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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
A fluid in equilibrium can't sustain

Shear stress
Bending stress
Tensile stress
Compressive stress

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Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

air resistance
viscosity
surface tension forces
atmospheric pressure

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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
21000
2100
2700

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Four times
Sixteen times
Double
Eight times

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to surface Jension is known as

Reynold’s number
Weber’s number
Froude number
Mach number

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