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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?

Kaplan turbine
None of these
Francis turbine
Pelton wheel

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Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Velocity of flow in an open channel
Depth of flow in an open channel
Depth of channel
Hydraulic jump

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Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

surface tension forces
viscosity
air resistance
atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
Alcohol is used in manometers because

It has low vapour pressure
It is clearly visible
It has low surface tension
It can provide longer column due to low density

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

upthrust
reaction
metacentre
buoyancy

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