# Civil Engineering - Hydraulics

### Exercise :: Hydraulics - Section 1

16.

The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is

 A. 0.5 B. 0.75 C. 1.25 D. 2

Explanation:

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17.

The shear stress distribution in viscous fluid through a circular pipe is :

 A. maximum at the centre B. maximum at the inside of surface C. same throughout the section D. none of these.

Explanation:

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18.

Product of Renold number, Froud's number and Mach number is :

 A. B. C. D.

Explanation:

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19.

Pick up the correct statement from the following :

 A. For tranquil flow h > 2g or v < B. For critical flow C. For torrential flow h > or v < gh D. None of these.

Explanation:

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20.

The side slope of Cipolletti weir is generally kept

 A. 1 to 4 B. 1 to 3 C. 1 to 2 D. 1 : 5