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 :

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

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Irrigation Engineering
Pick up the correct sequence of the part of a canal system from the following

Head works-main canal-branch canal-minor-distributary
Heads works-branch canal-main canal distributary, minor
Head works-main canal-branch canal-distributary-minor
Head work-distributary-branch canal-minor

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Irrigation Engineering
In rigid module, the discharge

Depends upon the water levels of both, i.e. distributary and water course
Depends upon the water level in the water course
Depends upon the water level in distributary
Is independent of water levels in the distributary and water course

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