Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator normally consists of

Two coaxial rams and two cylinders
A cylinder and a ram
A cylinder, a piston, storage tank and control valve
Two cylinders, two rams and a storage device

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Hydraulics and Fluid Mechanics in ME
In an outward flow reaction turbine

The water enters the wheel at the outer periphery and then flows towards the centre of the wheel
The flow of water is partly radial and partly axial
The water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
The water flows parallel to the axis of the wheel

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Hydraulics and Fluid Mechanics in ME
In open channels, the specific energy is the

Total energy per unit discharge
Total energy measured with respect to the datum passing through the bottom of the channel
Total energy measured above the horizontal datum
Kinetic energy plotted above the free surface of water

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