Irrigation

Q1: Groynes are generally built

A perpendicular to the bank

B inclined up stream up to 30°

C inclined down stream upto 30°

D all the above.

ANS:B - inclined up stream up to 30°

A is the correct answer.

Because groynes are the structure provided perpendicular to the flow of the river to project bank up it certain distance U/S and D/S.



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