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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/sinα
p/2sinα
2p/sinα
2p/sin (α/2)

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Hydraulics and Fluid Mechanics in ME
According to equation of continuity,

a1/v1 = a2/v2
w1a1 = w2a2
a1v1 = a2v2
w1v1 = w2v2

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Hydraulics and Fluid Mechanics in ME
The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is

ρ ω2 r2/4
ρ ω2 r2/2
ρ ω2 r2
2ρ ω2 r2

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Hydraulics and Fluid Mechanics in ME
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

0.95 times
0.67 times
0.34 times
0.81 times

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Hydraulics and Fluid Mechanics in ME
Equation of continuity is based on the principle of conservation of

momentum
None of these
mass
energy

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Hydraulics and Fluid Mechanics in ME
The unit speed of the turbine runner is

N/H3/2
N/H²
N/√H
N/H

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