To protect the pump from contaminants, a __________ is typically located near the reservoir.

• A. Strainer
• B. Filter
• C. Gauge
• D. Regulator

Answer: (A)

The protective element is a strainer. A suction strainer sits in the line feeding the pump and uses a screen to catch debris and larger particles before they can enter the pump. Placing it near the reservoir ensures any contaminants that’re picked up from the reservoir or its surroundings are filtered out right at the source, reducing the risk of impeller damage, clogging, and wear downstream. Strainers are designed for easy cleaning or replacement and are ideal for preventing contamination on the suction side of the pump. Gauges only measure pressure, regulators control pressure, and filters remove finer particles but are not the typical first line of defense placed right at the reservoir; they also may require more maintenance or be located elsewhere in the system.