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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following is not a reaction turbine?

Journal turbine
Thomson's turbine
Pelton wheel
Fourneyron turbine

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Hydraulics and Fluid Mechanics in ME
According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

AC × √(m × i)
mi × √(A × C)
A × √(m × i)
C × √(m × i)

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Hydraulics and Fluid Mechanics in ME
In a Francis turbine runner, the numbers of blades are generally between

4 to 8
8 to 16
16 to 24
2 to 4

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Hydraulics and Fluid Mechanics in ME
In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

Two-third
Three-fourth
One-third
Equal to

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Hydraulics and Fluid Mechanics in ME
One poise is equal to

1 N-s/m2
10 N-s/m2
100 N-s/m2
0.1 N-s/m2

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Hydraulics and Fluid Mechanics in ME
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be

4 m of water column
3.5 metres of water column
2 metres of water column
3 metres of water column

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