21. An outlet is said to be proportional if its flexibility, is
22. If average particle size of the silt in millimeters is m, the Lacey's silt factor f is proportional to
23. The Lacey's regime velocity is proportional to
24. If V0 is the critical velocity of a channel, its silt transporting power, according to Kennedy is proportional to
25. Pick up the correct statement from the following
26. The net head under which the turbine reaches its peak efficiency at synchronous speed is called
27. If water table is comparatively high, the irrigation canal becomes useless, due to
28. In a concrete canal the approximate permissible velocity of water should not exceed
29. The field capacity of a soil depends upon
30. A land is said to be water-logged if its soil pores within
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