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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.

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

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Hydraulics and Fluid Mechanics in ME
A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype ?

4 x V225 minutes
4 minutes
4 (225)1/3 minutes
4 x (225)3/2 minutes

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

pressure of the liquid displaced
viscosity of the liquid
depth of immersion
mass of liquid displaced

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Hydraulics and Fluid Mechanics in ME
The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

1
1.2
1.6
0.8

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Hydraulics and Fluid Mechanics in ME
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as

center of pressure
center of gravity
center of buoyancy
metacentre

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Hydraulics and Fluid Mechanics in ME
A one dimensional flow is one which

is uniform flow
takes place in straight lines
is steady uniform flow
involves zero transverse component of flow

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