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Hydraulics and Fluid Mechanics in ME

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

1
None of these
0.5
0.25

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Hydraulics and Fluid Mechanics in ME
Which of the following meters is not associated with viscosity

Say bolt
Engler
Orsat
Red wood

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Hydraulics and Fluid Mechanics in ME
A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

(bd²/12) + x̅
(d²/12 x̅) + x̅
d²/12 + x̅
b²/12 + x̅

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Hydraulics and Fluid Mechanics in ME
The flow ratio in case of Francis turbine varies from

0.4 to 0.5
0.6 to 0.9
1 to 1.5
0.15 to 0.3

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Hydraulics and Fluid Mechanics in ME
Medium specific speed of a pump implies it is

Mixed flow pump
Axial flow pump
Centrifugal pump
Any one of the above

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Hydraulics and Fluid Mechanics in ME
The dynamic viscosity of gases __________ with rise in temperature.

Decreases
Remain unaffected
None of these
Increases

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