Irrigation Engineering
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

250 years
50 years
200 years
150 years

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Irrigation Engineering
Pick up the correct statement from the following sentence

All of these
Escapes are essential safety valves in a canal system
The escapes are aligned to take advantage of contours of lower values
The escapes must lead the surplus water to natural drainages

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Irrigation Engineering
Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas.Reason R : Rainfall gradient is steep.Select your correct answer according to the coding system given below :

Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is false but R is true
A is true but R is false

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