What is the total energy required to lift wastewater from one level to another?

• A. Static head
• B. Velocity head
• C. Dynamic head
• D. Suction head

Answer: (C)

Dynamic head represents the energy carried by the moving wastewater in the system, specifically the combination of pressure energy and velocity energy that the pump must supply to push the fluid from one level to another. It captures the total energetic content available to move and lift the water, not just the vertical rise. Static head only accounts for elevation change, while velocity head is only the energy from motion. Suction head relates to the suction side conditions. Therefore, the total energy required to move the wastewater between levels is described by dynamic head.