Irrigation Engineering
The most suitable section of a lined canal, is

Both (a) and (b)
None of these
Trapezoidal section with rounded corners for large canals
Triangular section with circular bottom for small canals

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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 :

A is false but R is true
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 true but R is false

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