Six Sigma Green Belt Certification MCQs

Six Sigma Green Belt Certification MCQs

These Six Sigma Green Belt Certification multiple-choice questions and their answers will help you strengthen your grip on the subject of Six Sigma Green Belt Certification. You can prepare for an upcoming exam or job interview with these 60+ Six Sigma Green Belt Certification MCQs.
So scroll down and start answering.

1: Analysis can be done in which of the following ways?

A.   By analyzing the data collected

B.   By analyzing the process through process maps

C.   By analyzing the problems listed

D.   By analyzing the voice of the customer

2: Which of the following are the objectives of the Improve Phase?

A.   Generating a number of plausible solutions

B.   Selecting the best solutions that would improve the process

C.   Measuring the process capability

D.   Quantifying the opportunity for the project

3: What is the main purpose of brainstorming?

A.   Brainstroming acts as a solution-finder

B.   Brainstorming is used to keep all the solution-seekers indulged in searching the solution

C.   Brainstorming helps the data-collectors in collecting the required data

D.   Brainstroming acts as a tool for idea collection

4: Which tool is used to depict the changes that occur in one set of variables while changing the values of the other set of variables?

A.   Risk Priority Number

B.   HiroHotu

C.   Poka Yoke

D.   Scatter Diagram


A table shows the comparison of survey results obtained from existing and new process. Which method should be employed to determine the effect of the new process on customer satisfaction?


Pareto Analysis


Process Map




Chi-Square Test 

6: ________ is a statistical method to define how much variation exists in a set of data.

A.   Variance

B.   Standard Deviation

C.   Mean

D.   Average

7: Which control chart deals with the proportion or fraction of defective products?

A.   C-Charts

B.   P-Charts

C.   U-Charts

D.   Gantt Chart

8: Which of the following is used to implement process control to ensure that the same problems do not recur?

A.   Activity Chart

B.   Control Plan

C.   Project Management Summary

D.   Statistical Process Controls

9: Which of the following is used to eliminate an identified problem by proposing appropriate solutions?

A.   Risk Priority Number

B.   Poka Yoke

C.   Corrective Action Metrics

D.   Gantt chart


A/An ..... chart plots the probability of a certain event occurring at different places within a given time period.









11: ___ are constructed from the frequency table.

A.   Process Maps

B.   Flowcharts

C.   Histograms

D.   Trend charts

12: A systematic process to identify the needs of the customers is known as:

A.   Process Decision Program Chart

B.   Quality Function Deployment

C.   Pareto Analysis

D.   Gantt Analysis

13: The process capability index, denoted as "Cp", is preferred when

A.   Cp>1

B.   Cp<1

C.   Cp=1

D.   None of the above

14: Which of the following tools is used while illustrating a process map?

A.   Flowcharts

B.   Barcharts

C.   Runcharts

D.   Piecharts

15: Which was the first company to implement Six Sigma methodology?

A.   General electric

B.   Honeywell

C.   Motorola

D.   Cannon

A.   Affinity

B.   Pareto

C.   Matrix

D.   Run

17: Which of the following is the best definition for Define phase?

A.   The Define Phase comprises of base lining and benchmarking the process that needs improvement

B.   The Define phase invloves mentioning of the various mathematical definitions

C.   The Define phase defines the present state of the company

D.   The Define phase involves defining the standards followed by other companies


The product attributes which delight the customer and lead to high levels of satisfaction are ________, but do not cause any dissatisfaction if the product lacks this feature.









19: A/An ____ shaped matrix can relate one set of elements with itself.

A.   T

B.   L

C.   Y

D.   X


The process of calculating the total expected costs versus the total expected benefits of the actions that are performed, to choose the most profitable options is known as____________.


Experimental Design


Design of Experiments


Cost-benefit Analysis


Contingency Planning

21: For any company to reach a "level 6" sigma, there should only be .... defects per 1 million processes or opportunities.

A.   1

B.   2.2

C.   zero

D.   3.4

22: Six Sigma is used to measure the .... of a company.

A.   performance

B.   feasibility of projects

C.   growth rate

D.   processes

23: Why is the term "Voice of the Customer" in Six Sigma methodology used?

A.   To know the customers involved in the project

B.   To get feedback from the customers

C.   To know the stakeholders involved in the project

D.   To define the needs of the customer

24: Point out the symbol that represents variability in a process in Six Sigma, from the given figure:

A.   1

B.   2

C.   3

D.   4

25: The fishbone diagram is used to identify the _______ variables that are causing problems.

A.   input

B.   output

C.   continuous

D.   discrete

A.   Scatter Diagram

B.   Run Chart

C.   Poka Yoke

D.   Gantt Chart

27: Which of the following is not a tool used in the open-narrow-close approach?

