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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 LH3/2
1.84 LH
1.84 LH1/2

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

0.707 a. √2gH
√2gH
0.855 a. √2gH
0.5 a. √2gH

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Hydraulics and Fluid Mechanics in ME
Which of the following statement is correct as regard to water wheels?

All of these
They give constant efficiency, even if the discharge is not constant
They have slow speeds
They are suitable even for low water heads

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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

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

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Say bolt
Engler
Orsat
Red wood

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Hydraulics and Fluid Mechanics in ME
An object having 10 kg mass weighs 9.81 kg on a spring balance. The value of 'g' at this place is

10 m/sec²
9.75 m/sec²
9.81 m/sec²
9 m/sec

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