Six Sigma Green Belt practice exam bank
The full rehearsal: 100 exam-style questions across all five DMAIC domains, in the proportion real papers use. Every answer explained.
Get the Green Belt bank — £24 Try the free sample first
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What's inside
| Domain | Questions | What it drills |
|---|---|---|
| Define | 20 | Charters, SIPOC, CTQ trees, VOC, COPQ, stakeholder alignment |
| Measure | 20 | MSA, capability, sampling, SPC chart choice, yield metrics, data displays |
| Analyse | 20 | Hypothesis tests, p-values, correlation vs causation, root cause tools |
| Improve | 20 | DOE basics, pilots, solution selection, Lean methods, mistake-proofing |
| Control | 20 | Control plans, chart signals, reaction plans, sustainment, handover |
Why it works
- Exam-style distractors — wrong options are the classic traps (Cp vs Cpk, α vs β, precision vs accuracy), so the real paper holds no surprises.
- Worked explanations — one or two plain-English sentences per question on why the right answer is right.
- Weighted like the real thing — no over-focus on statistics; Define and Control get their fair share too.
- Instant, browser-based access — pay by card, the bank opens straight after checkout.
Sit it honestly
Use the suggested timing, answer everything before submitting, and read every explanation — including the ones you got right. Most Green Belt papers (IASSC, CSSC style) set the pass mark near 70%; the bank scores you against it the same way the free sample does.