Hydraulics and Fluid Mechanics in ME
The undershot water wheels are those in which

The wheel runs entirely by the weight of water
None of these
The wheel runs partly by the weight of water and partly by the impulse of water
The wheel runs entirely by the impulse of water

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Hydraulics and Fluid Mechanics in ME
The total energy of a liquid particle in motion is equal to

Kinetic energy - (pressure energy + potential energy)
Pressure energy - (kinetic energy + potential energy)
Potential energy - (pressure energy + kinetic energy
Pressure energy + kinetic energy + potential energy

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