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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
When a body floating in a liquid, is displaced slightly, it oscillates about

metacentre
center of pressure
e.g. of body
center of buoyancy

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Hydraulics & Fluid Mechanics
A large Roynold number is indication of

highly turbulent flow.
turbulent flow
LAMINAR FLOW
smooth and streamline flow

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Hydraulics & Fluid Mechanics
The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe)

1/2 R
1/3 R
2/3 R
3/4 R

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Hydraulics & Fluid Mechanics
The flow which neglects changes in a transverse direction is known as

turbulent flow
one dimensional flow
uniform flow
steady flow

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Hydraulics & Fluid Mechanics
The units of viscosity are

newton-sec/metre
kg sec/metre
newton-sec/metre2
metre2/se

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