Lean Six Sigma Yellow Belt Certification Trivia 4

Question 1

Which Lean tool uses cards or signals to authorize and control the flow of work between process steps?

Accepted Answer

Kanban

Answer

Kanban is a visual signaling system (originally using cards) that authorizes and controls the flow of materials or work, supporting just-in-time production.

Question 2

In process capability analysis, what does a Cpk value of 1.33 indicate?

Accepted Answer

The process is capable with a safety margin

Answer

A Cpk of 1.33 means the process is capable with some safety margin (equivalent to approximately 4 sigma), which is a common minimum standard for capable processes.

Question 3

What is the 'Voice of the Customer' (VoC) in Six Sigma?

Accepted Answer

The process of capturing customer requirements and expectations

Answer

Voice of the Customer (VoC) is a structured research process to capture customers' expectations, preferences, and aversions to drive process and product improvement.

Question 4

Which of the following is NOT one of the original 7 wastes (muda) identified by Toyota?

Accepted Answer

Underutilization of people

Answer

Underutilization of people (or skills) was added later as the 8th waste when Lean was adapted in the West; the original 7 Toyota wastes did not include it.

Question 5

In a control chart, what does a single data point falling outside the control limits indicate?

Accepted Answer

A potential special cause that needs investigation

Answer

A point outside control limits signals a potential special cause variation, which should be investigated and addressed — though it doesn't automatically mean the process must stop.

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Trivia 4