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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow in which __________ force is dominating over the viscosity is called turbulent flow.

Viscous
Surface tension
Inertia
Elastic

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m3

At mean sea level
At normal pressure of 760 mm
All of the listed here
At 4°C temperature

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Hydraulics and Fluid Mechanics in ME
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.

Equal to
One-third
One-fourth
One-half

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

Inversely proportional
None of these
Equal to
Directly proportional

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Hydraulics and Fluid Mechanics in ME
A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is

215.5 r.p.m.
275.4 r.p.m
241.5 r.p.m.
175.4 r.p.m.

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

viscosity index
specific viscosity
kinematic viscosity
coefficient of viscosity

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