Six Sigma Green Belt Questions + Answers

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Which belt level is often a function head or department lead, can lead improvement teams, and works closely with black belts while still working a full time job?

During which phase of DMAIC is the baseline of the problem determined?

During which phase of DMAIC is the solution monitored for long-term stability

The project problem is determined in which phase of DMAIC?

What does the “W” in downtime stand for?

Which of the following would be appropriate guidance for good project selection?

What is the yield if a process is performing at a six sigma level?

Traditionally, which role helps to clear away organizational barriers?

Which of the following would be a challenge to selecting a good DMAIC project?

Which role participates on teams as needed and has a general understanding of Lean Six Sigma?

The “check” step of PDCA corresponds to which step within Toyota’s 8-step problem-solving process?

If the goal of the project is to monitor how many customers use the new website, what type of project would this be?

Which of the following is true of Lean Six Sigma projects?

Which of the following describes the type of project that would require the DMAIC method?

During which phase of DMAIC is the root cause verified

Which of the following qualifies as a way of removing the wastes of overproduction?

Which of the following are the roles that support belt levels for continuous improvements?

Which of the 8 wastes best describes multiple inspections and reviews of the same unit?

Which of the following is a primary goal of lean six sigma?

Which of the following defines the PDCA improvement cycle?

When a customer does not receive their order on time, that is most likely due to which of the 8 wastes?

If a unit moved is moved from one department to another, which of the 8 wastes best describes this scenario?

The “do” step of PDCA corresponds to which step within the DMAIC method?

All of the following could be considered when calculating the cost of poor quality (COPQ) except...?

Which of the following defines the DMAIC method?

Where did the lean six sigma belt levels originate from?

Which of the following is a good place to start when planning to improve a process?

Which of the following would make the best Lean Six Sigma project?

If a clerk is unable to complete a transaction because they have not been trained to use the cash register, which of the 8 wastes would best describe this scenario?

During which phase of DMAIC are changes to the process traditionally made?

Which of the following outlines the basic activities within the “plan” step of PDCA?

If a customer returns a product, this is most likely a result of which of the 8 wastes?

Which of the following is true about variation?

Which approach is useful when a process does not yet exist?

Which of the following best describes activities from the lean side of lean six sigma tools and concepts?

Which of the 8 wastes is defined as the excessive movement of people who work in the process?

Which of the following best describes the people listed under “c” or the consulted designation of the RACI matrix?

The team was concerned about the inefficient layout of a workspace and the resulting waste of motion. Which of the following maps would be most helpful to the team?

Which of the following tools would provide the best way to explore the downsides of not improving a process?

When introducing the meeting evaluation tool, plus deltas, what is the best way for a green belt to describe a “delta”

The scope of a project is captured by which of the following phrases?

Which of the following is a method of clarifying who is responsible for each action or decision?

Customers require “accuracy of clothing delivery” from an online retail store. Which of the following is most likely to be the specific measure of that requirement?

Which process map shows handoffs within the process?

A project team has brainstormed all the comments and opinions they’ve heard from customers. What is the next best step if they want to categorize the different kinds of customer feedback?

Which of the following results from a process (Gemba) Walk?

Which of the following is true about a Voice of the Customer (VOC) Tree Diagram?

Which of the following best describes Stakeholders?

Which two maps provide high-level views of the process?

Which of the following Charter elements describes what the Project Y is expected to achieve?

Which of the following would make the best problem statement?

Which of the following is true about Process (Gemba) Walks?

Which of the following is true regarding a value stream map?

Which of the following is a challenge during the define phase?

What will a green belt need in order to complete the problem and goal statements?

An improvement team has just conducted a Kano analysis of customer requirements. Which category should they address first?

Which of the following charter elements describes the high-level action steps for the project team?

What is the purpose of the define phase within DMAIC?

Which of the following is true regarding the tools and concepts used in the Define phase?

Which of the following best describes the Organizational level process map?

Which of the following is one of the define phase deliverables?

The communication plan includes which of the following?

What is a potential impact of not completing a project charter?

Which of the following makes the best goal statement?

What is the main goal of the Voice of the Customer (VOC) translation matrix?

A project team is working to decrease the lead time to get payroll data from the IT Department to the Human Resources Department. Which of the following describes the nature of the team’s customer?

The project Champion/Sponsor has asked for condensed project updates throughout the life of the project. What’s the best took given this request?

