Lean Basics, Waste, and 5S
Lean questions test customer value, value stream thinking, common waste types, flow, pull, 5S, standardization, and visual workplace basics.
How to study for Six Sigma Green Belt
Use DMAIC as the map: define the problem and customer need, measure the process, analyze causes, improve the system, and control the gains.
Core concepts
Concept 1
Lean Basics, Waste, and 5S questions reward the answer that follows the official source, the professional role, and the stated facts.
Exam cue: Identify the candidate role, client or public risk, source rule, calculation, or process step being tested.
Concept 2
The strongest answer identifies the rule, safety concern, ethical duty, calculation, client factor, or process step before acting.
Exam cue: Check whether the fact pattern is using a national standard, jurisdiction rule, handbook policy, or scenario-specific instruction.
Concept 3
Eliminate answers that ignore requirements, skip documentation, overreach the role, or treat convenience as the standard.
Exam cue: Choose the compliant and professionally scoped answer before the convenient or familiar answer.
Risk pitfalls and guardrails
Treating related standards as interchangeable without checking the source.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Skipping screening, documentation, authorization, sanitation, recordkeeping, or other required procedure.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Choosing an answer that protects convenience instead of client safety, public protection, or the stated professional duty.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Memory anchors
Lean
Lean focuses on maximizing customer value while reducing waste.
Waste
Waste is work that consumes resources without adding customer value.
Overproduction
Overproduction creates more or earlier output than needed.
Transportation
Transportation waste is unnecessary movement of material, information, or work between locations.
Motion
Motion waste is unnecessary movement by people.
Inventory
Inventory waste ties up space, cash, and attention before the customer needs output.
5S
5S means Sort, Set in order, Shine, Standardize, and Sustain.
Flow
Flow reduces interruptions and handoff delays in the value stream.
Pull
Pull systems replenish based on demand rather than forecasts alone.
Visual Control
Visual controls make process status and abnormalities easy to see.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Producing reports before downstream users request them is which waste?
An analyst repeatedly walks to a distant shared printer. Which waste is most direct?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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