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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

4.171 H5/2
1.417 H5/2
7.141 H5/2
0.417 H5/2

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Hydraulics and Fluid Mechanics in ME
When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid

Falls on the front end
Falls on the back end
Becomes curved
Remains horizontal

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Hydraulics and Fluid Mechanics in ME
The pressure of liquid at throat in a Venturimeter is __________ than that at inlet.

None of these
Higher
Lower
Same

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Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of an impulse turbine is maximum when velocity of wheel is _______ of the jet velocity,

Three-fourth
Double
One-half
One-fourth

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Hydraulics and Fluid Mechanics in ME
The power transmitted through a pipe is (where w = Specific weight in N/m3, and Q = Discharge in m3/s)

w × Q (H + hf)
w × Q × H
w × Q (H - hf)
w × Q × hf

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Hydraulics and Fluid Mechanics in ME
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity

Three-fourth
Two-third
One-third
One-half

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