The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

(2/3) Cd × L. √2g [H15/2 - Ha5/2]

(2/3) Cd × L. √2g [H13/2 - Ha3/2]

(2/3) Cd × L.√2g [H12 - Ha2]

(2/3) Cd × L.√2g [H1 - Ha]

(2/3) Cd × L. √2g [H15/2 - Ha5/2]

(2/3) Cd × L. √2g [H13/2 - Ha3/2]

(2/3) Cd × L.√2g [H12 - Ha2]

(2/3) Cd × L.√2g [H1 - Ha]

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Hydraulics and Fluid Mechanics in ME
When the Mach number is less than unity, the flow is called

Sonic flow

Sub-sonic flow

Hyper-sonic flow

Super-sonic flow

Sonic flow

Sub-sonic flow

Hyper-sonic flow

Super-sonic flow

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Hydraulics and Fluid Mechanics in ME
When a body is placed over a liquid, it will float if

None of these

Gravitational force is less than the up-thrust of the liquid

Gravitational force is more than the up-thrust of the liquid

Gravitational force is equal to the up-thrust of the liquid

None of these

Gravitational force is less than the up-thrust of the liquid

Gravitational force is more than the up-thrust of the liquid

Gravitational force is equal to the up-thrust of the liquid

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

tanθ = a2/2g

tanθ = a/g

tanθ = 2 a/g

tanθ = a/2g

tanθ = a2/2g

tanθ = a/g

tanθ = 2 a/g

tanθ = a/2g

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a pressure gauge is called

Absolute pressure

Atmospheric pressure

Mean pressure

Gauge pressure

Absolute pressure

Atmospheric pressure

Mean pressure

Gauge pressure

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of viscosity

Newton's law of resistance

Newton's law of cooling

Newton's law of motion

Newton's law of viscosity

Newton's law of resistance

Newton's law of cooling

Newton's law of motion

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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

Hydraulics and Fluid Mechanics in ME When the Mach number is less than unity, the flow is called

Hydraulics and Fluid Mechanics in ME When a body is placed over a liquid, it will float if

Hydraulics and Fluid Mechanics in ME An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

Hydraulics and Fluid Mechanics in ME The pressure measured with the help of a pressure gauge is called

Hydraulics and Fluid Mechanics in ME The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

Hydraulics and Fluid Mechanics in ME
When the Mach number is less than unity, the flow is called

Hydraulics and Fluid Mechanics in ME
When a body is placed over a liquid, it will float if

Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a pressure gauge is called

Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called