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Civil Engineering Practice Test: Fluid Mechanics
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Fluid mechanics is the branch of physics concerned with the mechanics of fluids and the forces on them. It has applications in a wide range of disciplines, including mechanical, aerospace, civil, chemical and biomedical engineering, geophysics, oceanography, meteorology, astrophysics, and biology. (Source: Wikipedia)

Example of fluid mehanics in action:  Waste flowing through the sewer system, gases moving through an engine, or sap moving sucrose from the leaves to the distal parts of a tree, or even cars moving through the traffic grid.

Civil Engineering Practice Test: Fluid Mechanics
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25 Questions

1. The buoyancy depends upon the
2. Meta-centric height is given as the distance between
3. A fluid in equilibrium can’t sustain
4. In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle ‘θ’. Sensitivity of inclined tube to sensitivity of U-tube is equal to
5. Property of a fluid by which its own molecules are attracted is called
6. When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)
7. The shear stress-strain graph for a Newtonian fluid is a
8. For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called
9. Bulk modulus of a fluid is the ratio of
10. In a free nappe,
11. Density of water is maximum at
12. In a static fluid
13. Euler’s dimensionless number relates the following
14. The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)
15. The difference of pressure between the inside and outside of a liquid drop is
16. A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by
17. Choose the wrong statement. Alcohol is used in manometer, because
18. A tank of uniform cross-sectional areaA. containing liquid upto height (H1) has an orifice of cross-sectional areaA. at its bottom. The time required to bring the liquid level from H1 to H2 will be
19. Cavitation is caused by
20. True one-dimensional flow occurs when
21. The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
22. When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as
23. The flow in a pipe or channel is said to be uniform when
24. The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)
25. Coefficient of velocity is defined as the ratio of

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