What is the primary purpose of a suction strainer?

Answer: B — To prevent debris from entering the pump

The primary purpose of a suction strainer is to prevent debris from entering the pump. This is crucial because any foreign materials such as leaves, mud, or stones can cause significant damage to the pump components or hinder its operation, leading to inefficiencies or breakdowns. By utilizing a suction strainer, fire apparatus operators ensure a clean water supply is drawn from the source, maintaining the effectiveness and longevity of the pump. Filtering water for drinking is not within the scope of a suction strainer, as its function is strictly related to water sourced for firefighting purposes. Monitoring water temperature is not relevant to the operation of suction strainers since they do not measure or control the thermal properties of water. Increasing the water flow rate is typically a result of pump design and configuration rather than a direct function of a suction strainer, which focuses on protecting the pump rather than altering flow characteristics.