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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A fluid which obeys the Newton's law of viscosity is termed as

Non-Newtonian fluid
Real fluid
Ideal fluid
Newtonian fluid

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Hydraulics and Fluid Mechanics in ME
The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is (Assume that boundary layer is entirely laminar)

0.05 cm
0.20 cm
0.40 cm
0.10 cm

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Hydraulics and Fluid Mechanics in ME
Hot wire anemometer is used to measure

Pressure in gases
Liquid discharge
Pressure in liquids
Gas velocities

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Hydraulics and Fluid Mechanics in ME
The power developed by a turbine is (where H = Head of water under which the turbine is working)

Inversely proportional to H1/2
Directly proportional to H1/2
Inversely proportional to H3/2
Directly proportional to H3/2

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

cohesion
viscosity
surface tension
adhesion

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Hydraulics and Fluid Mechanics in ME
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as

steady flow
turbulent flow
one dimensional flow
uniform flow

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