
1. Name the parts labelled A, B and C:
A: Wall (dam)
A dam is a large structure built across a river or waterway to hold back or control the flow of water. The primary purpose of a dam is to store water for various uses such as irrigation, power generation, or flood control. Dams can be made of concrete, earth, or rock and are designed to withstand significant pressure from the water they contain. The construction of a dam often requires careful planning to ensure it does not disrupt the local ecosystem or lead to unintended consequences such as landslides or water shortages downstream.
B: Sluice gates
Sluice gates are structures built into dams or canals that allow the controlled release of water. These gates are typically adjustable, enabling operators to regulate the flow of water based on current needs or conditions, such as during floods or periods of drought. Sluice gates play an essential role in maintaining the stability of the dam and the surrounding environment by preventing the water from accumulating too much and causing structural damage. They are also used to direct water to irrigation systems, hydroelectric power plants, or other areas where the water is needed.
C: Penstock
A penstock is a large pipe or conduit that carries water from a reservoir or dam to a turbine in a hydroelectric power plant. The penstock is designed to direct the flow of water efficiently, utilizing gravity or pressure to generate kinetic energy that drives the turbine. The design and maintenance of a penstock are critical for the efficient generation of power, as any blockage or leak can reduce the effectiveness of the system. Penstocks are often made of steel or reinforced concrete to withstand the high pressure exerted by the water as it flows through the system.