Consider the following statements regarding uniform flow in channel :
1. The depth of flow and wetted area are constant at every section along the channel reach.
2. The velocity of flow and discharge are varying along the channel reach.
3. The total energy line, water surface and the channel bottom are all parallel.
Which of the above statements is/are correct ?
1
1 and 2
2
2 and 3
3
3 only
4
1 and 3