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If the upstream face of the spillway is kept vertical, the crest shape should also confirm to the lower nappe of an inclined sharp-crested weir.

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in Irrigation Engineering by (75.2k points)
If the upstream face of the spillway is kept vertical, the crest shape should also confirm to the lower nappe of an inclined sharp-crested weir.

(a) True

(b) False

I got this question in exam.

The question is from Ogee Spillway in section Spillways, Energy Dissipators and Spillway Gates of Irrigation Engineering

1 Answer

0 votes
by (106k points)
The correct option is (b) False

Easy explanation: If the upstream face of the spillway is kept vertical, the crest shape confirms to the lower nappe of a vertical sharp-crested weir under the maximum head. But if u/s face is kept sloping the crest shape should also confirm to the lower nappe obtained for an inclined sharp-crested weir.

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