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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is

3.53 kN
33.3 kN
None of these
35.3 kN

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Hydraulics and Fluid Mechanics in ME
The centre of gravity of the volume of the liquid displaced is called

Centre of pressure
Metacentre
Centre of buoyancy
None of the listed here

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

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

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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

Nearly horizontal
Steep
First rise and then fall
Horizontal

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Hydraulics and Fluid Mechanics in ME
The hydraulic mean depth or the hydraulic radius is the ratio of

Area of flow and wetted perimeter
None of these
Velocity of flow and area of flow
Wetted perimeter and diameter of pipe

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Hydraulics and Fluid Mechanics in ME
The pressure of liquid at throat in a Venturimeter is __________ than that at inlet.

Lower
Higher
Same
None of these

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