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Fluid Mechanics

Fluid Mechanics
A piezometer opening measures the __________ fluid pressure.

Total
Dynamic
Undisturbed
Static

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Fluid Mechanics
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

Pipe length
Time taken to close the valve
All of these
Fluid velocity in the pipe

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Fluid Mechanics
Which of the following is not a dimension-less parameter?

None of these
Specific gravity
Euler number
Fanning friction factor

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Fluid Mechanics
The nominal size of a hose pipe is specified by its

I.D.
Thickness
None of these
O.D.

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Fluid Mechanics
In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)

1.5 Vavg
1.2 Vavg
Vavg
1.8 Vavg

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Fluid Mechanics
Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.)

d1/3
d4/5
√d
d2/3

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