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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

viscosity
atmospheric pressure
surface tension forces
air resistance

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

adhesion
surface tension
viscosity
cohesion

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

Remain unaffected
Decrease
May increase or decrease depending on the characteristics of liquid
Increase

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Hydraulics and Fluid Mechanics in ME
Multistage centrifugal pumps are used to

All of these
Give high discharge
Produce high heads
Pump viscous fluids

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

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

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Hydraulics and Fluid Mechanics in ME
The runaway speed of a hydraulic turbine is the speed

At which there will be no damage to the runner
At full load
At which the turbine will run freely without load
Corresponding to maximum overload permissible

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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