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HYDRAULICS AND FLUID MECHANICS IN ME

Hydraulics and Fluid Mechanics in ME
The time oscillation of a floating body with increase in metacentric height will be

lower
lower/higher depending on weight of body
higher
same

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the head loss is same through each pipe
the discharge is same through each pipe
a trial solution is not necessary
the discharge through each pipe is added to obtain total discharge

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must fulfill the following

Newton’s law of motion
Newton’s law of viscosity
Pascal’ law
Continuity equation

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Hydraulics and Fluid Mechanics in ME
The motion of air mass in a tornado is a

free vortex motion
free vortex at center and forced vortex outside
forced vortex at center and free vortex outside
forced vortex motion

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Hydraulics and Fluid Mechanics in ME
A fluid of kinematic viscosity 0.4 cm²/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be

1 m/sec
2 m/sec
less than 1 m/sec
1.5 m/sec

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