An improvement team has identified three key stakeholders whose support is critical to the success of the improvement project. Which of the following would be the most effective approach to gaining their support?

Which of the following is the best example of a measurable customer requirement

Which of the following is required to complete the define phase?

Which of the following modules differentiates between customer requirements that are considered “basic,” those considered “satisfiers” and those categorized as “delighters”?

Which of the following is a good guideline when conducting meetings?

After completing a Swimlane Map, the team discovered multiple handoffs between departments. Which of the 8 wastes does this describe?

Which of the following best describes the A3?

Which title designates the person who conducts the work or makes the decision on items on a RACI matrix?

Which of the following describes why the Define Phase is so important?

A green belt has recently completed a stakeholder analysis. Which of the following would make the best next step?

Which of the following statements is an example of a measurable customer requirement?

A green belt is trying to understand how many people work in the process and how long it takes to do each step. Which of the following would be the best approach?

Which of the following appears on a value stream map?

What is the translation of R=Q x A?

The project champion/sponsor has asked for condensed project updates throughout the life of the project. What’s the best tool given this request?

Which of the following is a measure phase deliverable?

Which of the following could be an input measure?

Which of the following would be included in the data box of a value stream map?

Which of the following is a challenge during the measure phase?

The net value available work time divided by the customer demand is the way to calculate which measure?

Which of the following is true about a defective unit?

Which of the following is a continuous measure?

Increasing the number of opportunities for defects when calculating a Sigma level will have what kind of impact?

What is the purpose of the measure phase within DMAIC

Which of the following statements best describes the reason Y=f(x) is important for projects?

Which of the following describes the correct steps in the measure phase?

Which of the following is required to complete the measure phase?

What is the type of Yield that is experienced by the customer?

Which of the following defines repeatability as part of measurement systems analysis (MSA)?

Which of the following modules outlines the different formats to use when collecting data manually?

Which of the following is true regarding check sheets?

A team has decided to capture cost of poor quality (COPQ) as a baseline measurement. Which of the following cost types is characteristically the least expensive?

Which of the following strategies might lead to a biased sample?

Which of the following measurement methods can help uncover process issues that impact the project Y?

What is a good definition of the measure of hotel check-in time?

Which part of the data collection plan notes the different ways to “slice” the data?

Which of the following is the best definition of Lead time?

Which of the following describes why the measure phase is important?

In the equation Y=f(x), what does x represent?

A green belt wants to pay attention to the efficiency of the process. Which of the following measures will help in that effort?

If the three steps in the process have yields of 95%, 99%, and 96% respectively, what is the rolled throughout yield?

Which of the following is a measure of effectiveness?

A green belt wants to know how long it takes to switch from making one product type to making a different product type on the same line. What is the best way to capture this on a value stream map?

Which of the following is true of continuous measures?

Which of the following operational definitions would result in the best data collect?

Which of the following establishes accuracy as part of measurement system analysis (MSA)

When the outcome of a measurement systems analysis (MSA) showed that different people measured the same unit and got the same results, the measurement system can be said to be which of the following?

Which of the following is a discrete measure?

What are the two key measurement totals at the bottom of a value stream map?

What is another name for work in progress (WIP)

Which of the following statements is true if the Takt Time is equal to 1 minute

Which of the following statements best describes the reason Y = f(x) is important for improvement projects?

The net available work time divided by the customer demand is the way to calculate which measure?


Which of the following would make the best baseline measure?


Which of the following is true regarding a box plot?

Having completed a value-added analysis of the process, which of the following best represents the green belt’s next step?

Which of the following best defines the “r value” generated when determining correlation?

While studying the process, it became evident to the team that people and equipment were not optimally positioned. Which process map would best help the team address this issue?

Which of the following is true regarding hypothesis statements?

A team lead has decided to add an inspection step to the process to catch defects. Which of the following best describes the impact of that decision?

While conducting a value-added flow analysis, the team discovered that two different departments were conducting an inspection of the same unit. Which of the following represents the most appropriate label for this step?

Which of the following best describes the advantage of the swimlane map?

A mortgage process improvement team suspects that home loans over $500,000 take longer than less expensive loans. Which of the following could help them verify this as a root cause of lengthy mortgage lead time?

A green belt wants to make use of some basic methods to test their hypothesis. Which of the following might they try first?

What is the purpose of the analyze phase within DMAIC?

