Previous Year Question
Which one of the following pairs is not correctly matched regarding peculiarities of Ramganga project?
Dam's length — 825.8 metres
Hydropower generation capacity — 198 MW
Location — Garhwal (Uttarakhand)
Irrigated area — 6 lac hectares
Correct Answer: A
Detailed Solution
Option (a) is not correctly matched. Under the Ramganga Project, the Kalagarh Dam is situated on the Ramganga River in Pauri Garhwal district of Uttarakhand. The National Register of Large Dams of the Central Water Commission gives the height of Ramganga Dam as 128 metres and its length as 715 metres. Therefore, 825.8 metres is not the correct length of the dam.
Ramganga is a multipurpose project, whose major objectives include irrigation, hydroelectric generation and flood control. The dam was constructed during 1961–74, creating the large Ramganga reservoir. CWC data record its gross storage at about 2.196 BCM.
Option (b) is correctly matched. The installed capacity of the Ramganga Hydroelectric Power Station is 198 MW. It has three units of 66 MW each (3 × 66 MW). The Power House is situated at the toe of the dam and uses vertical-shaft Francis turbines.
Option (c) is also correct. The power station is located at Kalagarh, Pauri Garhwal, Uttarakhand. It is a reservoir-based scheme on the Ramganga River and is situated near the Jim Corbett region.
Option (d) is also correct. According to the Uttar Pradesh Ramganga Basin Plan, the project provides irrigation water to about 6,00,000 hectares of agricultural land. An older government account gives its irrigation benefit as about 0.575 million hectares; thus, the 6 lakh hectare figure used in the examination is a rounded figure.