IASSC Black Belt Sample Questions, Lean Six Sigma Black Belt | SPOTO

The IASSC Certified Lean Six Sigma Black Belt certification is a benchmark for professionals demonstrating advanced problem-solving and leadership skills within Lean Six Sigma methodologies. To help candidates prepare effectively, SPOTO offers IASSC Black Belt sample questions tailored to the latest exam requirements. These questions focus on key areas like DMAIC, process improvement tools, and statistical analysis, enabling you to assess your knowledge and refine your test-taking strategies. SPOTO’s expertly crafted resources provide an excellent foundation for mastering complex concepts and ensuring exam readiness. Whether you’re a beginner or a seasoned professional, these Lean Six Sigma Black Belt sample questions are invaluable for understanding the exam structure and boosting your confidence. Access SPOTO’s materials today and achieve success on your certification journey!

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Question #1

The Control Limits width varies if the sample size varies for which type of chart?

A. Charts

B. P Charts

C. bar-R Charts

D. ime Series Charts

View answer

Correct Answer: A

Question #2

The______________ is the most frequently occurring value in a distribution of data.

A. edian

B. ean

C. enter Point

D. ode

View answer

Correct Answer: D

Question #3

At the very initiation of a project a Belt must develop a concise_______________ that states at a high level the area of concern and why it is important this issue be improved.

A. usiness Case

B. roject Doctrine

C. anagement Justification

D. rocess Owner Disclosure

View answer

Correct Answer: C

Question #4

The Lean toolbox includes all of the following items except___________________.

A. oke-Yoke

B. tandard Operating Procedures

C. aizen

D. S the work area

View answer

Correct Answer: B

Question #5

When analyzing the behavior of our process to assess customer satisfaction we are concerned about both the variation such that it stays within the spec limits and how well the Mean is________________ the process requirements.

A. alanced against

B. ver and above

C. wice as great as

D. entered relative to

View answer

Correct Answer: D

Question #6

From the variance F-test shown above, which of these conclusions is/are valid?

A. he variance between the class score distribution is significantly different

B. he variance between the class score distribution is not significantly different

C. his test applies only to Normal Distributed data at 99 % confidence

D. his test applies only to Non-normal Data at 99 % confidence

E. here are not enough data points to make any statistical conclusions

View answer

Correct Answer: A

Question #7

A dock worker for a feed supplier was tasked with assuring the proper weight in the feed bags as they left the dock. One of the columns listed the range of weight of the bags included in the studies. This required plotting a Histogram of the weight of the bags. While drawing the Histogram the x- axis contained a certain scale of data. Pick the scale of data that is appropriate for Histograms.

A. rdinal Scale Data

B. nterval Scale Data

C. ominal Scale Data

D. ation Scale Data

View answer

Correct Answer: B

Question #8

Customers make their decisions based on Features, Integrity (of the seller) Delivery and___________?

A. olor

B. xpense

C. eason

D. one

View answer

Correct Answer: B

Question #9

If you can Poka-Yoke a defect out of the process entirely then you do not need use SPC on the characteristic of interest in the defect.

A. rue

B. alse

View answer

Correct Answer: A

Question #10

An operator is measuring the distance between two points. Which is most likely to be influenced by the operator?

A. Precision of the measurement

B. Accuracy of the measurement

C. Calibration of the instrument

D. All of these answers are correct

View answer

Correct Answer: D

Question #11

How many experimental runs exist in a Full Factorial and fully randomized design for 5 factors with 2 replicates for the Corner Points and no Center Points? The factors in the experiment are only at 2-levels.

A. 0

B. 28

C. 56

D. 4

View answer

Correct Answer: D

Question #12

The Lean toolbox includes all of these items except ____________.

A. istake Proofing

B. isual Factory

C. esign of Experiments

D. nventory Management

View answer

Correct Answer: C

Question #13

Which of the items listed do not define what an X-Y Diagram is?

A. reated for every project

B. ased on team's collective opinions

C. pdated whenever a parameter is changed

D. sed to show each step in a process

E. living document throughout project lifecycle

View answer

Correct Answer: D

Question #14

When we gather information for the Voice of the Business we are primarily interested in information concerning the_____________ of the business.

A. dvertising budget

B. arket share

C. rofitability

D. wnership

View answer

Correct Answer: C

Question #15

To properly analyze the variables impacting the output of a process we need to collect data that represents at least 80% of the variation in the process and assure ourselves we are collecting data from all three types of variation which are______________________.

A. ithin, Between and Temporal

B. ithin, Between and Temporary

C. ithout, Above and Below

D. nduced, Natural and Unavoidable

View answer

Correct Answer: A

Question #16

When a Belt Poka-Yoke’s a defect out of the process entirely then she should track the activity with a robust SPC system on the characteristic of interest in the defect as an early warning system.

A. rue

B. alse

View answer

Correct Answer: B

Question #17

When one speaks of 20% of something contributing 80% of the affect they are referring to what is known as the_______________.

A. hewhart Example

B. areto Principle

C. alance Equation

D. onnection Principle

View answer

Correct Answer: B

Question #18

To be an effective Lean Six Sigma practitioner one must understand the difference between______________.

A. NOVA and the Analysis of Variance

B. onparametric tests and tests of Non-normal Data

C. -test and test of variances of 2 samples

D. ractical and Statistical significance

View answer

Correct Answer: D

Question #19

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 #20

Using this data calculate the percentage of DPU.

View answer

Correct Answer: B

Question #21

How many experimental runs exist in a Full Factorial and fully randomized design for 4 factors with 2 replicates for the Corner Points and no Center Points? The factors in the experiment are only at2-levels.

A. he Experimental Design is half-fractional

B. he Main Effects are confounded with only 4-way interactions

C. he Main Effects for the 5 factors are not aliased or confounded but the 2-way interactions are confounded with the 3-way interactions

D. he experiment has 8 experimental runs with the first factor at the high level

View answer

Correct Answer: B

Question #22

Time is always the metric on the horizontal scale of a(n) Chart____________________.

A. areto

B. bar

C. ulti-Vari

D. P

View answer

Correct Answer: C

Question #23

Questions that can be best answered by a Visual Factory include all of these except__________________.

A. re setups optimized for lower scrap levels?

B. an extra inventory be seen easily?

C. an changeover challenges be recognized?

D. re unneeded tools or supplies easily noted?

View answer

Correct Answer: A

Question #24

Calculate the Rolled Throughput Yield of this process using this data. DatA. unit input: 1450, unit output: 1390, defects repaireD. 320, scrap: 60

A. 1

B. 2

C. 3

D. 7

View answer

Correct Answer: B

Question #25

Which statement(s) are incorrect for the Regression Analysis shown here? (Note: There are 2 correct answers).

A. he Regression explains 50

B. he air-fuel ratio explains most of the TurbineOutput variation

C. his Simple Linear Regression explains 98+% of the process variation

D. his Multiple Linear Regression has four statistically significant independent variables

View answer

Correct Answer: D,E

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IASSC Black Belt Sample Questions​, Lean Six Sigma Black Belt | SPOTO

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IASSC Black Belt Sample Questions, Lean Six Sigma Black Belt | SPOTO