Question

Which of the following statements about dams is/are correct?

1.A dam always refers to a concrete or structural wall built to block water.

2.Spillways in dams help in regulating water flow, either intermittently or continuously,

3.Dams can be classified based on structure, purpose, and height.

• A. Both 1 and 2
• B. Both 2 and 3
• C. Both 1 and 3
• D. 1, 2 and 3 all are correct

Answer 1

Answer:

B. Both 2 and 3

• Definition of a Dam: A dam is not exclusively a concrete wall; it is a barrier constructed across a stream, river, or waterway to impound water. Depending on the site and materials available, dams can be classified as earthen (embankment), rock-fill, timber, or masonry dams, not just concrete structures.

• Function of Spillways: Spillways are critical safety components of a dam designed to release excess water from the reservoir. They prevent the dam from overtopping, which could lead to structural failure. They may operate intermittently during flood events or continuously depending on reservoir management protocols.