Hydraulics and Fluid Mechanics in ME
Alcohol is used in manometers because

It has low surface tension
It is clearly visible
It can provide longer column due to low density
It has low vapour pressure

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

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 enters the wheel at the outer periphery and then flows towards the centre of the wheel
The water flows parallel to the axis of the wheel

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe or channel is said to be non-uniform when

Each liquid particle has a definite path
The liquid particles at different sections have different velocities
The quantity of liquid flowing per second is constant
The liquid particles at all sections have the same velocities

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