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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 5
(D/2d) + 15
(D/2d) + 10
(D/2d) + 20

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Hydraulics and Fluid Mechanics in ME
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

0.8
1.6
1
1.2

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Hydraulics and Fluid Mechanics in ME
A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

Lies between the centre of buoyancy and centre of gravity
Lies below its centre of gravity
Coincides with its centre of gravity
Lies above its centre of gravity

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Hydraulics and Fluid Mechanics in ME
The value of friction factor ‘f’ for smooth pipes for Reynolds number 106 is approximately equal to

0.0001
0.1
0.01
0.001

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Hydraulics and Fluid Mechanics in ME
The pressure at a point 4 m below the free surface of water is

19.24 kPa
39.24 kPa
29.24 kPa
49.24 kPa

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

None of the listed here
Francis turbine
Propeller turbine
Impulse turbine

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