LMC Assessment & Evaluation Methods 2

Question 1

Which tool is used to visually separate causes of a problem into major categories during a lean assessment?

Accepted Answer

Fishbone diagram

Answer

The fishbone (Ishikawa) diagram organizes root causes into categories like People, Process, Machine, and Environment.

Question 2

A lean team wants to evaluate whether a process change sustained its gains over 90 days. What is the BEST method?

Accepted Answer

Control chart tracking key metrics over time

Answer

Control charts reveal whether a process remains in statistical control and sustains improvement gains over time.

Question 3

What does 'takt time' measure in lean evaluation?

Accepted Answer

Rate of customer demand divided by available production time

Answer

Takt time = available production time ÷ customer demand rate, setting the pace the process must match.

Question 4

During a gemba walk, a lean practitioner should primarily focus on:

Accepted Answer

Observing actual work conditions and talking to frontline workers

Answer

Gemba walks emphasize going to the actual place of work to observe real conditions and engage workers directly.

Question 5

Which metric best evaluates the efficiency of a lean process by comparing value-added time to total lead time?

Accepted Answer

Process cycle efficiency (PCE)

Answer

PCE = value-added time ÷ total lead time, directly measuring how much of the total time actually adds value.

(LMC) Lean Management Certification Practice Test