The elementary profile of a dam is generally a ____

The maintenance of the reservoirs, above _________ Ha comes under irrigation department.

Field channels are also known as __

The angle of internal friction for water is ______

Which of the following forces do not act on the dam?

In sliding failure, the co-efficient of friction varies from ____

To ensure economy in dam sections, the __ should be minimum.

By providing __________ gully formation can be avoided.