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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Twice the depth
Half the breadth
Twice the breadth
Half the depth

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Hydraulics and Fluid Mechanics in ME
The force present in a moving liquid is

All of these
Viscous force
Gravity force
Inertia force

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Hydraulics and Fluid Mechanics in ME
The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

3.0 m
4.0 m
2.5 m
2.4 m

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Hydraulics and Fluid Mechanics in ME
Differential manometer is used to measure

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

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

One-half
Three fourth
Double
Equal to

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Hydraulics and Fluid Mechanics in ME
Metacentric height for small values of angle of heel is the distance between the

centre of gravity and metacentre
centre of gravity and centre of buoy-ancy
free surface and centre of buoyancy
centre of buoyancy and metacentre

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