21. The angle of contact in case of a liquid depends upon
22. The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)
23. The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)
24. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as
25. Euler's equation in the differential form for the motion of liquids is given by
26. A structure used to dam up a stream or river over which the water flows is called
27. A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the
28. An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.
29. An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.
30. Total pressure on a 1 m × 1 m gate immersed vertically at a depth of 2 m below the free water surface will be
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