CLL Performance Metrics & Continuous Improvement 2

Question 1

Which metric best measures the effectiveness of a pull system in lean manufacturing?

Accepted Answer

Work-in-process (WIP) inventory levels

Answer

WIP inventory levels directly indicate how well a pull system controls flow by limiting work to actual downstream demand.

Question 2

A lean team notices their Takt time is 45 seconds but cycle time is 60 seconds. What is the most appropriate corrective action?

Accepted Answer

Reduce waste or add resources to bring cycle time to 45 seconds

Answer

When cycle time exceeds Takt time, the process cannot meet customer demand, so waste must be eliminated or capacity increased.

Question 3

What does a 'red-yellow-green' (traffic light) visual metric dashboard primarily support?

Accepted Answer

At-a-glance performance management and quick problem identification

Answer

Traffic light dashboards use color coding so teams can immediately spot performance deviations without reading detailed reports.

Question 4

In a continuous improvement culture, what is the primary purpose of a gemba walk?

Accepted Answer

To observe actual work conditions and identify improvement opportunities firsthand

Answer

A gemba walk brings leaders to where value is created to observe real conditions, ask questions, and find waste directly.

Question 5

Which continuous improvement tool is best suited for prioritizing which defect types to address first?

Accepted Answer

Pareto chart

Answer

A Pareto chart ranks defects by frequency so teams can focus on the vital few causes that account for most problems.

(CLL) Certified Lean Leader Practice Test