Certified Reliability Leader (CRL) Practice Test

Which method measures elevated levels of friction due to poor lubrication?

1. Fluid analysis

2. Vibration analysis

3. Ultrasound testing

4. Thermographic inspection

The correct answer is: Ultrasound testing

The method that effectively measures elevated levels of friction due to poor lubrication is ultrasound testing. This approach utilizes high-frequency sound waves to detect anomalies in the operating conditions of machinery. When there is insufficient lubrication, friction increases, resulting in noise that generates ultrasonic waves. By capturing and analyzing these ultrasonic signals, technicians can identify areas where lubrication may be inadequate, allowing for timely maintenance interventions to prevent further wear or potential equipment failure. This ability to detect issues before they escalate is critical in reliability engineering, as it helps in maintaining optimal operating conditions and enhancing the overall reliability of equipment. Other methods like fluid analysis, vibration analysis, and thermographic inspection have different focuses and may not directly measure friction or lubrication levels as effectively as ultrasound testing does.