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

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Irrigation Engineering
A hydraulic jump is generally formed when a stream moving with

A hyper-critical velocity meets a stream moving with a critical velocity
A sub-critical velocity meets a stream moving with a hyper-critical velocity
A hyper-critical velocity meets a stream moving with a sub-critical velocity
A hyper-critical velocity meets a stream moving with a hyper-critical velocity

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Irrigation Engineering
A deep well

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

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