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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
0.0116 stoke
0.116 stoke
0.611 stoke

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Hydraulics and Fluid Mechanics in ME
The loss of pressure head in case of laminar flow is proportional to

(Velocity)4
Velocity
(Velocity)3
(Velocity)2

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Hydraulics and Fluid Mechanics in ME
An average value of coefficient of velocity is

0.62
0.97
0.84
0.76

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece is

0.375
0.855
0.707
0.5

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

midway between rear and front of body
at the extreme rear of body
any where between rear and front of body depending upon Reynolds number
at the extreme front of body

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Hydraulics and Fluid Mechanics in ME
The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

wH
wH2/2
wH/2
wH2/4

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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