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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

0.0611 stoke
0.611 stoke
0.0116 stoke
0.116 stoke

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Hydraulics and Fluid Mechanics in ME
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is

None of these
0.25
0.5
1

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Hydraulics and Fluid Mechanics in ME
If V1 and V2 are the velocities of water at inlet and outlet of the draft tube respectively, then the efficiency of a draft tube is

(V­1 - V2) / V1
(V­1² - V2²) / V1²
V1² / (V1² - V2²)
V1 / (V1 - V2)

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Hydraulics and Fluid Mechanics in ME
The pressure of a liquid measured with the help of a Piezometer tube is

Vacuum pressure
Absolute pressure
Atmospheric pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
One liter of water occupies a volume of

100 cm3
250 cm3
500 cm3
1000 cm3

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

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

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