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A submerged weir is one in which the water level on the down streams side of the weir is :
- a)Just at the crest level
- b)below the crest level
- c)above crest level
- d)at the same elevation as water surface on upstream
Correct answer is option 'C'. Can you explain this answer?
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A submerged weir is one in which the water level on the down streams ...
When the water level on the downstream side of a weir is above the top surface of the weir, it is known as the submerged or drowned weir, as shown in the figure. The total discharge over such a weir is found out by splitting up the height of the water, above the sill of the weir, into two portions.
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A submerged weir is one in which the water level on the down streams ...
Definition of a Submerged Weir
A submerged weir is a hydraulic structure that alters the flow of water in rivers, canals, or other water bodies. Its classification as "submerged" is based on the water levels on either side of the weir.
Understanding Water Levels
- Crest Level: The top edge of the weir where water flows over.
- Upstream Water Level: The height of the water before it reaches the weir.
- Downstream Water Level: The height of the water after it flows over the weir.
Key Characteristics of Submerged Weirs
- For a weir to be classified as submerged, the water level on the downstream side must be above the crest level.
- This condition leads to:
- Stable Flow: The flow is controlled and managed efficiently due to the increased head on the downstream side.
- Increased Flow Rate: Water flows over the weir influenced by the head difference, resulting in greater discharge.
Importance of Submerged Weirs
- Flood Control: Helps in managing high water levels and mitigating potential flooding.
- Irrigation: Assists in maintaining water levels necessary for agricultural fields.
- Aquatic Habitats: Creates diverse ecosystems by altering flow patterns.
In summary, a submerged weir is defined by the condition that the downstream water level is above the crest level, which significantly influences its operational characteristics and applications in hydraulic engineering.
A submerged weir is a hydraulic structure that alters the flow of water in rivers, canals, or other water bodies. Its classification as "submerged" is based on the water levels on either side of the weir.
Understanding Water Levels
- Crest Level: The top edge of the weir where water flows over.
- Upstream Water Level: The height of the water before it reaches the weir.
- Downstream Water Level: The height of the water after it flows over the weir.
Key Characteristics of Submerged Weirs
- For a weir to be classified as submerged, the water level on the downstream side must be above the crest level.
- This condition leads to:
- Stable Flow: The flow is controlled and managed efficiently due to the increased head on the downstream side.
- Increased Flow Rate: Water flows over the weir influenced by the head difference, resulting in greater discharge.
Importance of Submerged Weirs
- Flood Control: Helps in managing high water levels and mitigating potential flooding.
- Irrigation: Assists in maintaining water levels necessary for agricultural fields.
- Aquatic Habitats: Creates diverse ecosystems by altering flow patterns.
In summary, a submerged weir is defined by the condition that the downstream water level is above the crest level, which significantly influences its operational characteristics and applications in hydraulic engineering.
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A submerged weir is one in which the water level on the down streams side of the weir is :a)Just at the crest levelb)below the crest levelc)above crest leveld)at the same elevation as water surface on upstreamCorrect answer is option 'C'. Can you explain this answer?
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A submerged weir is one in which the water level on the down streams side of the weir is :a)Just at the crest levelb)below the crest levelc)above crest leveld)at the same elevation as water surface on upstreamCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A submerged weir is one in which the water level on the down streams side of the weir is :a)Just at the crest levelb)below the crest levelc)above crest leveld)at the same elevation as water surface on upstreamCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A submerged weir is one in which the water level on the down streams side of the weir is :a)Just at the crest levelb)below the crest levelc)above crest leveld)at the same elevation as water surface on upstreamCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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