11. If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by
12. Lacey's equation for calculating flood discharge in rivers, is
13. Which of the following types of falls use parabolic glacis for energy dissipation ?
14. Lining of irrigation channels
15. Canals taken off from ice-fed perennial rivers, are known
16. The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to
17. Pick up the correct sequence of the part of a canal system from the following
18. While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3
19. The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after
20. To hold hydraulic jumps, baffle walls are provided in
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