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Sandhya Thakur • 4.08K Points
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Q. Which of the following statement is wrong ?

(A) Energy dissipaters are provided for small discharges
(B) The siphon fall is designed to maintain a fixed supply level in the channel
(C) The energy dissipation takes place by the provision of roughening devices
(D) In a trapezoidal notch fall, the top width of the notch is kept between 3/4th to full water depth above the sill of the notch
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