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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

rotation
velocity of fluid
flow
absolute pressure

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Open channel/pipe flow
Conservation of mass
Compressibility of fluids
Steady/unsteady flow

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

midway between rear and front of body
any where between rear and front of body depending upon Reynolds number
at the extreme front of body
at the extreme rear of body

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Hydraulics and Fluid Mechanics in ME
Specific weight of water in S.I. units is equal to

9.81 xlO3 N/m3
1000 N/m3
9.81 xlO6 N/m3
10000 N/m3

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV / g
waV² / 2g
waV² / g
waV / 2g

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Hydraulics and Fluid Mechanics in ME
The viscosity of a gas

is independent of pressure for very high pressure intensities
decreases with increase in temperature
is independent of temperature
increases with increase in temperature

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