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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a Francis turbine runner, the numbers of blades are generally between

4 to 8
16 to 24
2 to 4
8 to 16

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Hydraulics and Fluid Mechanics in ME
Which of the following velocity potentials satisfies continuity equation ?

cosx
x2y
x2 + y2
x2-y2

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Hydraulics and Fluid Mechanics in ME
Froude's number is the ratio of inertia force to

Elastic force
Gravity force
Surface tension force
Pressure force

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Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

Venturimeter
All of these
Orifice plate
pitot tube

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

atmospheric pressure
difference of pressure between two points
very low pressure
pressure in pipes, channels etc

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Hydraulics and Fluid Mechanics in ME
Maximum impulse will be developed in hydraulic ram when

Ram chamber is large
Waste valve closes suddenly
Supply pipe is short
Supply pipe is long

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