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MCQs 1: The major resisting force in a gravity dam is___________________?

water pressure wave pressure self-weight of dam uplift pressure
Answer Explanation

MCQs 2: Horizontal acceleration due to earthquake results in______________?

hydrodynamic pressure inertia force into the body of the dam both (A) and (B) none of the above
Answer Explanation

MCQs 3: The uplift pressure on a dam can be controlled by_________________?
1) constructing cutoff under upstream face
2) constructing drainage channels bet-ween the dam and its foundation
3) by pressure grouting in foundation
The corret answer is?

only (1) both (1) and (2) both (1) and (3) (1), (2) and (3)
Answer Explanation

MCQs 4: The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after_________________?

50 years 150 years 200 years 250 years
Answer Explanation

MCQs 5: For a flood control reservoir, the effective storage is equal to_______________?

useful storage – valley storage useful storage + surcharge storage useful storage + surcharge storage + valley storage useful storage + surcharge storage -valley storage
Answer Explanation

MCQs 6: The useful storage is the volume of water stored in the reservoir between________________?

minimum pool level and maximum pool level minimum pool level and normal pool level normal pool level and maximum pool level river bed and minimum pool level
Answer Explanation

MCQs 7: A deep well_________________?

is always deeper than a shallow well has more discharge than a shallow well is weaker structurally than a shallow well both (A) and (B)
Answer Explanation

MCQs 8: If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by_______________?

T = kd T = k/d T= Vkd k= VTd
Answer Explanation

MCQs 9: The relation between probability (P) and recurrence interval (T) is given by_________________?

PT = 1 PT2 = 1 P/T = 1 P/T2 = 1
Answer Explanation

MCQs 10: The unit hydrograph of a specified duration can be used to evaluate the hydrograph of storms of_________________?

same duration only same and shorter duration same and longer duration any duration
Answer Explanation

MCQs 11: The best unit duration of storm for a unit hydrograph is________________?

1 hour one-fourth of basin lag one-half of basin lag equal to basin lag
Answer Explanation

MCQs 12: The rainfall on five successive days were measured as 100 mm, 80 mm, 60 mm, 40 mm and 20 mm respectively. If the infiltration index or the storm loss rate for the catchment area is earlier estimated as 50 mm/day, the total surface run off will be________________?

50 mm 60 mm 90 mm 140 mm
Answer Explanation

MCQs 13: A current meter is used to measure the__________________?

velocity of flow of water depth of flow of water discharge none of the above
Answer Explanation

MCQs 14: The runoff increases with________________?

increase in intensity of rain increase in infiltration capacity increase in permeability of soil all of the above
Answer Explanation

MCQs 15: When surface of transpiration is submerged under water, then potential evapotranspiration is________________?

much more than evapotranspiration much less than evapotranspiration equal to evapotranspiration equal to or less than evapotranspi-ration
Answer Explanation

MCQs 16: Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?

flat water surface convex water surface concave water surface independent of shape of water surface
Answer Explanation

MCQs 17: A raingauge should preferably be fixed________________?

near the building under the tree in an open space in a closed space
Answer Explanation

MCQs 18: Cyclonic precipitation is caused by lifting of an air mass due to________________?

pressure difference temperature difference natural topographical barriers all of the above
Answer Explanation

MCQs 19: Infiltration is the_______________?

movement of water through the soil absorption of water by soil surface both (A) and (B) none of the above
Answer Explanation

MCQs 20: The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called_________________?

hygroscopic water equivalent moisture soil moisture deficiency pellicular water
Answer Explanation

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