The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)

Hydraulics and Fluid Mechanics in ME
The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)

Q = (2/3) Cd × b × √(2g) × (H22 - H12)

Q = (2/3) Cd × b × √(2g) × (H2 - H1)

Q = (2/3) Cd × b × √(2g) × (H23/2 - H13/2)

Q = (2/3) Cd × b × √(2g) × (H21/2 - H11/2)

Q = (2/3) Cd × b × √(2g) × (H22 - H12)

Q = (2/3) Cd × b × √(2g) × (H2 - H1)

Q = (2/3) Cd × b × √(2g) × (H23/2 - H13/2)

Q = (2/3) Cd × b × √(2g) × (H21/2 - H11/2)

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Hydraulics and Fluid Mechanics in ME
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

Lower than the surface of liquid

Higher than the surface of liquid

Unpredictable

The same as the surface of liquid

Lower than the surface of liquid

Higher than the surface of liquid

Unpredictable

The same as the surface of liquid

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Hydraulics and Fluid Mechanics in ME
In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than

All of these

frictional force

surface friction

viscosity

All of these

frictional force

surface friction

viscosity

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

One

Four

Two

Three

One

Four

Two

Three

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Divide

Plus

Minus

None of these

Divide

Plus

Minus

None of these

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV² / g

waV / g

waV² / 2g

waV / 2g

waV² / g

waV / g

waV² / 2g

waV / 2g

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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)

Hydraulics and Fluid Mechanics in ME If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

Hydraulics and Fluid Mechanics in ME In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than

Hydraulics and Fluid Mechanics in ME A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

Hydraulics and Fluid Mechanics in ME The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Hydraulics and Fluid Mechanics in ME The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

Hydraulics and Fluid Mechanics in ME
The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)

Hydraulics and Fluid Mechanics in ME
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

Hydraulics and Fluid Mechanics in ME
In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than

Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)