Which sign indicates excessive supply pressure may be harmful to a pneumatic system?

Which sign indicates excessive supply pressure may be harmful to a pneumatic system?

• A. Increased wear, higher energy use, and noisier operation
• B. Reduced wear and lower energy use
• C. No change in performance
• D. Increased cooling

Answer: (A)

Excess supply pressure in a pneumatic system puts more stress on components, leading to faster wear, higher energy consumption, and louder operation. When pressure is higher than what parts are designed to handle, seals and moving parts experience greater forces, which accelerates wear and can degrade performance. The compressor may have to work harder to deliver the required flow, increasing energy use, and the higher-velocity air and actuation can produce more noise. That combination—more wear, more energy use, and more noise—aligns with how systems behave under excessive pressure. The other statements don’t fit: reduced wear and lower energy use would imply healthier operation at the correct pressure, no change in performance isn’t accurate if pressure is too high, and increased cooling is not a standard sign of harmful excess pressure.

Excess supply pressure in a pneumatic system puts more stress on components, leading to faster wear, higher energy consumption, and louder operation. When pressure is higher than what parts are designed to handle, seals and moving parts experience greater forces, which accelerates wear and can degrade performance. The compressor may have to work harder to deliver the required flow, increasing energy use, and the higher-velocity air and actuation can produce more noise.

That combination—more wear, more energy use, and more noise—aligns with how systems behave under excessive pressure. The other statements don’t fit: reduced wear and lower energy use would imply healthier operation at the correct pressure, no change in performance isn’t accurate if pressure is too high, and increased cooling is not a standard sign of harmful excess pressure.