Which of the following terms is used to identify the pressure of a liquid entering a centrifugal pump?

Correct Answer: Option B — Suction head

Suction head is the pressure measured at the pump suction nozzle, representing the energy available to the pump inlet. It is a critical parameter for calculating Net Positive Suction Head (NPSH), which is essential for preventing cavitation and ensuring the reliable operation of centrifugal pumps in marine piping systems.