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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

lift
boundary layer
drag
wake

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Hydraulics & Fluid Mechanics
Flow of water in a pipe about 3 meters in diameter can be measured by

pitot tube
rotameter
orifice plate
venturi

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Hydraulics & Fluid Mechanics
Mercury is often used in barometer because

both (B) and (C)
its vapour pressure is so low that it may be neglected
the height of barometer will be less
it is the best liquid

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Hydraulics & Fluid Mechanics
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

specific weight
specific density
specific gravity
specific mass

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Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the

center of the volume of floating body
centroid of the volume of fluid vertically above the body
centriod of the displaced volume of fluid
center of gravity of any submerged body

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Hydraulics & Fluid Mechanics
The Prartdtl mixing length is

zero at the pipe wall
independent of shear stress
None of these
maximum at the pipe wall

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