In pneumatic systems, the components that manage the flow and pressure of compressed air are known as what?

• A. Valves
• B. Magnets
• C. Sensors
• D. Actuators

Answer: (D)

Valves regulate the flow and pressure of compressed air in a pneumatic system. They open, close, or throttle passages to direct air where it’s needed and to set or limit pressure, which in turn controls the speed and force of the actuators. Actuators use the pressurized air to perform work, but they don’t regulate the supply themselves. Sensors measure pressure or flow for feedback, and magnets (as part of solenoid-actuated valves) drive some valve operations, but the device that actually manages flow and pressure is the valve.