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Hydraulics and Fluid Mechanics in ME

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)

p/2sinα
2p/sin (α/2)
2p/sinα
p/sinα

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Hydraulics and Fluid Mechanics in ME
The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

None of these
Does not effect
Effects
Both A and B

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Hydraulics and Fluid Mechanics in ME
A Francis turbine is used when the available head of water is

Above 250 m
25 m to 250 m
None of these
0 to 25 m

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Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

inclined U-tube
micro-manometer with water
U-tube with water
U-tube with mercury

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV / 2g
waV² / 2g
waV² / g
waV / g

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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

ω.r/2g
ω.r/4g
ω².r²/4g
ω².r²/2g

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