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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the water level on the downstream side of a weir is above the top surface of a weir, the weir is known as

Narrow-crested weir
Broad-crested weir
Submerged weir
Ogee weir

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

Liquid discharge
Pressure in gases
Pressure in liquids
Gas velocities

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Hydraulics and Fluid Mechanics in ME
In the case of steady flow of a fluid, the acceleration of any fluid particle is

variable
constant
zero under limiting conditions
zero

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

tanθ = a2/2g
tanθ = a/g
tanθ = a/2g
tanθ = 2 a/g

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Hydraulics and Fluid Mechanics in ME
Fluid is a substance which offers no resistance to change of

Volume
Flow
Pressure
Shape

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Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

dependent on the flow
a physical property of the fluid.
a function of temperature only
independent of the flow

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