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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Fluid is a substance which offers no resistance to change of

Volume
Shape
Flow
Pressure

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Hydraulics and Fluid Mechanics in ME
The maximum discharge over a broad crested weir is

0.384 Cd × L × H3/2
1.71 Cd × L × H1/2
1.71 Cd × L × H3/2
0.384 Cd × L × H1/2

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Hydraulics and Fluid Mechanics in ME
According to Bazin's formula, the discharge over a rectangular weir is mL2g x H3/2 where m is equal to

0.405 + (0.003/H)
0.405 + (H/0.003)
0.003 + (H/0.405)
0.003 + (0.405/H)

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Hydraulics and Fluid Mechanics in ME
General energy equation holds for

steady flow
non-uniform flow
turbulent flow
laminar flow

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Hydraulics and Fluid Mechanics in ME
According to fan laws, at constant speed and capacity, the pressure and power vary

As square of density
Directly as the air or gas density
Inversely as density
Inversely as square root of density

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Hydraulics and Fluid Mechanics in ME
The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is

Slow speed with radial flow at outlet
High speed with axial flow at outlet
High speed with radial flow at outlet
Medium speed with radial flow at outlet

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