Q.

Which of the following statement is wrong?

A. 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.
B. The energy dissipation takes palce by the provision of roughening devices.
C. The siphon fall is designed to maintain a fixed supply level in the channel.
D. Energy dissipators are provided for small discharges.
Answer» D. Energy dissipators are provided for small discharges.
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