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Water Resources Engineering MCQ

A recording type rain gauge

Answer

Correct Answer: Produces a mass curve of rain fall

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The initial basin recharge is equal to

Answer

Correct Answer: Interception

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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

Answer

Correct Answer: 4

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The run off is affected by

Answer

Correct Answer: Type of precipitation

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Infiltration capacity of soil depends upon

Answer

Correct Answer: Number of voids present in the soil

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The Hydrology helps in

Answer

Correct Answer: All these

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If y is the depth of water at any section, then the mean velocity is

Answer

Correct Answer: 0.6 y.

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While calculating the average depth of annual precipitation in a catchment basin, importance to individual raingauge station is given in

Answer

Correct Answer: Both Thiessen's mean method and Isohyetal method.

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Unit Hydrograph theory was enunciated by

Answer

Correct Answer: Le-Roy K. Shermen

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For computing the run off volumes of large areas, number of infiltrations used are

Answer

Correct Answer: 2

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For the estimate of high floods in fan-shaped catchment, the formula used is

Answer

Correct Answer: Inglis formula

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The run off a drainage basin is

Answer

Correct Answer: Precipitation - ground water accretion - initial recharge.

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Pick the correct statement from the following:

Answer

Correct Answer: Perched aquifer is found in unconfined aquifer

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Consumptive use of a crop during growth, is the amount of

Answer

Correct Answer: All these

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In India the recording type rain gauge generally used, is

Answer

Correct Answer: Float recording type

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Pick up the correct statement from the following:

Answer

Correct Answer: Rain which is intercepted by buildings, vegetations and other objects, is generally known as rainfall interception

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The theory of infiltration capacity was given by

Answer

Correct Answer: Robert E. Horten.

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The deficiency in rain catch due to vertical acceleration of air forced upward over the gauge, is

Answer

Correct Answer: Greater for lighter rain

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Hydrology helps in

Answer

Correct Answer: All these

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The main factor which affects the infiltration capacity, is

Answer

Correct Answer: Depth of surface detention

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