Lean Six Sigma Green Belt Certification FREE LSSGB Questions and Answers 3

Question 1

What does the 'Control' phase of DMAIC primarily aim to achieve?

Accepted Answer

Sustain improvements over time

Answer

The Control phase implements monitoring systems and control plans to ensure that process improvements are maintained long-term.

Question 2

Which Lean tool uses a visual board to limit work-in-progress and improve flow?

Accepted Answer

Kanban

Answer

Kanban uses visual boards with WIP limits to manage workflow, reduce bottlenecks, and improve throughput.

Question 3

In a control chart, what do points outside the upper and lower control limits indicate?

Accepted Answer

Special cause variation

Answer

Points beyond control limits signal special cause variation, indicating an assignable factor is affecting the process beyond normal randomness.

Question 4

What is the formula for calculating Defects Per Million Opportunities (DPMO)?

Accepted Answer

(Defects / (Units x Opportunities)) x 1,000,000

Answer

DPMO is calculated by dividing the number of defects by the total opportunities (units multiplied by opportunities per unit) and multiplying by one million.

Question 5

Which of the following best describes 'muda' in Lean methodology?

Accepted Answer

Any activity that consumes resources without creating value

Answer

Muda refers to waste — any activity or process step that uses resources but does not add value from the customer's perspective.

Lean Six Sigma Green Belt Certification Practice Test

Lean Six Sigma Green Belt Certification Practice Test

Lean Six Sigma Green Belt Certification FREE LSSGB Questions and Answers 3