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

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Irrigation Engineering
Pick up the correct statement from the following mention

Capillary moisture held in the soil pores against gravity by surface tension, is utilised by plants
Hygroscopic water remains attached to soil molecules by chemical bond
Gravity water is harmful to crops
All of these

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Irrigation Engineering
In a syphon aqueduct

Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough
Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough

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