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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For manometer, a better liquid combination is one having

surface tension is no criterion
high density and viscosity
lower surface tension
higher surface tension

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the __________ is called Euler's number.

Surface tension force
Elastic force
Viscous force
Pressure force

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Hydraulics and Fluid Mechanics in ME
The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is

600 kg/m3
200 kg/m3
800 kg/m3
400 kg/m3

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

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure with rise in altitude decreases

unpredictable
first slowly and then steeply
first steeply and then gradually
linearly

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Hydraulics and Fluid Mechanics in ME
Hot wire anemometer is used to measure

Liquid discharge
Gas velocities
Pressure in gases
Pressure in liquids

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