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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, pressure
buoyancy, gravity
buoyancy, inertial
inertial, gravity

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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

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

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Hydraulics and Fluid Mechanics in ME
Units of surface tension are

both of the above
energy/unit area
distance
it has no units

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the regulating valve is provided on the

Suction pipe
Delivery pipe
Impeller
Casing

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Hydraulics and Fluid Mechanics in ME
Newton's law of viscosity is a relationship between

Shear stress and rate of shear strain
Rate of shear strain and temperature
Shear stress and velocity
Pressure, velocity and temperature

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Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

52.2 cm
52 cm
50 cm
51 cm

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