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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The speed of an imaginary turbine, identical with the given turbine, which will develop a unit power under a unit head, is known as

None of these
Normal speed
Unit speed
Specific speed

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Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the summit
At any point between inlet and outlet
At the inlet
At the outlet

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Hydraulics and Fluid Mechanics in ME
A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be

2 m/sec
1 m/sec
less than 1 m/sec
1.5 m/sec

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Hydraulics and Fluid Mechanics in ME
For 450 m head of water, _________ shall be used.

Kaplan turbine
Pelton wheel
Francis turbine
None of these

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Hydraulics and Fluid Mechanics in ME
For centrifugal pump impeller, the maximum value of the vane exit angle is

25° to 30°
10° to 15°
15° to 20°
20° to 25°

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Hydraulics and Fluid Mechanics in ME
A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

None of these
Coincides with
Lies above
Lies below

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