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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

V/T
head of water (h)
h2
h2

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Hydraulics and Fluid Mechanics in ME
High specific speed of turbine implies it is

Impulse turbine
None of the listed here
Propeller turbine
Francis turbine

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Hydraulics and Fluid Mechanics in ME
A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be

1 m
None of these
100m
10m

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Hydraulics and Fluid Mechanics in ME
A Francis turbine is used when the available head of water is

None of these
25 m to 250 m
Above 250 m
0 to 25 m

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Hydraulics and Fluid Mechanics in ME
If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by

H = Hg × hf
H = Hg/hf
H = Hg - hf
H = Hg + hf

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Hydraulics and Fluid Mechanics in ME
Low specific speed of a pump implies it is

Axial flow pump
Mixed flow pump
Centrifugal pump
None of these

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