While examining results of vibration analysis of a rotating piece of machinery, you find very high amplitude/displacement readings at a very high frequency at one measuring point. What would that indicate?

Correct Answer: Option B — Degradation of a ball or a roller bearing.

High-frequency, high-amplitude vibration readings are classic indicators of rolling element bearing degradation. As bearing races or balls develop pits, spalls, or cracks, they generate distinct high-frequency impacts. Vibration analysis software uses these specific frequency signatures to isolate bearing faults from other mechanical issues like misalignment or imbalance.