A pump produces __________.

A pump is primarily designed to move fluids from one location to another, which is why the correct answer focuses on flow. In the context of pump operation, flow refers to the volume of fluid that the pump can move within a specific period. This is a fundamental aspect of pump operation because the primary function of a pump is to create a sufficient flow rate to meet system requirements.

While it is true that pumps can also generate pressure, their primary role in a system is to facilitate flow. Pressure can be a byproduct of the flow process, but it isn't the primary output or the main purpose of the pump itself. Certain conditions, such as resistance from a system or elevation changes, can influence the pressure developed by the pump, but it remains secondary to the function of creating movement through flow.

In summary, the key focus of a pump is on its ability to produce and maintain flow, making this the correct answer.