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Fluid Mechanics MCQ 14

1. A flow through a long pipe at constant rate is called
2. A weir is usually made of masonry or concrete.
3. If a pitot tube is placed with its nose upstream, downstream or sideways, the reading will be the same in every case.
4. The volume per unit mass of a liquid is called specific volume.
5. Coefficient of contraction is the ratio of
6. A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called
7. A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
8. One litre of water occupies a volume of
9. In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water.
10. The value of bulk modulus of a fluid is required to determine
11. A flow in which the viscosity of fluid is dominating over the inertia force is called
12. In a free nappe,
13. A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
14. An air vessel is provided at the summit in a syphon to
15. An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.
16. The Reynold's number of a ship is __________ to its velocity and length.
17. When a tube of smaller diameter is dipped in water, the water rises in the tube due to viscosity of water.
18. According to equation of continuity for incompressible fluid
19. The weight per unit volume of a liquid at a standard temperature and pressure is called
20. The coefficient of viscosity may be determined by
Fluid Mechanics MCQ 14
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