Which term describes the total pressure of liquid entering the pump?

Which term describes the total pressure of liquid entering the pump?

• A. Discharge Pressure
• B. Intake Pressure
• C. Net Head
• D. Suction Head

Answer: (D)

The total pressure of liquid entering the pump is described by suction head. This term captures the energy the liquid brings into the pump on the inlet side, expressed as the height of a column of liquid that would exert that pressure. It includes the static head (related to the vertical distance to the liquid surface) and the velocity head of the fluid as it approaches the pump. The pump has to overcome this suction head to draw the liquid in. Discharge pressure refers to the outlet side, not the inlet. Net head is the difference between the discharge and suction heads, representing the head added by the pump itself. So suction head best describes the total pressure at the pump’s inlet.

The total pressure of liquid entering the pump is described by suction head. This term captures the energy the liquid brings into the pump on the inlet side, expressed as the height of a column of liquid that would exert that pressure. It includes the static head (related to the vertical distance to the liquid surface) and the velocity head of the fluid as it approaches the pump. The pump has to overcome this suction head to draw the liquid in. Discharge pressure refers to the outlet side, not the inlet. Net head is the difference between the discharge and suction heads, representing the head added by the pump itself. So suction head best describes the total pressure at the pump’s inlet.