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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When time of closure tc = L/v0 (where L is length of pipe and v0 is speed of pressure wave), the portion of pipe length subjected to maximum head is

L
L/2
L/4
L/3

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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
uniform
laminar
steady state

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Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the Newtonian fluid is

Linear
Parabolic
Hyperbolic
Inverse type

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Hydraulics and Fluid Mechanics in ME
The Francis formula for the discharge over Cipoletti weir is

1.84 LH
1.84 LH5/2
1.84 LH1/2
1.84 LH3/2

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Hydraulics and Fluid Mechanics in ME
The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

1/√2
43832
√2
1

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Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.585 a.√(2gH)
1.855 aH.√(2g)
5.85 aH.√(2g)
0.855 a.√(2gH)

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