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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The total energy line lies over the centre line of the pipe by an amount equal to

Pressure head
Pressure head - velocity head
Pressure head + velocity head
Velocity head

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Hydraulics and Fluid Mechanics in ME
A flow is called sub-sonic, if the Mach number is

More than 6
Less than unity
Between 1 and 6
Unity

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for 0 to 25 m head of water?

Kaplan turbine
Francis turbine
None of these
Pelton wheel

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Hydraulics and Fluid Mechanics in ME
The speed of a pressure wave through a pipe depends upon

the original head
the viscosity of fluid
the bulk modulus for the fluid
the length of pipe

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Hydraulics and Fluid Mechanics in ME
An air vessel is provided at the summit in a siphon to

Increase velocity
Increase discharge
Maintain pressure difference
Avoid interruption in the flow

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Hydraulics and Fluid Mechanics in ME
A thick liquid like syrup has a ___ viscosity than a light liquid like water.

Greater
Same
Lesser
None of the listed here

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