Define & Measure
38 free practice questions with explanations
PassNova has 38 free Lean Six Sigma Yellow Belt practice questions on Define & Measure, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Define & Measure: example questions & answers
Here are 6 example questions from this topic. Practise the full set of 38 free in the browser.
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Which tool is a high-level process map showing Suppliers, Inputs, Process, Outputs, and Customers?
- A Control chart
- B Fishbone diagram
- C SIPOC ✓
- D Pareto chart
Answer: SIPOC (Suppliers, Inputs, Process, Outputs, Customers) is a high-level map used in the Define phase to scope a process.
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What does 'Voice of the Customer' (VOC) refer to?
- A The supplier's delivery schedule
- B The internal opinions of the project team
- C The stated and implied needs and expectations of customers ✓
- D The regulatory requirements set by government
Answer: Voice of the Customer captures customers' stated and implied needs and expectations, which are then translated into measurable requirements.
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A document that formally authorises a project and states its problem, goal, scope, and team is called a:
- A Value stream map
- B Project charter ✓
- C Control plan
- D Standard operating procedure
Answer: The project charter formally launches an improvement project and records its problem statement, goal, scope, timeline, and team.
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A 'Critical to Quality' (CTQ) characteristic is best defined as:
- A A measurable feature of a product or service that is critical to meeting customer requirements ✓
- B The longest step in the process
- C Any defect found during inspection
- D The cheapest feature to produce
Answer: CTQs translate broad customer needs into specific, measurable characteristics that must be met to satisfy the customer.
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In the Define phase, a clearly written problem statement should avoid:
- A Stating the magnitude of the problem
- B Specifying when and where the problem occurs
- C Proposing the solution or assigning blame ✓
- D Describing the gap between current and desired performance
Answer: A good problem statement describes the problem and its impact but does not jump to a solution or assign blame.
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A value stream map differs from a basic flowchart because it also captures:
- A The company's financial statements
- B The colours used on the shop floor
- C Only the names of operators
- D Information flow and data such as cycle times and inventory ✓
Answer: A value stream map shows both material and information flow along with process data such as cycle times, lead times, and inventory levels.