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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

kg-sec/meter
Newton-sec per meter²
Meters² per sec
Newton-sec per meter

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Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the inlet
At the outlet
At any point between inlet and outlet
At the summit

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Hydraulics and Fluid Mechanics in ME
The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.

Less than
None of these
Equal to
More than

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

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

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Hydraulics and Fluid Mechanics in ME
Choose the wrong statement. Alcohol is used in manometer, because

Its density is less
Its vapour pressure is low
It provides longer length for a given pressure difference
It provides suitable meniscus for the inclined tube

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Hydraulics and Fluid Mechanics in ME
The loss of head at entrance in a pipe is (where v = Velocity of liquid in the pipe)

0.375v²/2g
0.5v²/2g
0.75v²/2g
v²/2g

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