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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

None of these
More than 2800
Between 2000 and 2800
Less than 2000

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Hydraulics and Fluid Mechanics in ME
The power produced by the reaction turbine is ________ to the head of water.

None of these
Inversely proportional
Directly proportional
4th power

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

ω².r²/4g
ω².r²/2g
ω.r/4g
ω.r/2g

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Hydraulics and Fluid Mechanics in ME
Euler's equation in the differential form for the motion of liquids is given by

dp/ρ - g.dz + v.dv = 0
dp/ρ + g.dz + v.dv = 0
ρ.dp + g.dz + v.dv = 0
ρ.dp - g.dz + v.dv = 0

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Hydraulics and Fluid Mechanics in ME
In a lock-gate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and α = Inclination of the gate with the normal to the side of the lock)

2p/sinα
2p/sin (α/2)
p/sinα
p/2sinα

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Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

Less than
Same as
More than
None of these

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