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

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Hydraulics and Fluid Mechanics in ME
The most efficient section of a channel is

Square
Rectangular
Triangular
Trapezoidal

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Hydraulics and Fluid Mechanics in ME
Which of the following is dimensionless?

Specific volume
Specific weight
Specific gravity
Specific speed

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

ρ ω2 r2
ρ ω2 r2/4
2ρ ω2 r2
ρ ω2 r2/2

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the regulating valve is provided on the

Impeller
Casing
Suction pipe
Delivery pipe

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?

Kaplan turbine
Francis turbine
None of these
Pelton wheel

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