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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the liquid enters the pump

At the bottom
At the canter
At the top
From sides

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine ___ with the increase in unit speed.

Decreases
None of the listed here
Remain same
Increases

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Hydraulics and Fluid Mechanics in ME
The hydraulic mean depth or the hydraulic radius is the ratio of

Velocity of flow and area of flow
Wetted perimeter and diameter of pipe
Area of flow and wetted perimeter
None of these

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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.

Coincides with
None of these
Lies above
Lies below

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

None of the listed here
Impulse turbine
Propeller turbine
Francis turbine

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Hydraulics and Fluid Mechanics in ME
The efficiency of a Pelton wheel working under constant head ________ with the increase in power.

Remain same
Decreases
None of these
Increases

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