The best unit period of a unit hydrograph, is equal to basin lag divided by

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Q. 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)

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Q. Pick up the correct statement from the following :

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Q. Ryve's formula for flood estimate in cumecs, is

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Q. Levees and flood walls,

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Q. Pick up the correct statement from the following :

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Q. The respective storm totals at three surrounding stations A, B and C are 110, 90 and 70 mm. If the normal annual precipitation amounts at stations X, A, B and C are respectively 1000, 1100, 1200 and 1250 mm, the estimated storm precipitation at X is

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Q. The recurrence interval (R.I.) of 20 cm rain storm at a place is 5 years.

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Q. Sharp crested weirs are generally used

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Q. The area of a drainage basin whose axial length is 100 km is 2500 sq. km. Its form factor is

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Q. If the axial length of a drainage basin is 35 km and its form factor is 0.2, the total area of the basin is

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Q. Run off is measured in

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Q. For efficient working of a control meter, its throat length is approximately kept

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Q. A control meter is preferred to a weir because

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

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Q. The run off is affected by

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Q. The form factor of a drainage basin is obtained by dividing

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Q. Isopiastic lines are the contours

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