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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

dependent on the flow
a physical property of the fluid.
a function of temperature only
independent of the flow

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator normally consists of

Two coaxial rams and two cylinders
Two cylinders, two rams and a storage device
A cylinder and a ram
A cylinder, a piston, storage tank and control valve

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Hydraulics and Fluid Mechanics in ME
Head developed by a centrifugal pump depends on

Both (A) and (B) above
Fluid density
Speed
Impeller diameter

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Hydraulics and Fluid Mechanics in ME
In an immersed body, center of pressure is

above the center of gravity
at the center of gravity
below be center of gravity
could be above or below e.g. depending on density of body and liquid

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Hydraulics and Fluid Mechanics in ME
The height of a water column equivalent to a pressure of 0.15 MPa is

25.3 m
45.3 m
35.3 m
15.3 m

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Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H5/2
Cd × a × √(2gH)
Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H2

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