Which term describes the inner space that holds fuel inside the pump housing?

Which term describes the inner space that holds fuel inside the pump housing?

• A. Casing
• B. Impeller
• C. Volute
• D. Head

Answer: (C)

Volute is the spiral-shaped chamber inside the pump housing that surrounds the impeller and holds the fluid as it moves toward the discharge. After the impeller increases the fluid’s velocity, the volute captures that high-velocity flow in its expanding passage, which serves two main purposes: it contains the liquid within the housing and gradually converts the kinetic energy into pressure. This design makes the pump efficient at delivering liquid to the discharge. The casing is the overall outer shell that contains all components; the impeller is the rotating element that adds energy to the fluid; and head refers to the pressure or height the pump can push the liquid, not the space inside the housing.

Volute is the spiral-shaped chamber inside the pump housing that surrounds the impeller and holds the fluid as it moves toward the discharge. After the impeller increases the fluid’s velocity, the volute captures that high-velocity flow in its expanding passage, which serves two main purposes: it contains the liquid within the housing and gradually converts the kinetic energy into pressure. This design makes the pump efficient at delivering liquid to the discharge.

The casing is the overall outer shell that contains all components; the impeller is the rotating element that adds energy to the fluid; and head refers to the pressure or height the pump can push the liquid, not the space inside the housing.