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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the turbines?

Air lift pump
Jet pump
Reciprocating pump
Centrifugal pump

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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

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

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Hydraulics and Fluid Mechanics in ME
For hypersonic flow, the Mach number is

greater than 4
greater than unity
unity
greater than 2

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

None of these
A paraboloid
A triangle
An ellipse

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Hydraulics and Fluid Mechanics in ME
For small discharge at high pressure, following pump is preferred

Reciprocating
Mixed flow
Axial flow
Centrifugal

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Hydraulics and Fluid Mechanics in ME
Impulse turbine is generally fitted

Little above the tail race
At the level of tail race
Slightly below the tail race
About 2.5 m above the tail race to avoid cavitations

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