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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Lower critical velocity
Velocity of approach
Higher critical velocity

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

Elastic force
Gravity force
Viscous force
Pressure force

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Hydraulics and Fluid Mechanics in ME
A streamline is defined as the line

along which the pressure drop is uniform
parallel to outer surface of pipe
parallel to central axis flow
of equal yelocity in a flow

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Hydraulics and Fluid Mechanics in ME
One cubic metre of water weighs

1000 liters
500 liters
100 liters
250 liters

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Hydraulics and Fluid Mechanics in ME
Centre of buoyancy always

remains above the centre of gravity
coincides with the centroid of the volume of fluid displaced
remains below the centre of gravity
coincides with the centre of gravity

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

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

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