Which of the following is typically associated with wait time in a value stream map?

During a value-added flow analysis, the team studied a process step where the mortgage application was approved. What is the best label for this step?

While studying the swimlane map, the team wanted to study process steps that might lead to mistakes. Which of the following would be the best place to look?

A green belt uncovered many different ways a unit could become defective and was unsure which defective type to analyze first. Which of the following charts would provide the best guidance?

Which of the following is the best method of moving from symptoms to root cause?

When listing root causes on a fishbone (cause and effect) diagram, which of the following is a good guideline?

Which of the following typically takes place in the analyze phase?

Which of the following is a valid method of proving or disproving a hypothesis?

Which of the following is a challenge during the analyze phase?

Which of the following is true about bottlenecks?

Which of the following statements describes a hypothesis statement?

If a histogram displays two modes, most frequently occurring values, what might that indicate about the data set?

Which of the following chart elements are characteristic of a histogram?

When considering the equation, y= f(x), during the analyze phase, what should be the key focus?

Which of the following describes how a fishbone (cause & effect) diagram is used in the analyze phase?

Which of the following describes why the analyze phase is important?


Which of the following statements best characterizes the reason for using a scatter plot?

A green belt would like to delve more deeply into the listed causes of the process issue in the head of the fishbone (cause & effect) diagram. Which of the following techniques would be the best next step?


If a scatter plot shows that as x increases, y decreases, what type of correlation would that illustrate?

When analyzing the value stream map, which of the following measures is a good opportunity for reduction?

A green belt wants to display the shape and center of her data. Which of the following charts would be best suited for this purpose?

Which of the following is the best way to test if there is a correlation between two variables?

Which of the following statements lists the best reasons for advancing from the analyze phase to the improve phase?

Which graph provides the best way to compare different stratifications or groups of continuous data?

Which of the following modules describe a chart or graph that displays the distribution of a data?

During a value-added flow analysis, the team studied a process step where they checked the customer’s credit. What is the best label for this step?

A hotel green belt is trying to solve the problem of rooms not being available for guest check-in. which of the following might make a good hypothesis statement?

Which of the following could represent the major root cause categories on a Fishbone (Cause & effect) diagram?

Which of the following can illustrate the most common cause of an issue?

Standard deviation is a measure that is helpful when trying to understand which aspect of process data?

Shipments were late and the team suspected the problem was filling over-sized trucks before making deliveries. What concepts would help the team given this scenario?

Supermarkets refer to what kind of Lean method?

Which of the following best defines the concept of Risk Management?

A Green Belt is trying to determine whether or not a potential process change is truly a quick win. Which of the following constitutes the best quick win criteria?

Which of the following involves removing materials or supplies that are no longer used?

Which of the following could be considered an example of a Kanban?

Which of the following takes place in the Improve phase?

Which of the following best describes the purpose of the Failure Modes and Effects Analysis (FMEA)?

Having completed a Failure Modes and Effects Analysis (FMEA), what is the next step for an improvement team?

Upon considering his solution, a Green Belt realized it was turning into a large and complex effort. Which of the following could make it more manageable?

The Lean principle of Pull is best accomplished by which of the following techniques?

Which of the following maps would be best when considering Work Cell Design?

Which of the following statements describes the best scenario for advancing from the Improve Phase to the Control Phase?

A Green Belt wants to pick the best solution options. Which of the following describes two criteria to consider first?

Which of the following is the best reason to implement Work Cell Design?

Which of the following focuses on preventing errors from happening in the first place?

When is it appropriate to reassess the makeup of the improvement team?

Which of the following describes this improvement concept?

The production team is concerned that it takes too long to reconfigure the equipment when they switch from sing-sided copies to book binding. Which of the following concepts would be most helpful given this scenario?

An improvement team wanted to determine which of their long list of potential solutions would take the least time but be the most effective. Which of the following tools best suits their needs?

Which of the following is integral to changeover reduction?

The concept of Pull is driven by which of the following?

Which of the following would be considered “hard” mistake-proofing (Poka-yoke)?

An improvement team is considering 3 different software solutions and must select the best option given the process requirements. Which of the following tools best suits their needs?

Which of the following could be a key activity during the Improve Phase?

Which of the following is part of preparing for a Full-scale rollout?

An improvement team is trying to choose between two different vendors as part of their efforts to reduce how often they run out of supplies. Which of the following would make the best criteria for their weighted criteria matrix?

