CLS Technology & Digital Tools 3

Question 1

Which lubrication technology uses ultrasonic detection to determine the optimal grease replenishment quantity for rolling element bearings?

Accepted Answer

Ultrasonic acoustic emission monitoring during greasing

Answer

Ultrasonic acoustic emission levels drop when a bearing is under-greased and rise when properly lubricated, then drop again at over-greasing, allowing precise replenishment.

Question 2

A facility uses oil analysis software to set alarm limits. What statistical method is BEST for setting customized limits based on a machine's own historical data?

Accepted Answer

Standard deviation-based statistical process control (SPC) limits

Answer

SPC-based limits derived from a machine's own baseline history are more sensitive to that asset's actual condition changes than generic industry limits.

Question 3

Which output parameter from a portable viscometer is most directly used to assess in-service oil degradation in a hydraulic system?

Accepted Answer

Kinematic viscosity at 40°C

Answer

Kinematic viscosity at 40°C is the primary hydraulic fluid property; significant deviation from the new-oil specification indicates degradation or contamination.

Question 4

What is the main advantage of using automated single-point lubricators with programmable timers over manual greasing routes?

Accepted Answer

They deliver consistent micro-doses of grease at set intervals regardless of operator availability

Answer

Automated single-point lubricators dispense precise grease quantities on a fixed schedule, reducing over/under-greasing errors and ensuring lubrication even when technicians cannot access points regularly.

Question 5

In an IIoT-enabled lubrication monitoring platform, what type of data integration allows oil analysis results to be automatically correlated with vibration and temperature readings?

Accepted Answer

API-based sensor data fusion from multiple condition monitoring streams

Answer

API-based data fusion connects oil analysis labs, vibration sensors, and temperature monitors into a unified dashboard, enabling holistic asset health assessment.

(CLS) Certified Lubrication Specialist Practice Test

(CLS) Certified Lubrication Specialist Practice Test

CLS Technology & Digital Tools 3