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Free IASSC ICYB Practice Questions & Answers 2026 Part2 | Certified Lean Six Sigma Yellow Belt

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Question #1
When a process has proven itself to function at a Six Sigma level this means there are less than ________ defects per million opportunities.
A.
B.
C.
D. 0
View answer
Correct Answer: C
Question #2
The essence of Lean is to concentrate effort on ____________________ while improving processflow to achieve speed and agility at lower cost.
A. efect removal
B. emoving waste
C. vertime reduction
D. ework reduction
View answer
Correct Answer: B
Question #3
When we create a Process Map and want to depict an action step in the process we would use the ____________ symbol.
A. Diamond
B. Circle
C. Ellipse
D. Rectangle
View answer
Correct Answer: D
Question #4
When we create a Process Map we use a ____________ to show the direction of work flow.
A. Solid line arrow
B. Dashed line arrow
C. Series of dots
D. Double lines
View answer
Correct Answer: A
Question #5
Y, the output of a process, is the ______________ variable while Xn, the various inputs to a process, are the _____________ variables.
A. AIndependent, dependent
B. BIndividual, multiple
C. CSole, multiple
D. DDependent, independent
View answer
Correct Answer: D
Question #6
When we create a Process Map and want to depict an action step in the process we would use the ____________ symbol.
A. Diamond
B. Circle
C. Ellipse
D. Rectangle
View answer
Correct Answer: D
Question #7
When we create a Process Map we use a ____________ to show the direction of work flow.
A. Solid line arrow
B. Dashed line arrow
C. Series of dots
D. Double lines
View answer
Correct Answer: A
Question #8
To minimize waste through the application of Lean Principles we do which of the following?
A. Collect sample data
B. Keep the work area clean and organized
C. Calibrate our measurement tools
D. Survey the customer
View answer
Correct Answer: B
Question #9
When a Belt wishes to clarify the activities of various departments in a Process Map she is creating she adds a feature to the map called ______________.
A. Department Dividers
B. Passing Lanes
C. Swim Lanes
D. Responsibility Paths
View answer
Correct Answer: C
Question #10
The purpose of a ___________ is to identify the complexity of the process and to assist in identifying critical steps in the process.
A. Pareto Chart
B. Process Map
C. Kanban
D. Kaizen event
View answer
Correct Answer: B
Question #11
To reduce the people or operator introduced defects into a process it is best if a Belt can design and implement a means of ________________ into the process.
A. AMeasurement automation
B. BOperator alertness
C. CFull Automation
D. DConstant supervision
View answer
Correct Answer: C
Question #12
Al bought a handheld GPS from his local electronics store. When he entered an address it would not function. For the manufacturer of the GPS this would be categorized as what type of cost?
A. Internal Failure Cost
B. Prevention Cost
C. External Failure Cost
D. Appraisal Cost
View answer
Correct Answer: C
Question #13
As we attempt to find a commonality of terms to assess the performance of a broad range of processes we use a key metric called the DPMO which stands for __________________________?
A. Delayed production metrics output
B. Defects by management oversight
C. Defects per million opportunities
D. Developed production management oversight
View answer
Correct Answer: C
Question #14
During the Process Discovery activity of the Measure Phase our team uses a ___________________ to brainstorm concerning all the potential things that could impact the output of the process we are investigating.
A. In a remote location
B. In a local location
C. Within arm's reach
D. In a storage area
View answer
Correct Answer: B
Question #15
A concept that addresses the consistency of process workers is called ________?
A. Cp & Cpk > 1
B. Cp & Cpk >2
C. Cp >1
D. Cp >2
View answer
Correct Answer: D
Question #16
A tool we use to identify possible failures (defects) in our process and the impact they may have is the _______________.
A. Shewhart Analysis
B. Juran Journey
C. FMEA
D. SIPOC
View answer
Correct Answer: C
Question #17
The purpose of a ___________ is to identify the complexity of the process and to assist in identifying critical steps in the process.
A. Pareto Chart
B. Process Map
C. Kanban
D. Kaizen event
View answer
Correct Answer: B
Question #18
A 5 Why Analysis is used to help identify possible defect causes when which one of the below listed tools is created?
A. Fishbone Diagram
B. SIPOC
C. X-Y Matrix
D. Pareto Chart
View answer
Correct Answer: A
Question #19
The ROI for a project is a measurement metric that stands for Return on Investment and is one of the methods used to measure the success of a Lean Six Sigma project.
A. rue
B. alse
View answer
Correct Answer: A
Question #20
The following Business Case is constructed properly. “During most of 2008 Division 16 experienced a4.2% product return rate versus a target of nearly no returns. This costs the company a whole bunchof money.
