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Lean Six Sigma Black Belt Practice Exam Questions​, Practice Tests | SPOTO

The Lean Six Sigma Black Belt certification is a premier credential for professionals seeking to lead process improvement initiatives and drive operational excellence. Success in the certification exam requires a strong understanding of Six Sigma tools, the DMAIC methodology, and leadership skills in managing projects. SPOTO provides comprehensive Lean Six Sigma Black Belt practice exam questions and tests, designed to simulate the actual exam environment. These resources help candidates reinforce their knowledge, identify weak areas, and improve problem-solving efficiency. Each practice test includes detailed explanations and covers essential topics aligned with the 2025 syllabus. With SPOTO's expertly crafted materials, you can enhance your preparation and approach the exam with confidence. Start your journey to becoming a certified Six Sigma Black Belt professional today with SPOTO’s trusted study resources!
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Question #1
Review the analysis shown here. Which statements are true about the process? (Note: There are 3 correct answers).
A. eibull Distribution
B. ormal Distribution
C. xponential Distribution
D. ogistic Distribution
E. aussian Distribution
View answer
Correct Answer: B,D,E
Question #2
A 2 Sample t-test has several assumptions, which of the following is one of those key assumptions?
A. The variables are independent
B. Data is non-normally distributed
C. The underlying distribution is binomial
D. Variances are unequal
View answer
Correct Answer: A
Question #3
Of the various types of data shown which is NOT representative of Variable Data.
A. hild’s height is 4 foot 3 inches
B. hree employees wore hard hats
C. ar burned 2
D. rain was going 140 kilometers per hour
View answer
Correct Answer: B
Question #4
Measurement_________________ is defined as the difference between the observed and the expected values for a given set of data.
A. inearity
B. ias
C. tability
D. agnitude
View answer
Correct Answer: D
Question #5
The class score distribution of schools in a metropolitan area is shown here along with an analysis output. Comment on the statistical significance between the Means of the two distributions. Select the most appropriate statement.
A. he two class Means are statistically different from each other
B. he two class Means statistically not different from each other
C. nadequate information on class Means to make any statistical conclusions
D. visual comparison shows that class Means are not statistically different
E. visual comparison shows that class Means are statistically different
View answer
Correct Answer: A
Question #6
The Hardware Store ordered ten lawn mower from the manufacturer and just before shipping the manufacturer found one to have a motor that wouldn’t start. For the manufacturer this would be categorized as what type of cost?
A. nternal Failure Costs
B. xternal Failure Costs
C. revention Costs
D. ppraisal Costs
View answer
Correct Answer: A
Question #7
Which of these statements is not true with respect to kaizen?
A. Every employee can participate
B. Addresses Muri, Mura, and Muda
C. The person closest to the process knows most about the process
D. A human asset is the least important asset of an organization
View answer
Correct Answer: D
Question #8
If a Six Sigma project was to reduce repair station inventory and the team found the inventory was creeping up over time which Lean tools should be considered in the Control Phase to reestablish and sustain the project success?
A. eview the Visual Factory to assure inventory in excess of desired visible
B. mprove the lighting to assure adequate visibility
C. nalyze data from supplier deliveries
D. eword the standardized work instructions to use active verbs and not passive phrases
View answer
Correct Answer: A
Question #9
One of the primary deliverables from performing a SIPOC is to begin to understand which inputs have the greatest affect on the___________________ outputs.
A. anagement’s desired
B. upplier delivered
C. rocess operator
D. ustomer most valued
View answer
Correct Answer: D
Question #10
In a two-level full factorial DOE with four factors, how many runs should there be?
A. 16
B. 2
C. 8
D. 4
View answer
Correct Answer: A
Question #11
A Factorial Experiment based on a Level 2 Design with 6 factors would require 16 runs to fully assess the interactions.
A. rue
B. alse
View answer
Correct Answer: B
Question #12
A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $3,600 in order to stay within budget. Using a sample of 42 first article components, a Mean of the new product upgrade price of $3,200 and a Standard Deviation of $180 was estimated. Based on the data provided
A. 6
B. 12
C. 24
D. 48
View answer
Correct Answer: B
Question #13
When the Inputs, X’s, for your process are Normally Distributed about the Mean, the Outputs, Y’s, will always be Normally Distributed.
A. rue
B. alse
View answer
Correct Answer: B
Question #14
In a Fishbone Diagram the 6M’s stand for Methods,___________ , Machine, Man, Mother Nature and Materials.
A. easurements
B. erger
C. anagement
D. edical
View answer
Correct Answer: A
Question #15
The relationship between a response variable and one or more independent variables is investigated and modeled by use of____________________.
A. -Y Matrix
B. aldridge Assessment
C. nalysis of Variance (ANOVA)
D. ritical X's Definition
View answer
Correct Answer: C
Question #16
A_________________ is used primarily to track the stability of the average value of a metric of interest.
A. P Chart
B. bar-R Chart
C. -MR Chart
D. Chart
View answer
Correct Answer: B
Question #17
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 #18
Data that can be measured on a continuum and has meaningful decimal subdivisions are________________ data.
A. ontinuous
B. urplus
C. iscrete
D. ariable
View answer
Correct Answer: A
Question #19
A Belt has determined that the inventory of repair parts at a rework station can be reduced by 45%. According to Cost of Poor Quality (COPQ) definitions inventory reduction would be considered_______________.
A. oft Savings
B. OPQ efficiency
C. edian Savings
D. ard Savings
View answer
Correct Answer: D
Question #20
Much of the Six Sigma methodology is used to identify and remove causes for___________.
A. rocess Variation
B. aterial Costs
C. xcess Inventory
D. ost Sales
View answer
Correct Answer: A
Question #21
Fractional Factorial,___________________ and Response Surface Method are types of planned experiments.
A. ulti-Vari Analysis
B. aldridge Channels
C. ne Factor at a Time or OFAT
D. actorial Design
View answer
Correct Answer: D
Question #22
Common and __________Cause Variation are the focus of Statistical Process Control.
A. ncommon
B. rdinary
C. pecial
D. elective
View answer
Correct Answer: C
Question #23
Early in a project a Belt will want to begin to identify and evaluate risk factors for the subject process and will therefore begin building a(n)_______________________.
A. IPOC
B. MEA
C. usiness Case
D. eam charter
View answer
Correct Answer: B
Question #24
If in an experiment all possible variable pairs sum to zero the design is Orthogonal.
A. rue
B. alse
View answer
Correct Answer: A
Question #25
The English words used for the 5S’s are Sorting, Straightening, ______________, _______________and Sustaining. (Note: There are 2 correct answers).
A. apital costs of money
B. alue decrease from aged inventory
C. ost of storage space
D. ll of these answers are correct
View answer
Correct Answer: B,C

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