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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The total pressure on an immersed surface inclined at an angle θ with the liquid surface is

wA
wAx/sinθ
wAx
wx

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Hydraulics and Fluid Mechanics in ME
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)

(1 + cos φ)/2
(1 + sin φ)/2
(1 - sin φ)/2
(1 - cos φ)/2

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Hydraulics and Fluid Mechanics in ME
Gradually varied flow is

steady non-uniform
non-steady uniform
steady uniform
non-steady non-uniform

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

rotation
velocity of fluid
flow
absolute pressure

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Hydraulics and Fluid Mechanics in ME
Coefficient of velocity of venturimeter

None of these
decreases with higher Reynolds number
is independent of Reynolds number
is equal to the coefficient of discharge of venturimeter

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Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

Maximum
Zero
Minimum
None of these

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