If the energy grade line and hydraulic grade line are drawn for flow through an inclined pipeline the following four quantities can be directly observed:
1. Static head
2. Friction head
3. Datum head
4. Velocity head
Starting from the arbitrary datum line, the above types of heads will be in the sequence
a) 3,2,1,4 b) 3,4,2,1
c) 3,4,1,2 d) 3,1,4,2