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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Poise is the unit of

shear stress in fluids
capillarity
viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is

dependent only on Reynolds number
a function of Reynolds number and relative roughness
dependent on relative roughness only
constant

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel is

Inward flow impulse turbine
Outward flow impulse turbine
Tangential flow impulse turbine
Inward flow reaction turbine

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Hydraulics and Fluid Mechanics in ME
The product of mass and acceleration of flowing liquid is called

Inertia force
Gravity force
Pressure force
Viscous force

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Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the gases with rise in temperature

increases
unpredictable
remains unaffected
decreases

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Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Fluid
Gas
Ideal fluid
Water

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