FREE Lean Six Sigma Black Belt Certification MCQ Questions and Answers


What tool would be best suited if you needed to gather data to assess the symptoms of a problem?

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Always begin with a Check Sheet when gathering data for any procedure. It is an effective method for identifying issue symptoms.

Functional requirements serve the following purposes:

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Functional requirements are used to specify the specifics of how a good or service must function.

What kind of chart would be used to examine positional, cyclical, and temporal variations?

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Multi-vari charts are the most suitable to be utilized when numerous data points relating to positional, cyclical, and temporal variations need to be evaluated.

What is the most effective method for gathering VOC data?

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Direct client data collection is always preferable, and surveys and questionnaires are effective tools for doing this.

The following are essential conditions for the successful application of Six Sigma:

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Anyone, with or without prior Six Sigma knowledge, would not be able to successfully implement a Six Sigma project without executive commitment and support.

The 6Ms, or Methods, Measurements, Machine, Man, Mother Nature, and ____________, are represented in a fishbone diagram.

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In a Fishbone Diagram, the missing "M" typically stands for "Materials." So, the 6M's in a Fishbone Diagram are:
Mother Nature

The Fishbone Diagram, also known as the Ishikawa Diagram or Cause-and-Effect Diagram, is a visual tool used to identify potential root causes of a problem or effect by organizing them into categories and displaying them in a fishbone-shaped diagram. The 6M's represent common categories of potential root causes that can be considered when analyzing a problem.

Consistent measurements produce the same values under identical conditions by _________.

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Precision refers to the degree of consistency or reproducibility in the measurements or results obtained from a process or instrument. It assesses how close repeated measurements or observations are to each other when performed under the same conditions.

The limitations of control charts are the.

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Control charts and their control limits are often referred to as the "Voice of the Process" in the context of Statistical Process Control (SPC).
Control charts are graphical tools used to monitor and track the performance of a process over time. They display the process data in a time-ordered sequence, allowing practitioners to detect patterns, trends, and deviations from the process mean. Control charts help distinguish between common cause variation (inherent in the process) and special cause variation (caused by external factors or assignable causes).

Which of the following control charts should be used to track the amount of defects across various sample sizes?

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The "U chart" control chart is best suited for tracking the prevalence of flaws across various sample sizes.

One of the things you perform during the analyze phase is:

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Analyze phase of the Six Sigma DMAIC (Define, Measure, Analyze, Improve, Control) methodology, one of the essential tasks is to establish process capability. Process capability is a measure of the ability of a process to produce output that meets customer requirements and specifications. It assesses how well the process performs within its inherent variation and whether it is capable of consistently producing products or services that meet the desired quality standards.

Mother Nature, Management, Measurement Systems, and the following four common causes are some of the primary cause categories in a Cause and Effect diagram:

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Man, material, procedures, and machines are among the primary cause categories in Cause and Effect diagrams, along with mother nature, management, and measuring systems.

What does PERT analysis serve to accomplish during the DMAIC analyze phase?

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Finding a process's critical path is the goal of program evaluation and review techniques (PERT) analysis in the DMAIC analyze phase.

Which of the subsequent Six Sigma techniques may a team use to order a list of potential improvements?

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Using the Nominal Group approach, the group can prioritize their ideas after brainstorming them.

The separation between two points is being measured by an operator. Which is most susceptible to operator influence?

Please select 2 correct answers

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The two most likely factors to be influenced by the operator when measuring the distance between two points are the precision and accuracy of the measurement.
Precision refers to the level of consistency or reproducibility in the measurements. If the operator is not consistent in the way they take the measurements, or if they are not using a precise measuring instrument, then the precision of the measurements can be affected. This can result in variation in the measurements even if the operator takes multiple measurements of the same distance.
Accuracy refers to the closeness of the measured value to the true value of the distance between the two points. If the operator is not using an accurate measuring instrument or if they are not properly calibrated, then the accuracy of the measurements can be affected. This can result in systematic errors, where the measured values are consistently higher or lower than the true value.

What does "Continuous Improvement Process" mean?

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A continuous improvement process, or CIP, is an ongoing initiative to enhance current procedures, goods, or services at regular intervals or in discrete jumps.

Who can be the process's output's recipient?

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Both internal and external customers play a significant role in ensuring the success of a business. Meeting the needs and expectations of internal customers contributes to the smooth functioning of the organization's processes, leading to better quality and efficiency. Satisfying external customers is essential for building a strong customer base, increasing customer loyalty, and maintaining a positive reputation in the market.

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