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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the flow in an open channel is gradually varied, the flow is said to be

Steady non-uniform flow
Unsteady uniform flow
Steady uniform flow
Unsteady non-uniform flow

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

Mach number
Reynold's number
Froude's number
Weber's number

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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

uniform
laminar
steady state
quasi static

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Hydraulics and Fluid Mechanics in ME
Specific weight of water in S.I. units is equal to

1000 N/m3
9.81 xlO3 N/m3
9.81 xlO6 N/m3
10000 N/m3

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Hydraulics and Fluid Mechanics in ME
A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension)

4wd/σ cosα
4σ cosα/wd
σ cosα/4wd
wd/4σ cosα

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Hydraulics and Fluid Mechanics in ME
Low specific speed of turbine implies it is

Propeller turbine
Any one of the above
Impulse turbine
Francis turbine

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