Before and after photos are most commonly applied when using which of the following tools?

Which of the following is key to successful solution brainstorming sessions?

After conducting a risk assessment with the failure modes and effects analysis, the team implemented some mistake-proofing (Poka-yokes) to address the potential failures. In terms of the FMEA, what is the next step for the team?

The team cross-trained some of the intake personnel to avoid the bottleneck in production. What improvement concept was the team taking into consideration?

Which of the following is one of the core Lean principles?

Which of the following is a challenge during the Improve Phase?

What is the purpose of the Improve Phase within DMAIC?

Which of the following describes the module focused on reducing the time it takes to move from producing one type of service or product to producing a different type of service or product?

A Green Belt removed a Non-Value-Adding inspection step from the process. This was a redundant step, but there is concern that defects might still get through the process. Given the concern, which of the following is the best potential next step?

Which of the following increases the flexibility of a process?

A Green belt has decided to conduct a Rapid Improvement Event (Kaizen) in order to improve the Order Application Form. Which of the following would be critical to the success of the effort?

Which of the following visual management tools consists of a visual and potential audible alert to a problem with a call for action and response?

Which of the following could be considered “soft” Poka-yokes (mistake proofing)?

When performing a 5S, which technique would be used during the Sort step?

Wednesdays are slow at a restaurant so they instituted “free appetizers” from 4pm to 6pm. What concept where they taking into consideration?

Which of the following describes Parallel Processing?

Which type of map contains all of the planned process changes?

While conducting a Failure Modes and Effects Analysis (FMEA), a Green Belt assessed that there was no monitoring system in place to alert the team when a customer placed an order for an out-of-stock product. Which of the following describes the FMEA scale used to rate this factor?

An improvement team has decided to pilot their solution. Which of the following would make the best initial planning steps?

Which of the following is a challenge during the Control Phase?

Which of the following indicates the need for a change management effort?

A Green Belt is tracking the lead time to approve mortgages, one mortgage at time. What is the best control chart to use given this scenario?

Which of the following is part of a Response Plan?

Which Control Chart is most useful when plotting the proportion of defective invoices in a Monitoring Plan?

What Storyboard elements should be included in the Control Phase?

Which of the following statements is true regarding Response Plans?

Which of the following is the best option when there is an unacceptable amount of common cause variation in a process?

Which of the following is part of the Control Phase?

Which of the following could be included in the Monitoring Plan?

Given the improved process, if the volume goes above 300, then the manager has to bring cross-trained staff in from production. Which of the following would best characterize this plan?

Which of the following best characterizes the control limits on a control chart?

Which of the following statements are true regarding project transfer opportunities?

Which of the following actions would best support sustaining the gains of an improvement project?

If a Green Belt is building a monitoring plan for a project, which of the following questions should she ask when creating the plan?

Which of the following is the best description of the Project storyboard?

Which of the following is a signal of special cause?

Which of the following accurately describes the relationship between customer specifications and control charts?

Which of the following lists why a monitoring plan is important?

Who is responsible for maintaining the process improvement gains once the team has handed off the project?

Since the team wants to continue problem solving, which of the following would be a good way to identify the next area to improve?

Which of the following describes the advantage of using a control chart as a monitoring tool?

Which of the following is true about the control phase?

Which of the following might replace current Standard Operating Procedures (SOPs)?
Standard work

Which of the following best characterizes the concept of continual improvement?

What are the odds that a data point falls beyond the Upper or Lower Control limits?

What is the purpose of the control phase within DMAIC?

Control charts contain which of the following?

Which of the following should be included in a final storyboard?

What is the purpose of a monitoring plan?

Which of the following would be a good reason to document the project?

A Green belt wants to ensure the improved process is accepted and maintained. Which of the following would be a good change management effort?

Which of the following describes the module focused on time plots capable of distinguishing special cause variation from common cause variation?

Which of the following qualifies as an advantage of a control chart over a run chart?

Visual Management provides what kind of advantage?

An improvement team has reached their target, the process is stable, the monitoring and response plans are in place and they have documented and shared their work. What is their best next step?

A green belt has posted a control chart displaying the daily yield on the wall directly facing the process participants whose work impacts the yield. Which of the following statements best describes this technique or concept?

The existence of special cause variation in a control chart is an indication of which of the following?