Font size
WorksheetsFlow Over Notches and Weirs
Total questions: 15
Worksheet time: 6mins
What is a notch?
A device used to measure the rate of flow of a liquid through a small channel or tank
An obstruction in an open stream over which flow takes place
The sheet of water flowing through a notch or weir
The top of the weir where water flows
What is a weir?
The sheet of water flowing through a notch or weir
An obstruction in an open stream over which flow takes place
A device used to measure the rate of flow of a liquid through a small channel or tank
The top of the weir where water flows
What is the formula for discharge over a rectangular notch or weir?
Q = (1/2)Cd.A.v
Q = Cd.d.L^2.g.H^(3/2)
Q = (8/15)Cd.2g.tan(θ).H^(5/2)
Q = (2/3)Cd.d.L^2.g.H^(3/2)
What is the apex of a notch?
The sheet of water flowing through a notch or weir
The top of the weir where water flows
The vertex of the triangular notch where angle originates
The device used to measure the rate of flow of a liquid through a small channel or tank
What is the discharge coefficient represented by 'Cd' in the formula for discharge over a notch or weir?
Coefficient of Drag
Coefficient of Diameter
Coefficient of Discharge
Coefficient of Density
What is the function of a notch?
To generate electricity
To store water for later use
To obstruct the flow of water in a river or stream
To measure the rate of flow of a liquid through a small channel or tank
What is the velocity of approach in the context of notches and weirs?
The velocity with which the water approaches or reaches the weir or notch before it flows over it
The speed at which water flows over the weir
The velocity of water exiting the weir
The velocity of water at the base of the weir
What is the purpose of a weir?
To store water for later use
To generate electricity
To obstruct the flow of water in a river or stream
To measure the rate of flow of a liquid through a small channel or tank
What is the formula for calculating the volume of water flowing through a triangular-shaped pipe?
Q = Cd.d.L^2.g.H^(3/2)
Q = (1/2)Cd.A.v
Q = (2/3)Cd.d.L^2.g.H^(3/2)
Q = (8/15)Cd.2g.tan(θ).H^(5/2)
What is the sill or crest in the context of notches and weirs?
The height of water above the sill
The top of the weir where water flows
The vertex of the triangular notch where angle originates
The device used to measure the rate of flow of a liquid through a small channel or tank
What is the difference between a notch and a weir?
A notch is used to obstruct the flow of water, while a weir is used to measure the rate of flow
A weir is used to obstruct the flow of water, while a notch is used to measure the rate of flow
There is no difference between a notch and a weir
A weir is used to generate electricity, while a notch is used to store water
What is the significance of the velocity of approach in the context of notches and weirs?
It determines the speed at which water flows over the weir
It affects the discharge rate over the notch or weir
It is used to calculate the volume of water flowing through a triangular-shaped pipe
It measures the height of water above the sill or crest
How does the shape of a notch or weir impact the discharge rate?
The shape has no impact on the discharge rate
A triangular notch allows for a higher discharge rate compared to a rectangular weir
A rectangular weir allows for a higher discharge rate compared to a triangular notch
The discharge rate is solely dependent on the velocity of approach
Why are you studying Fluid Mechanics??
It is interesting
It is compulsory to get degree
To learn and implement in real life
To get marks only
Follow over notches and wiers is same as flow in circular pipes?
Yes
No
