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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as

Manometric efficiency
Mechanical efficiency
Volumetric efficiency
Overall efficiency

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Hydraulics and Fluid Mechanics in ME
Froude's number is the ratio of inertia force to

Pressure force
Surface tension force
Gravity force
Elastic force

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Hydraulics and Fluid Mechanics in ME
Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is

nearly half
slightly less
slightly more
equal

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the elastic force is called

Reynold's number
Froude's number
Mach number
Weber's number

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Hydraulics and Fluid Mechanics in ME
Barometer is used to measure

Atmospheric pressure
Very low pressure
Pressure in pipes, channels etc.
Difference of pressure between two points

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