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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Hydrometer is used to determine

specific gravity of gases
relative humidity
specific gravity of liquids
specific gravity of solids

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Hydraulics and Fluid Mechanics in ME
Piezometer is used to measure

Difference of pressure between two points
Atmospheric pressure
Very low pressures
Pressure in pipe, channels etc

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

Less than 2000
None of these
Between 2000 and 2800
More than 2800

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body is called

buoyancy
center of pressure
upthrust
all the above are correct

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Hydraulics and Fluid Mechanics in ME
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.34 times
0.81 times
0.67 times
0.95 times

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Hydraulics and Fluid Mechanics in ME
Surge wave in a rectangular channel is an example ofi) steady flowii) unsteady flowiii) uniform flowiv) non-uniform flowThe correct answer is

(i) and (iv)
(ii) and (iv)
(ii) and (iii)
(i) and (iii)

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