Previous Year Question
Which of the following is not correctly matched?
Dams — Rivers
Grand Coulee — Columbia
Hoover — Tennessee
Nurek — Vakhsh
Cahora (Coborra) Bassa — Zambezi
Correct Answer: B
Detailed Solution
The Grand Coulee Dam is situated on the Columbia River in Washington State, United States. It is a large multipurpose dam used for hydropower generation, irrigation and flood control, among other purposes.
The Hoover Dam is not situated on the Tennessee River; it is built on the Colorado River. It lies near the Arizona–Nevada border, and Lake Mead is the reservoir formed behind it. Therefore, the Hoover–Tennessee pair is incorrect.
The Nurek Dam is situated on the Vakhsh River in Tajikistan. It is a massive earth-fill dam and plays an important role in Tajikistan's hydroelectric power system. The Vakhsh later joins the Panj and forms part of the Amu Darya river system.
The Cahora Bassa Dam is situated on the Zambezi River in Mozambique. The Cahora Bassa reservoir formed behind it is one of the large artificial reservoirs of Southern Africa and is important for hydroelectric power generation.