Which of the following is a sign of potential mechanical issues in equipment?

Excessive vibration in equipment is a significant indicator of potential mechanical issues. When machinery operates normally, it produces a certain level of vibration that is expected and acceptable. However, when the vibrations become excessive, it can suggest that components are misaligned, worn, or damaged, and that there may be a problem with balance, mounting, or structural integrity.

This excessive vibration can lead to further mechanical breakdown if not addressed promptly. Therefore, it serves as an important warning sign for engineers and operators to investigate and mitigate the underlying issues.

Regular operational sounds are part of normal function and do not typically indicate problems unless they change or become irregular. Low energy costs generally suggest efficient operation, reflecting a well-functioning system rather than potential issues. Rising steam levels can be part of normal operational behavior in some contexts but may also indicate other issues, although they are not as direct a warning sign as excessive vibration.