A. rue
B. alse
View answer
Correct Answer: B
Question #21
A ___________ is a graphical presentation of sample data that shows the number of times that a data point is a specific number.
A. Fishbone Diagram
B. Histogram
C. Pie Chart
D. Box Plot
View answer
Correct Answer: B
Question #22
______________ represents all the variation that one can expect to experience from the output of the subject process.
A. A Standard Deviation
B. Data range
C. Long-term Data
D. The Mode
View answer
Correct Answer: C
Question #23
A key metric in Six Sigma is the DPMO which stands for __________________?
A. Supervising
B. Visual Factory
C. Standard Operating Procedures
D. Performance Drivers
View answer
Correct Answer: C
Question #24
When we create a Process Map we use a ____________ to show the direction of work flow.
A. Solid line arrow
B. Dashed line arrow
C. Series of dots
D. Double lines
View answer
Correct Answer: A
Question #25
Lean Principles defines for us seven specific areas where ___________typically exists in our processes.
A. Waste
B. Excess inventory
C. Variation
D. Data error
View answer
Correct Answer: A
Question #26
A Lean Principle that states the process of eliminating waste is a continual process requiring one to always be on the lookout for ways to reduce the seven elements of waste is known as ____________.
A. Ishikawa
B. Kaizen
C. Kanban
D. Muda
View answer
Correct Answer: B
Question #27
Systems and structures are the basis for allowing people to change their behaviors permanently and are accomplished through which of the following?
A. Documented performance objectives
B. Defined procedures
C. Accurate job descriptions
D. Incentive compensation
E. All of these answers are correct
View answer
Correct Answer: E
Question #28
The Value Chain in an organization is the sum total of all the processes which occur in the business totake inputs and turn them into customer desired outputs.
A. rue
B. alse
View answer
Correct Answer: A
Question #29
A 5 Why Analysis is used to help identify possible defect causes when which one of the below listed tools is created?
A. Fishbone Diagram
B. SIPOC
C. X-Y Matrix
D. Pareto Chart
View answer
Correct Answer: A
Question #30
With a Fishbone Diagram we use the legs to define each source of a potential defect and along the legs we enter each potential means by which a defect could be introduced into our process.
A. True
B. False
View answer
Correct Answer: A
Question #31
When a Belt wishes to clarify the activities of various departments in a Process Map she is creating she adds a feature to the map called ______________.
A. Department Dividers
B. Passing Lanes
C. Swim Lanes
D. Responsibility Paths
View answer
Correct Answer: C
Question #32
When we create a Process Map we use a ____________ to show the direction of work flow.
A. Solid line arrow
B. Dashed line arrow
C. Series of dots
D. Double lines
View answer
Correct Answer: A
Question #33
When a Belt wishes to clarify the activities of various departments in a Process Map she is creating she adds a feature to the map called ______________.
A. Department Dividers
B. Passing Lanes
C. Swim Lanes
D. Responsibility Paths
View answer
Correct Answer: C
Question #34
The purpose of a ___________ is to identify the complexity of the process and to assist in identifying critical steps in the process.
A. Pareto Chart
B. Process Map
C. Kanban
D. Kaizen event
View answer
Correct Answer: B
Question #35
As we identify customer and supplier requirements for a SIPOC we are urged to use the RUMBA approach which stands for _____________, Understandable, Measurable, Believable and Achievable.
A. ARational
B. B(un)Resistable
C. CRelatable
D. DReasonable
View answer
Correct Answer: D
Question #36
With a Fishbone Diagram we use the legs to define each source of a potential defect and along the legs we enter each potential means by which a defect could be introduced into our process.
A. True
B. False
View answer
Correct Answer: A
Question #37
A Belt gathered the following defect data for a polyurethane production line and wanted to assemble it into a Pareto Chart. The correct order from left to right in the chart would be:Data: Trimming 37Forming 61Packaging 29Sealing 5
A. Trimming, Packaging, Sealing, Forming
B. Packaging, Trimming, Sealing, Forming
C. Sealing, Forming, Trimming, Packaging
D. Forming, Sealing, Trimming, Packaging
View answer
Correct Answer: D
Question #38
When we create a Process Map and want to depict an action step in the process we would use the____________ symbol.
A. iamond
B. ircle
C. llipse
D. ectangle
View answer
Correct Answer: D
Question #39
The RPN or Risk Priority Number is used to rank the various Failure Modes as to their impact on the output of the subject process.
A. True
B. False
View answer
Correct Answer: A
Question #40
Voice of the Customer is a Lean Six Sigma technique to determine the ___________ attributes ofa product or service.
A. Desirable
B. Beneficial
C. Critical - to - Quality
D. Preferred
View answer
Correct Answer: C

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