Which filtration option is located at the pump's suction line?

• A. Pressure line filtration
• B. Return line filtration
• C. Filters
• D. Suction filtration (correct)

Answer: (D)

Filtration on the suction line is placed at the pump intake, so fluid is cleaned before it ever enters the pump. This protects the pump from ingesting dirt and debris that could clog suction passages, cause cavitation, or increase wear, which helps maintain smooth flow and reliable operation. The other locations serve different protection roles: a pressure-line filter sits downstream of the pump to keep the system’s outlets clean; a return-line filter cleans fluid as it returns to the reservoir; and a general “filters” option is too vague and doesn’t specify where in the circuit the filtering happens.