Which mutes noise?

Which mutes noise?

• A. Regulator
• B. Lubricator
• C. Muffler
• D. Filter

Answer: (C)

Noise reduction from exhaust in pneumatic systems is achieved best with a muffler. A muffler quiets the escaping air by guiding it through porous material and internal baffling that dissipates sound energy and cools the gas, smoothing the jet as it exits. This lowers the peak sound levels near valves and actuators. Other components have different jobs: regulators adjust and stabilize pressure, lubricators add oil to moving parts, and filters remove contaminants. While important for performance and longevity, they do not primarily mute exhaust noise. So, for silencing exhaust, the muffler is the right choice.

Noise reduction from exhaust in pneumatic systems is achieved best with a muffler. A muffler quiets the escaping air by guiding it through porous material and internal baffling that dissipates sound energy and cools the gas, smoothing the jet as it exits. This lowers the peak sound levels near valves and actuators. Other components have different jobs: regulators adjust and stabilize pressure, lubricators add oil to moving parts, and filters remove contaminants. While important for performance and longevity, they do not primarily mute exhaust noise. So, for silencing exhaust, the muffler is the right choice.