A ___ is a minimum or starting point used for comparison.

A ___ is a minimum or starting point used for comparison.

• A. Line graph
• B. Service visit
• C. Baseline
• D. Vibration analysis

Answer: (C)

A baseline is the starting reference used for comparison. It captures normal operating conditions and provides a standard against which later measurements are measured. By recording typical values for parameters such as vibration, temperature, or current during normal operation, you establish a baseline. When future readings drift from this baseline, you can detect changes that may indicate developing issues and schedule maintenance before problems escalate. A line graph is simply a way to display data over time, a service visit is a maintenance activity, and vibration analysis is a diagnostic method used to gather health data—none of these by itself serves as the reference point you compare future measurements against.

A baseline is the starting reference used for comparison. It captures normal operating conditions and provides a standard against which later measurements are measured. By recording typical values for parameters such as vibration, temperature, or current during normal operation, you establish a baseline. When future readings drift from this baseline, you can detect changes that may indicate developing issues and schedule maintenance before problems escalate. A line graph is simply a way to display data over time, a service visit is a maintenance activity, and vibration analysis is a diagnostic method used to gather health data—none of these by itself serves as the reference point you compare future measurements against.