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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

0.611 stoke
0.0611 stoke
0.0116 stoke
0.116 stoke

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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)

0.5v²/2g
0.75v²/2g
v²/2g
0.375v²/2g

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Hydraulics and Fluid Mechanics in ME
The hydraulic mean depth for a circular pipe of diameter (d) is

d/6
d/4
d/2
d

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Hydraulics and Fluid Mechanics in ME
A manometer is used to measure

Difference of pressures between two points in a pipe
Atmospheric pressure
Pressure in Venturimeter
Pressure in pipes and channels

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Hydraulics and Fluid Mechanics in ME
Cavitation is caused by

low pressure
weak material
high velocity
high pressure

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Hydraulics and Fluid Mechanics in ME
The pressure of air __________ with the increase of height from the surface of the earth.

Increases
Decreases
Does not change
None of these

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