0 votes 0 votes For a given discharge in an open channel, there are two depths which have the same specific energy. These two depths are known as alternate depths critical depths normal depths sequent depths Water Resources Engineering gate2018-ce-2 water-resources-engineering hydraulics energy-depth-relationships + – gatecse asked Feb 17, 2018 • recategorized Nov 18, 2020 by soujanyareddy13 gatecse 4.0k points answer See all 0 reply