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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
According to fan laws, for the fans having constant wheel diameters, the power demand varies

Square of fan speed
Square root of fan speed
Directly as fan speed
Cube of fan speed

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Hydraulics and Fluid Mechanics in ME
The hydraulic gradient line lies over the centre line of the pipe by an amount equal to the

Velocity head
Pressure head + velocity head
Pressure head
Pressure head - velocity head

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

atmospheric pressure
difference of pressure between two points
very low pressure
pressure in pipes, channels etc

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Hydraulics and Fluid Mechanics in ME
A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will

Float over fluid
Be fully immersed with top surface at fluid surface
Partly immersed
Sink to bottom

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

gravity, viscous and turbulent
gravity, pressure and turbulent
gravity, pressure and viscous
pressure, viscous and turbulent

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure at sea level is

760 mm of mercury
103 kN/m2
All of these
10.3 m of water

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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