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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is

0.25
None of these
1
0.5

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Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

Meters² per sec
Newton-sec per meter²
kg-sec/meter
Newton-sec per meter

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Hydraulics and Fluid Mechanics in ME
A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

Real fluid
Non-Newtonian fluid
Ideal fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Path line
Potential line
Steak line
Stream line

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Hydraulics and Fluid Mechanics in ME
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)

8μvl/wd²
32μvl/wd²
4μvl/wd²
16μvl/wd²

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

compressibility
viscosity
adhesion
cohesion

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