Which statement about condition monitoring in CBM is true?

• A. They require dismantling the machine to check internal parts.
• B. They rely on subjective impressions without data.
• C. They rely on direct measurement of operating condition to predict failures.
• D. They replace the need for lubrication.

Answer: (C)

Condition monitoring in CBM is about collecting real operating data to predict when a component will fail. By tracking indicators like vibration, temperature, oil condition, and wear debris, you create a health snapshot and look for trends that hint at impending problems. This data-driven approach lets you schedule maintenance before a failure happens, reducing downtime and extending equipment life. It doesn’t require dismantling the machine just to check internals, and it relies on objective measurements rather than subjective impressions. Also, lubrication isn’t replaced by CBM; monitoring can help optimize lubrication schedules, but lubrication itself remains necessary.