A.   Clarification

B.   Duplication

C.   Multi-voting

D.   Pareto Analysis

28: Which of the following steps are used to quantify an oppurtunity in the analyze phase?

A.   Determining the performance gap

B.   Redefining the problem statement

C.   Looking at the cost of poor quality

D.   Only a,b

E.   a,b,c

F.   Only a,c

29: Which of the following is one of the fastest methods of arriving at the root cause of any problem?

A.   Process Map

B.   Process Analysis

C.   Sub Process Mapping

D.   Synopsis of Analysis Table

30: What is monitored by the Process Management Chart?

A.   Process improvements

B.   Feedback system

C.   Process standardization

D.   Critical process outputs

31: Which of the following is used to compare opposites, actions, consequences and different points of view?

A.   Bar Diagram

B.   Scatter Diagram

C.   Pareto Diagram

D.   Force Field Diagram

32: Which of the following is a tool used to determine how precise the collected data are, or how precisely the survey measures the true feelings of the whole population?

A.   Sample Survey

B.   Margin of Error

C.   Questionnaires

D.   Brainstorming

33: The Kano model of customer satisfaction depicts the relationship between:

A.   customer satisfaction and quantity

B.   customer satisfaction and time

C.   customer satisfaction and quality

D.   customer satisfaction and money

34: What is the main objective of Analyze Phase?

A.   To define the project at hand

B.   To arrive at the root cause of the problem

C.   To estimate the cash flow of the project

D.   To offer a viable solution to the problem

35: This plan states the critical parameters that require corrective action. It also contains restorative actions for known causes to problems that might surface. What is it called?

A.   Response Plan

B.   Process Control Plan

C.   Critical process outputs

D.   Risk Priority Number

36: Which of the following statements is false about SIPOC?

A.   SIPOC stands for Supplier, Input, Process, Output, Customer

B.   SIPOC diagrams are used to define the sub-processes in a business process

C.   Various examples of SIPOC software tools are iGrafx, SigmaFlow, etc

D.   SIPOC does not define the customer's requirements

37: Statistical Process Control is a method of _________, ________ and _________ a process through statistical analysis.

A.   monitoring, controlling, improving

B.   monitoring, defining, solving

C.   monitoring, improving, solving

D.   monitoring, defining, controlling

38: The Japanese name for Error-proofing is ___

A.   Poka Yoke

B.   O shin

C.   HiroHotu

D.   Hara Kiri

39: Which of the following statements is true about Multivoting?

A.   Multivoting allows the ranking of options

B.   Multivoting helps choose the options for further analysis

C.   Multivoting places the ideas found out in a structured order

D.   Multivoting is a tool for statistical process control

40: Arrange the Six Sigma methodology in chronological order:

A.   Define, Analyze, Measure, Improve, Control

B.   Define, Measure, Improve, Control, Analyze

C.   Define, Analyze, Control, Measure, Improve

D.   Define, Measure, Analyze, Improve, Control

41: What does the Diamond symbol in flowcharts depict?

A.   Start of the process

B.   Process flow

C.   Inputs of the process

D.   Decision point

42: Six Sigma process is implemented by organizations to reduce __________.

A.   defects in their processes

B.   costs of poor quality

C.   infrastructure defects

D.   process improvements

E.   employees

43: Failure modes are ranked by using the RPN. What does RPN stand for?

A.   Risk Priority Notice

B.   Revenue Priority Notice

C.   Risk Priority Number

D.   Revenue Priority Number

44: A flowchart is a _________ representation of the flow in a process.

A.   mathematical

B.   tabular

C.   pictorial

D.   none of the above

45: What defines the range of output which the process must meet, also known as specification range?

A.   Corrective Action Metrics

B.   Control charts

C.   Difference between USL and LSL

D.   Critical Process Outputs

46: Why are affinity diagrams used?

A.   To represent the ideas that are liked by all the solution-seekers

B.   To represent the brainstormed ideas

C.   To represent the data that is troublesome

D.   All of the above

47: What are Gantt Charts used for?

A.   To keep track of the time frame of a project

B.   To keep track of the expenditure of a project

C.   To keep track of the man power used for a project

D.   To keep track of the resources utilized for a project

48: Which is the tool that helps in identifying every potential failure mode of a process or a product?


B.   RPN


D.   SPC

49: C-charts, P-charts and U-charts are types of _________ control charts.

A.   attribute

B.   variable

C.   trend

D.   pareto

50: Which tool is used to identify the relevant factors of a process improvement project before work begins?

A.   Pareto Diagram

B.   Bar Chart

C.   Histogram