Dynamic total head is obtained by adding which two components?

Dynamic total head is obtained by adding which two components?

• A. Suction head and discharge head
• B. Total head and suction lift
• C. Suction lift and discharge head
• D. Dynamic head and flow rate

Answer: (C)

Dynamic total head measures the energy needed to move water from its source to the discharge point, so it combines what happens on both sides of the pump. The suction side requires lifting the water up to the pump (suction lift), and the discharge side requires lifting it to the discharge point (discharge head). You add these two amounts because the pump must supply energy to overcome elevation changes on both ends of the system, and the total energy per unit weight is the sum of those two lifts. The other options mix terms that don’t together represent the two-end energy requirement, or include flow rate, which isn’t part of the head calculation.

Dynamic total head measures the energy needed to move water from its source to the discharge point, so it combines what happens on both sides of the pump. The suction side requires lifting the water up to the pump (suction lift), and the discharge side requires lifting it to the discharge point (discharge head). You add these two amounts because the pump must supply energy to overcome elevation changes on both ends of the system, and the total energy per unit weight is the sum of those two lifts. The other options mix terms that don’t together represent the two-end energy requirement, or include flow rate, which isn’t part of the head calculation.