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Free IASSC ICGB Practice Questions & Answers 2026 Part1 | Certified Lean Six Sigma Green Belt

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Question #1
Multiple Linear Regressions (MLR) is best used when which of these are applicable? (Note: There are 3 correct answers).
A. Non-linear relationships between the inputs X's and output Y
B. Uncertainty in the slope of the linear relationship between an X and a Y
C. Relationships between Y (output) and more than one X (Input)
D. Preventing the use of a Designed Experiment if unnecessary
E. We assume that the X's are independent of each other
View answer
Correct Answer: CDE
Question #2
The use of station warning lights, tool boards and jidohka devices in the application of Lean accomplish which of these principles?
A. Pilferage Minimization
B. Visual Factory
C. Management Awareness
D. Operator Attentiveness
View answer
Correct Answer: B
Question #3
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #4
The use of Kanbans work best with pull systems for determining the timing of which products or services are produced.
A. True
B. False
View answer
Correct Answer: A
Question #5
A Stable process is a process whose output is consistent over time. A primary tool used to analyze Stability would be a ________________.
A. ag Plot
B. in/Max Plot
C. ime Series Plot
D. ata Forward Plot
View answer
Correct Answer: C
Question #6
Those who are trained to the skill levels of a Black Belt are typically utilized to apply Lean Six Sigma methodologies what percentage of their time?
A. A25%
B. B50%
C. C75%
D. D100%
View answer
Correct Answer: D
Question #7
As we calibrate our Measurement System to assure accurate data we frequently encounter Bias which is the __________________ of a measured value from the ________________ value.
A. Spread, Mean of the population
B. Deviation, hoped for
C. Deviation, true
D. Spread, idea
View answer
Correct Answer: C
Question #8
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #9
A Belt concludes a Lean Six Sigma project with the creation of a Control Plan. At what point can the Control Plan be closed?
A. Never, a Control Plan is a living document
B. As soon as the Champion signs off
C. Within 30 days of the LSS project review team meeting
D. After the project has been presented at the recognition event
View answer
Correct Answer: A
Question #10
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #11
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #12
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #13
As part of a Visual Factory plan __________ cards are created and utilized to identify areas in need of cleaning and organization.
A. anban
B. aizen
C. oke-Yoke
D. hoSai
View answer
Correct Answer: A
Question #14
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #15
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #16
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #17
Multiple Linear Regressions (MLR) is best used when which of these are applicable? (Note: There are 3 correct answers).
A. Non-linear relationships between the inputs X's and output Y
B. Uncertainty in the slope of the linear relationship between an X and a Y
C. Relationships between Y (output) and more than one X (Input)
D. Preventing the use of a Designed Experiment if unnecessary
E. We assume that the X's are independent of each other
View answer
Correct Answer: CDE
Question #18
As part of a Visual Factory plan __________ cards are created and utilized to identify areas in need of cleaning and organization.
A. Kanban
B. Kaizen
C. Poke-Yoke
D. WhoSai
View answer
Correct Answer: A
Question #19
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #20
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #21
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #22
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #23
The Lean Principle action in the 5S approach that deals with having those items needed regularly at hand and those items need less regularly stored out of the way is known as ___________.
A. Shining
B. Standardizing
C. Sustaining
D. Sorting
View answer
Correct Answer: D
Question #24
Significant variation in process performance is a consequence of several causes that can be classified using which of the terminologies shown. (Note: There are 2 correct answers).
A. Common
B. Random
C. Uneducated
D. Special
E. Vital
View answer
Correct Answer: AD
Question #25
A Lean Principle that addresses efficiency by the process worker is called ____________________?
A. Visual Factory
B. Supervising
C. Training
D. Standardizing
View answer
Correct Answer: D
Question #26
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #27
As part of a Visual Factory plan __________ cards are created and utilized to identify areas in need of cleaning and organization.
A. anban
B. aizen
C. oke-Yoke
D. hoSai
View answer
Correct Answer: A
Question #28
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #29
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #30
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #31
__________ Distributions occur when data comes from several sources that are supposed to be the same yet are not.
A. Skewed
B. Bimodal
C. Gaussian
D. Tri-peaked
View answer
Correct Answer: A
Question #32
The generation of a Regression Equation is justified when we _____________. (Note: There are 4 correct answers).
A. Expect the relationship to be Linear between the output and inputs
B. Know that there is a non-linear relationship between output and input(s)
C. Need to understand how to control a process output by controlling the input(s)
D. Experience several process defects and have no other way to fix hem
E. When it is very expensive or too late to measure the output
View answer
Correct Answer: ACDE
Question #33
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #34
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #35
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #36
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #37
While management of a company must set the stage for all improvement efforts, which of these 5S's is primarily driven by management?
A. Straighten
B. Sort
C. Shine
D. Sustain
View answer
Correct Answer: D
Question #38
Multiple Linear Regressions (MLR) is best used when which of these are applicable? (Note: There are 3 correct answers).
A. Non-linear relationships between the inputs X's and output Y
B. Uncertainty in the slope of the linear relationship between an X and a Y
C. Relationships between Y (output) and more than one X (Input)
D. Preventing the use of a Designed Experiment if unnecessary
E. We assume that the X's are independent of each other
View answer
Correct Answer: CDE
Question #39
The Regression Model for an observed value of Y contains the term ?o which represents the Yaxis intercept when X = 0.
A. True
B. False
View answer
Correct Answer: A
Question #40
When a Belt applies the practice of Poka-Yoke to a project challenge she is attempting to make certain the activity is _______________ .
A. Well documented
B. Removed from the line
C. Mistake proofed
D. Highly visible
View answer
Correct Answer: C
Question #41
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #42
Bias in Sampling is an error due to lack of independence among random samples or due to systematic sampling procedures.
A. True
B. False
View answer
Correct Answer: A
Question #43
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #44
A primary benefit of using a Multi-Vari Chart is it provides a visual presentation of two-way interactions.
A. True
B. False
View answer
Correct Answer: A
Question #45
A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.
A. SIPOC
B. Multi-Vari
C. Box Plot
D. Whisker
View answer
Correct Answer: B
Question #46
While management of a company must set the stage for all improvement efforts, which of these 5S’s is primarily driven by management?
A. Straighten
B. Sort
C. Shine
D. Sustain
View answer
Correct Answer: D
Question #47
Select all the statements that are true after reviewing the Capability Analysis shown here. (Note:There are 4 correct answers).
A. The process is out of Control
B. The process is properly assumed to be a Normal process
C. The Mean of the process moving range is 1
D. This Capability Analysis used subgroups
E. Majority of the dimensional values are outside of the tolerance than within
View answer
Correct Answer: BCDE
Question #48
The Regression Model for an observed value of Y contains the term ?o which represents the Yaxis intercept when X = 0.
A. True
B. False
View answer
Correct Answer: A
Question #49
Typically a person who is trained to the skill level of a Black Belt is nearly 80% dedicated to applying Lean Six Sigma methodologies towards process solutions.
A. rue
B. alse
View answer
Correct Answer: B
Question #50
A periodic time frame can be used to arrange for Control Limit and Center Line calculations with good SPC implementation in a process.
A. True
B. False
View answer
Correct Answer: A

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