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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

10000
2100
2700
21000

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Froude's number
Euler's number
Reynold's number
Weber's number

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Hydraulics and Fluid Mechanics in ME
According to equation of continuity,

w1a1 = w2a2
a1v1 = a2v2
w1v1 = w2v2
a1/v1 = a2/v2

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

non-zero finite
minimum
maximum
zero

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

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Hydraulics and Fluid Mechanics in ME
In an isothermal atmosphere, the pressure

varies in the same way as the density
remains constant
decreases linearly with elevation
increases exponentially with elevation

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