In case of a trapezoidal notch fall
A. Top width of the notch is kept between $${\frac{3}{4}^{{\text{th}}}}$$ of full water depth above the sill of the notch
B. Top length of the piers should not be less than their thickness
C. Splay upstream from the notch section is 45°
D. Splay downstream from the notch section is $$22{\frac{1}{2}^ \circ }$$
E. All the above
Answer: Option E
This Question Belongs to Civil Engineering >> Irrigation Engineering
Finally formed berms in canals are provided for
A. Protection of banks erosion by the waves
B. Control of seepage losses
C. Strengthening of banks
D. All the above
Canals constructed for draining off water from water logged areas, are known
A. Drains
B. Inundation canals
C. Valley canals
D. Contour canals
A hydroelectric scheme operating under a head of 80 m will be classified as
A. low head scheme
B. medium head scheme
C. high head scheme
D. none of the above
A. Low sodium water
B. Medium sodium water
C. High sodium water
D. Very high sodium water
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