The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

Hydraulics and Fluid Mechanics in ME
The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

wAx

wA/x

wx

wA

wAx

wA/x

wx

wA

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

Steep

First rise and then fall

Horizontal

Nearly horizontal

Steep

First rise and then fall

Horizontal

Nearly horizontal

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

9,000 kg

13,500 kg

27,000 kg

18,000 kg

9,000 kg

13,500 kg

27,000 kg

18,000 kg

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Hydraulics and Fluid Mechanics in ME
The unit discharge through the turbine is

Q/√H

Q/H

Q/H²

Q/H3/2

Q/√H

Q/H

Q/H²

Q/H3/2

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Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?

The metal piece will simply float over the mercury

Metal piece will sink to the bottom

Whole of the metal piece will be immersed with its top surface just at mercury level

The metal piece will be immersed in mercury by half

The metal piece will simply float over the mercury

Metal piece will sink to the bottom

Whole of the metal piece will be immersed with its top surface just at mercury level

The metal piece will be immersed in mercury by half

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Hydraulics and Fluid Mechanics in ME
The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)

(IG/Ax̅) - x̅

(IG/Ax̅) + x̅

(IG/x̅) - Ax̅

(Ax̅/IG) + x̅

(IG/Ax̅) - x̅

(IG/Ax̅) + x̅

(IG/x̅) - Ax̅

(Ax̅/IG) + x̅

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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

Hydraulics and Fluid Mechanics in ME When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

Hydraulics and Fluid Mechanics in ME A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

Hydraulics and Fluid Mechanics in ME The unit discharge through the turbine is

Hydraulics and Fluid Mechanics in ME A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?

Hydraulics and Fluid Mechanics in ME
The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

Hydraulics and Fluid Mechanics in ME
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

Hydraulics and Fluid Mechanics in ME
The unit discharge through the turbine is

Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?