# Civil Engineering - Hydraulics

### Exercise :: Hydraulics - Section 3

31.

A fluid particle may possess the displacement of

 A. translation B. rotation C. distortion D. all the above.

Explanation:

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32.

In Chezy's formula V = C mi

 A. V is the mean velocity of flow B. m is the hydraulic mean depth C. i is the loss of head per unit length of pipe D. All the above.

Explanation:

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33.

Pick up the correct statement from the following :

 A. When the length of the tube is equal to diameter of the internal mouth piece, the jet of liquid comes out without touching the sides of the tube B. When the length of the tube is three times the diameter of the internal mouth piece, the jet diameter is equal to diameter of the tube. C. both (a) and (b) D. Neither (a) nor (b).

Explanation:

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34.

If total head available at the inlet of pipe and f1 is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (ηmax) is

 A. 1/2 B. 2/3 C. 3/4 D. 4/5

Explanation:

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35.

Piezometers are used to measure

 A. pressure in water channels, pipes etc. B. difference in pressure at two points C. atmospheric pressure D. very low pressure.