The specific energy of flow is the energy per unit weight of water with respect to the channel bottom as datum. As level of the channel bottom goes down, ____________.

The specific energy of flow is the energy per unit weight of water with respect to the channel bottom as datum. As level of the channel bottom goes down, ____________.

1. specific energy is not depended on depth
2. specific energy increases              (Ans)
3. specific energy constant
4. specific energy decreases