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Hydraulics and Fluid Mechanics in ME

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

Euler's number
Weber's number
Froude's number
Reynold's number

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Hydraulics and Fluid Mechanics in ME
A Piezometer tube is used only for measuring

Low pressure
Moderate pressure
High pressure
Vacuum pressure

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Hydraulics and Fluid Mechanics in ME
A pitot tube is used to measure the

Discharge through a pipe
Total pressure of liquid flowing in a pipe
Pressure difference between two points in a pipe
Velocity of flow at the required point in a pipe

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Hydraulics and Fluid Mechanics in ME
A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

None of these
Equal to
Less than
More than

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Hydraulics and Fluid Mechanics in ME
The ratio of absolute viscosity to mass density is known as

coefficient of viscosity
viscosity index
specific viscosity
kinematic viscosity

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Hydraulics and Fluid Mechanics in ME
The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by

2V/(vr - v)
V/(vr + v)
V/(vr - v)
2V/(vr + v)

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