Q. If the grain size of soil increases

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Q. Pick up the correct statement from the following :

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Q. The best instrument for measuring the velocity of a stream flow is

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Q. The average mean velocity of a stream having depth h, may be obtained by taking the average of the readings of a current meter at a depth of

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Q. If the velocities of flow of a stream of 10 m depth recorded by a current meter at depths of 2 m and 8 m are 0.7 m and 0.3 m respectively, the discharge per unit width of the stream in cubic metres, is

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Q. The time required by rain water to reach the outlet of drainage basin, is generally called

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Q. Time of overland flow, is affected by

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Q. The polythene bottles are used for collecting rain water and. their capacities is

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Q. Symon's rain gauge is

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Q. The rainfall cycle period in India is taken as

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Q. Pick up the correct statement from the following :

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Q. Isohytes are the imaginary lines joining the points of equal

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Q. For high flood estimates the average value of the constant C in Dicken's formula Q = (CA)^3/4, is

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Q. Pettis formula Q = C (P.B)^5/4 cumecs, is based upon

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Q. For predicting floods of a given frequency, the best reliable method is

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Q. The earthen embankments constructed parallel to the river banks at some suitable distance for flood control, are known as

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Q. In nature water may occur as

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Q. Hydrology is the science which deals with

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Q. The surface run off is due to

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Q. Hydrograph is a graphical representation of

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