Question

Nagarjuna Sagar Dam generates which type of electricity?
A. Thermal power
B. Wind power
C. Nuclear power
D. Hydroelectric power

Answer 1

Hint:The Nagarjuna Sagar dam was constructed between 1955 and 1967. It straddles the border between Guntur district in Andhra Pradesh and Nalgonda district in the state of Telangana. This dam is the world’s largest masonry dam.

Complete answer: Nagarjuna Sagar dam is built across the Krishna River and is one of the biggest manmade reservoirs in the world. The Nagarjuna Sagar Dam generates electricity through hydroelectricity, which is basically rainwater or river water stored in dams that are made to fall from heights. Inside the dam, the falling water flows through pipes over turbine blades placed at the bottom of the dam. Then the generator is turned by these moving blades which in turn produces electricity. The discharged water after the generation of electricity is used for irrigation. One-fourth part of the world’s electricity is produced by hydel power. Paraguay, Norway, Brazil, and China are the leading producers of hydel power in the world. Bhakra Nangal, Gandhi Sagar, Nagarjuna Sagar, and Damodar valley projects are some of the important hydel power stations in India.

Thus, option (D) is correct.

Additional information Being one of the earliest multi-purpose irrigation and hydroelectric power projects in the country, a large number of initiatives were taken by the Government to achieve the goals of the Green Revolution in India. It was officially inaugurated by then Honourable Prime Minister Jawaharlal Nehru on 10th December 1955.

Note:The height of the Nagarjuna Sagar dam is 124 m and the length is 1 Km. It has 26 gates and it provides many districts like Nalgonda, Guntur, Suryapet, Prakasam, etc. with irrigation water along with electricity.