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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The Francis formula for the discharge over Cipoletti weir is

1.84 LH5/2
1.84 LH1/2
1.84 LH3/2
1.84 LH

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies

Square of fan speed
Square root of fan speed
Cube of fan speed
Directly as fan speed

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Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Inlet guide blades
Backward curved blades
Adjustable blades
Vaned diffusion casing

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Hydraulics and Fluid Mechanics in ME
A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be

None of these
1 m
100m
10m

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

adhesion
cohesion
viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
The absolute pressure is equal to

Atmospheric pressure - gauge pressure
Gauge pressure + atmospheric pressure
Gauge pressure - atmospheric pressure
Gauge pressure - vacuum pressure

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