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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Reynold's number
Froude's number
Weber's number
Euler's number

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Hydraulics and Fluid Mechanics in ME
The velocity of the liquid flowing through the divergent portion of a Venturimeter

Depends upon mass of liquid
Increases
Decreases
Remains constant

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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

33.3 kN
3.53 kN
35.3 kN
None of these

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Air lift pump
Hydraulic press
Hydraulic coupling
Jet pump

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

Gravity force
Viscous force
Elastic force
Surface tension force

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Hydraulics and Fluid Mechanics in ME
The depth ā€˜d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)

0.223 D
0.423 D
0.707 D
0.577 D

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