What can be a consequence of neglecting maintenance in pneumatic systems?

Neglecting maintenance in pneumatic systems often leads to higher operational costs. When systems are not properly maintained, parts can wear out more quickly, leading to more frequent repairs or replacements. Additionally, inefficiencies can arise from failing components or accumulating dirt and moisture, causing the system to work harder to achieve the same performance levels. This increases energy consumption, as the system may require more pneumatic pressure to function efficiently. Over time, these factors accumulate, resulting in significantly higher costs for operations, repairs, and energy usage.

In contrast, the other choices misrepresent the outcomes of neglecting maintenance. For example, increased efficiency or lower noise levels would typically be associated with well-maintained systems rather than neglected ones. Similarly, longer life expectancy of components is directly tied to regular maintenance, making it unlikely in a poorly maintained system.