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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Froude's number
Weber's number
Euler's number
Reynold's number

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Hydraulics and Fluid Mechanics in ME
Kinematic similarity is said to exist between the model and the prototype, if both of them

Have identical velocities
Are equal in size and shape
Are identical in shape, but differ only in size
Have identical forces

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Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Velocity of Pelton wheel to the velocity of jet
Diameter of jet to the diameter of Pelton wheel
Diameter of Pelton wheel to the diameter of jet
Velocity of jet to the velocity of Pelton wheel

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Hydraulics and Fluid Mechanics in ME
A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called

Archimedes’s principle
Pascal’s law
D-Alembert’s principle
None of these

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

rotameter
pitot tube
Venturimeter
hot wire anemometer

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Hydraulics and Fluid Mechanics in ME
Barometer is used to measure

Difference of pressure between two points
Pressure in pipes, channels etc.
Very low pressure
Atmospheric pressure

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