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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

2H/3
H/3
H/2
3H/4

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Hydraulics and Fluid Mechanics in ME
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream

May increase/decrease
Remain constant
Keeps on decreasing
Keeps on increasing

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Hydraulics and Fluid Mechanics in ME
The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is

Inversely proportional to (radius)4
Inversely proportional to (radius)2
Directly proportional to (radius)4
Directly proportional to (radius)2

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Hydraulics and Fluid Mechanics in ME
If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is 0.5, then the kinematic viscosity of that fluid in stokes is

1
0.25
None of these
0.5

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Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML²T²
ML r²
ML°T
ML°T⁻²

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Hydraulics and Fluid Mechanics in ME
A channel is said to be of most economical cross-section, if

It has minimum wetted perimeter
It gives maximum discharge for a given cross-sectional area and bed slope
All of these
It involves lesser excavation for the designed amount of discharge

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