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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

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

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Hydraulics and Fluid Mechanics in ME
The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as

turbulent flow
uniform f^w
one dimensional flow
steady flow

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Hydraulics and Fluid Mechanics in ME
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.

Sum
Ratio
Different
Product

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Hydraulics and Fluid Mechanics in ME
The center of pressure of a surface subjected to fluid pressure is the point

at which all hydraulic forces meet
on the surface at which resultant pres-sure acts
similar to metacentre
on the surface at which gravitational force acis

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and inertial force
inertial force and gravity
pressure force and inertial force
viscous force and buoyancy force

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit discharge of wheel is

0.5 m3/s
0.25 m3/s
1.5 m3/s
2.5 m3/s

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