How can excessive noise from equipment be reduced?

The option that suggests using sound barriers or maintaining equipment properly addresses two effective methods for reducing excessive noise from equipment. Sound barriers can physically block or absorb sound waves, preventing them from traveling and reaching areas where noise could be disruptive. Proper maintenance of equipment ensures that it operates efficiently and quietly, as worn components or misalignments can increase noise levels significantly. Regularly lubricating moving parts, tightening loose fittings, and replacing worn-out parts can help maintain a quieter operation.

Increasing the engine power could potentially lead to louder operation because more power often results in higher noise levels. Allowing equipment to idle can increase noise without any operational benefit, as the equipment is still running but not performing useful work. While replacing older machines with newer models might contribute to noise reduction, this is not a guaranteed solution since some new models can also be loud depending on their design and intended use. Thus, employing sound barriers and maintenance stands out as a proactive and practical approach to effectively managing and reducing noise levels produced by equipment.