Mechanical Engineering - Hydraulics and Fluid Mechanics

Exercise :: Hydraulics and Fluid Mechanics - Section 3

31.

According to Pascal's law, the intensity of pressure at any point in a fluid at rest is the same in all directions.

 A. Agree B. Disagree

Explanation:

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32.

The ratio of the inertia force to the surface tension force is called Weber's number.

 A. Correct B. Incorrect

Explanation:

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33.

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

 A. continuity equation B. Bernoulli's equation C. Pascal's law D. Archimede's principle

Explanation:

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34.

The buoyancy depends upon the

 A. weight of the liquid displaced B. pressure with which the liquid is displaced C. viscosity of the liquid D. compressibility of the liquid

Explanation:

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35.

In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

 A. less than B. more than