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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H2
Cd × a × √(2gH)
Cd × a × √(2g) × H5/2

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Hydraulics and Fluid Mechanics in ME
Pascal-second is the unit of

surface tension
pressure
dynamic viscosity
kinematic viscosity

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

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

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Hydraulics and Fluid Mechanics in ME
The cavitation in a hydraulic machine

Reduces the discharge of a turbine
Causes sudden drop in power output and efficiency
Causes noise and vibration of various parts
All of these

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m”

at mean sea level
All listed here
at normal pressure of 760 mm
at 4°C temperature

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Hydraulics and Fluid Mechanics in ME
The flow in which each liquid particle has a definite path and their paths do not cross each other is called

turbulent flow
uniform flow
one dimensional flow
streamline flow

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