For solving the problems is hydraulic engineering, the velocity used is velocity

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Question
For solving the problems is hydraulic engineering, the velocity used is
Options
A. velocity at the centre of pipe section
B. average velocity of flow over a section
C. mean of the velocities at the centre and that along the pipe surface
D. none of these.

Correct Answer

average velocity of flow over a section

Hydraulics problems

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1. Pick up the incorrect statement from the following :
Options
A. In radial flow, fluid flows such that pressure and velocity at any point change with respect to its distance from the central axis
B. In radial flow, velocity of flow is in a radial direction
C. In radial flow, flow may take place radially inward to or outward from the centre
D. In radial flow, flow is one dimensional with stream lines parallel.

2. A nozzle is fitted at the end of a pipe whose length is 320 m and diameter is 10 cm. If the value of f = 0.01, the diameter of the nozzle for the maximum transmission of power through the nozzle is
Options
A. 2.4 cm
B. 2.5 cm
C. 2.6 cm
D. 2.7 cm.

4. Equation of continuity of fluids is applicable only if
Options
A. flow is steady
B. flow is compressive
C. flow is one dimensional
D. velocity is uniform over the cross-sections
E. all the above.

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