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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
According to Bernoulli's equation

Z + p/w + v²/2g = constant
Z - p/w - v²/2g = constant
Z - p/w + v²/2g = constant
Z + p/w - v²/2g = constant

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Hydraulics and Fluid Mechanics in ME
The flow rate in gear pump

More or less remains constant with increase in pressure
Increases with increase in pressure
Decreases with increase in pressure
Unpredictable

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Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of pressure
center of gravity
center of buoyancy
water surface

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at constant rate is called

Unsteady uniform flow
Steady uniform flow
Unsteady non-uniform flow
Steady non-uniform flow

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

First rise and then fall
Horizontal
Steep
Nearly horizontal

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Inlet of draft rube
Penstock
Blade inlet
Guide blade

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