Explain the purpose of a weir in a diversion headwork.
Control of Water Level: A weir increases the level of a river or channel , generating a head that makes it easier to divert water into a reservoir or canal.
Water flow is regulated by altering the peak's height, which guarantees a consistent & regulated supply for irrigation or other purposes.
Control of Sediment: The weir reduces the amount of silt that enters the canal and preserves its efficiency by slowing the water flow and allowing sediment to settle upstream.
Flood Control: The weir helps control surplus water during high flow situations by channeling it into overflow channels to stop flooding downstream.
The weir is an essential part of Irrigation Engineering and diversion because of these purposes.
How does a roller-compacted concrete (RCC) dam differ from a conventional concrete dam?
How is the thermal expansion of concrete considered in the design and analysis of a concrete dam?
Explain the concept of offsets in chain surveying.
What is strriup ?What is the function of strriup?
Describe Lacey’s theory of uniform flow and its significance.
Define a weir and its function in water management.
What are the benefits of canal lining in irrigation?
How do you calculate the runoff coefficient for a given area?
Differentiate between creep and shrinkage of concrete.
What is chain surveying?
