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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
mass
energy
length

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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
Pelton wheel
None of these
Francis turbine

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Hydraulics and Fluid Mechanics in ME
The cavitation in a hydraulic machine

Causes noise and vibration of various parts
Reduces the discharge of a turbine
Causes sudden drop in power output and efficiency
All of these

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is dependent upon

Density
Flow
Pressure
Distance

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Hydraulics and Fluid Mechanics in ME
The stability of a dam is checked for

All of these
Overturning of the wall or dam
Tension at the base
Sliding of the wall or dam

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Hydraulics and Fluid Mechanics in ME
A pressure of 25 m of head of water is equal to

2500 kN/m2
245 kN/m2
25 kN/m2
2.5 kN/m2

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