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IASSC Black Belt Exam Questions PDF, Free Download | SPOTO

The IASSC Certified Lean Six Sigma Black Belt exam is designed for professionals aiming to master Lean Six Sigma principles and lead complex process improvement projects. This certification validates your expertise in data-driven problem-solving and process optimization techniques, including the DMAIC methodology. SPOTO provides a curated selection of IASSC Black Belt exam questions in PDF format, available for free download, to help you prepare effectively. These resources include practice questions, exam dumps, and study guides tailored to the 2025 syllabus. With SPOTO’s reliable materials, you can confidently tackle the exam, ensuring a higher chance of success on your first attempt. Access the most up-to-date resources and take a step closer to becoming a certified Lean Six Sigma Black Belt professional today!
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Question #1
If a Six Sigma project was to reduce changeover times and the team found the project success was decreasing over time since changeover times began to creep back up, which Lean tools should be considered in the Control Phase to reestablish and sustain the project success?
A. mprove the lighting to assure adequate visibility
B. onfirm a Visual Factory exists to assure proper communication of status of machines
C. mplement Kanbans to assure enough inventory for the process step
D. eword the standardized work instructions to use active verbs and not passive phrases
View answer
Correct Answer: B
Question #2
Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).
A. pread
B. eliability
C. recision
D. eflection
View answer
Correct Answer: A,C
Question #3
The primary objective in removal of waste is to improve the Order Production Cycle where the time from______________ to the time of receipt of payment is compressed.
A. hift start
B. roduct development
C. eceipt of an order
D. ew fiscal year
View answer
Correct Answer: C
Question #4
All the data points that represent the total set of information of interest is called the__________________.
A. opulation
B. ample
C. rame
D. pread
View answer
Correct Answer: A
Question #5
The most appropriate type of FMEA for a product before going into manufacturing is a___________________ FMEA.
A. esign
B. onsumer
C. urvey
D. est Process
View answer
Correct Answer: A
Question #6
Upon completion and validation of an improvement to a process a Belt and the Project Team create a Control Plan that contains which of these?
A. tandard operating work description of the process change
B. escription of the monitoring system in place to assure continued compliance
C. ummary of the targeted critical metrics for process performance measurement
D. ll of the above
View answer
Correct Answer: D
Question #7
The distance between the Mean of a data set and the Point of Inflection on a Normal curve is called the _______________.
A. urve Spread
B. tandard Deviation
C. umerical Average
D. ata Breadth
View answer
Correct Answer: B
Question #8
Relative to a Design of Experiments the term __________ refers to variables being a linear combination of each other.
A. achines continually operating to reduce the labor cost per piece
B. ack of a system to assure proper inventory levels at repair stations
C. hangeover instructions incomplete
D. rocess flow for the same product assembly taking various cycle time for completion
View answer
Correct Answer: C
Question #9
A(n)_____________has occurred when two inputs have a greater impact on a change in the output than either of the inputs has by itself.
A. ependency
B. imodal reaction
C. nteraction
D. mplified effect
View answer
Correct Answer: C
Question #10
Which statement(s) are correct about the Regression shown here? (Note: There are 2 correct answers).
A.
B.
C.
D.
View answer
Correct Answer: D,E
Question #11
Production Line 1 is able to complete 500 units per shift. Production Line 2 is able to finish 1,500 units per shift. Production Line 2 is 3 times faster than Production Line 1. This analysis is an example of__________________ Scale Data.
A. ominal
B. atio
C. rdinal
D. nterval
View answer
Correct Answer: B
Question #12
Using this partial Z Table, how many units from a month’s production run are expected to not satisfy customer requirements for the following process?Upper specification limit: 7.2 Lower specification limit: 4.3 Mean of the process: 5.9 Standard Deviation: 0.65 Monthly production: 450 units
A.
B.
C. 0
D. 2
View answer
Correct Answer: C
Question #13
Each of the items listed would impact the Process Capability for a process with a continuous output except___________________.
A. hape of process data distribution (e
B. rocess Technology
C. rocess Standard Deviation
D. easonal variation in process
View answer
Correct Answer: B
Question #14
Which statement is NOT correct about the Fitted Line Plot shown here?
A. he independent variable is the reactant
B. f the reactant was 6 units, with 95 % confidence we would expect a minimum yield of 100 units
C. ith at least 95% confidence, we can expect less than 10 units of Yield when the reactant is at a value of 1
D. reactant value between 2 and 4 units yields around 20 to 40
E. hen the reactant increases, the expected yield would increase
View answer
Correct Answer: D
Question #15
When a Belt creates a Process Map she will use a____________ to depict a decision point requiring a Yes or No decision.
A. ircle
B. quare
C. iamond
D. ectangle
View answer
Correct Answer: C
Question #16
Range Charts are the technique used to determine if Special Causes are occurring within the subgroups of the __________.
A. istograms
B. PC Charts
C. P Charts
D. areto Charts
View answer
Correct Answer: B
Question #17
A concept that addresses the consistency of process workers is called ________?
A. Supervising
B. Visual Factory
C. Standard Operating Procedures
D. Performance Drivers
View answer
Correct Answer: C
Question #18
Kaizens or Kaikakus and Six Sigma projects are intended to create breakthrough, significant process improvement versus minor, incremental improvements.
A. rue
B. alse
View answer
Correct Answer: A
Question #19
Questions that can be best answered by a Visual Factory include all of these except _____________.
A. re downtime issues easily noted?
B. an extra inventory be seen easily?
C. re unneeded tools or supplies easily noted?
D. re setups optimized for lower scrap levels?
View answer
Correct Answer: D
Question #20
For her injection molding project a Belt needed to track the percentage of defectives of a particular sample set so she used a___________________ to display the data?
A. ndividual Chart
B. Chart
C. bar Chart
D. Chart
View answer
Correct Answer: D
Question #21
One of the methods of testing a Measurement System is to have at least two people take multiple readings from the same instrument and of the same sample set to judge the Repeatability and Reproducibly. This approach is called a______________________ study.
A. orrelation Analysis
B. age R & R
C. imodal
D. ual Attribute
View answer
Correct Answer: B
Question #22
Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. Which of these items is a Visible Cost?Please choose the correct answer.
A. Lost Customer Loyalty
B. Time Value of Money
C. Returns
D. Late Delivery
View answer
Correct Answer: C
Question #23
Which of these items are not part of what is necessary for successful Kaizens?
A. ood lighting
B. anagement support
C. perator support
D. nalysis tools
View answer
Correct Answer: A
Question #24
Fractional Factorial designs are used to reduce the __________because the number of runs has been lowered.
A. ime and cost of experiments
B. umber of people involved
C. umber of data measurement points
D. utput summary
View answer
Correct Answer: A
Question #25
Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. All these items are Hidden Cost except________________.
A. ost Customer Loyalty
B. eturns
C. ime Value of Money
D. ate Delivery
View answer
Correct Answer: B

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