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Which type of weir is suitable for any type of foundation?

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+1 vote
in Irrigation Engineering by (75.2k points)
Which type of weir is suitable for any type of foundation?

(a) Sloping Weir

(b) Vertical Drop Weir

(c) Parabolic Weir

(d) Masonry Sloping Weir

I have been asked this question in exam.

This interesting question is from Diversion Head Works topic in section Diversion Head Works, Hydraulic Jump Usefulness in Irrigation Structure of Irrigation Engineering

1 Answer

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by (106k points)
The correct answer is (b) Vertical Drop Weir

To elaborate: This type of weir is suitable for kind of foundation because it is provided with or without crest gates, cutoff piles are provided at both upstream and downstream, to protect against scouring aprons are provided at both up and down streams, and at downstream to relieve uplift pressure graded inverted filter is provided.

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