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Hydraulic Exam set

Welcome to your Hydraulic Exam Set 1

1. When a body is placed over a liquid, it will sink down if
2. The property by virtue of which a liquid opposes relative motion between its different layers is called
3. A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
4. When a body floating in a liquid, is displaced slightly, it oscillates about
5. The side slope of Cipolletti weir is generally kept
6. When a body is totally or partially immersed in a fluid, it is buoyed up by a force equal to
7. The ratio of the percentagge error in the discharge and percentage error in the measurement of head over a triangular notch, is
8. The continuity equation
9. In flow, the liquid particles may possess
10. Euler's equation for the motion of liquids assumes that
11. For most economical rectangular section of a channel, the depth is kept
12. In a centrifugal pump casing, the flow of water leaving the impeller, is
13. To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is
14. Non uniform flow occurs when
15. When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface.
16. The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as
17. Dimensions of the dynamic viscosity (μ) are
18. Discharge over an ogee weir remains the same as that of
19. Atmospheric pressure is equal to water column head of
20. Shear stress is directly proportional to
21. To avoid an interruption in the flow of a syphon, an air vessel is provided
22. Pick up the correct statement from the following :
23. Most economical section of a triangular channel, is
24. In an open tube, free surface of mercury remains
25. The value of momentum correction factor (β) for a laminar flow through a circular pipe, is

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