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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

Increases
None of these
Decreases
Remain same

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Hydraulics and Fluid Mechanics in ME
When the flow parameters at any given instant remain same at every point, then flow is said to be

quasi static
steady state
uniform
laminar

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Froude's number
Euler's number
Weber's number
Reynold's number

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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)

p/sinα
p/2sinα
2p/sin (α/2)
2p/sinα

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Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

None of these
Velocity of approach
Lower critical velocity
Higher critical velocity

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Hydraulics and Fluid Mechanics in ME
The pressure intensity in kN/m2 (or kPa) at any point in a liquid is (where w = Specific weight of liquid, and h = Depth of liquid from the surface)

w
wh
w/h
h/w

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