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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
All the terms of energy in Bernoulli’s equation have dimension of

work
length
energy
mass

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Hydraulics and Fluid Mechanics in ME
The specific speed of a hydraulic turbine depends upon

Speed and head of water
Speed and power developed
Speed, power developed and head of water
Discharge and power developed

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Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

independent of the flow
dependent on the flow
a physical property of the fluid.
a function of temperature only

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Hydraulics and Fluid Mechanics in ME
A channel is said to be of most economical cross-section, if

It gives maximum discharge for a given cross-sectional area and bed slope
It involves lesser excavation for the designed amount of discharge
All of these
It has minimum wetted perimeter

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Hydraulics and Fluid Mechanics in ME
The volume of a fluid __________ as the pressure increases.

Remains same
None of these
Decreases
Increases

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Equal to
Three fourth
One-half
Double

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