Irrigation Engineering
According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is

1.75 D
1.50 D
1.25 D
2.00 D

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

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

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