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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine ___ with the increase in unit speed.

None of the listed here
Decreases
Remain same
Increases

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Hydraulics and Fluid Mechanics in ME
The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

(H - hf )/H
(H + hf )/H
H/(H - hf )
H/(H + hf )

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Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

0.855 a.√(2gH)
1.855 aH.√(2g)
5.85 aH.√(2g)
1.585 a.√(2gH)

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

turbulent flow
uniform flow
steady flow
laminar flow

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Hydraulics and Fluid Mechanics in ME
The product of mass and acceleration of flowing liquid is called

Gravity force
Pressure force
Viscous force
Inertia force

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Hydraulics and Fluid Mechanics in ME
A structure, whose width is __________ the width of the channel, is called a flumed structure.

Equal
Less than
None of these
More than

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