GAQM Certified Lean Six Sigma Black Belt (CLSSBB) - CLSSBB-001 Exam Questions [2026]

QUESTION NO: 1
A valuable tool to use during the Measure Phase to show material and information flow throughout an entire process is the ______________ .

A. Standard Operating Procedure B. Value Stream Map C. Pareto Chart D. FMEA

Correct Answer: B

QUESTION NO: 2
Which statement(s) are correct about the DOE Factorial plot output here? (Note: There are 3 correct answers).

A. The design indicated above is a 32 factorial design B. The cutting speed and cutting angle are at the low level for the least tool age achieved C. The highest tool age was achieved with metal hardness at high level while keeping the cutting speed at the low level D. Two factors were operated at 3 levels each E. All factors had 2 levels in the experiment

Correct Answer: A,C,E

QUESTION NO: 3
A valid mathematical Regression represents all of the characteristics shown except _________________.

A. Most standardized residuals are within ±2 Standard Deviations B. All of the standardized residuals will be within ±3 Standard Deviations C. The residuals when plotted follow a Normal Distribution D. The Residual is equal to the difference between the observed and predicted values E. The sum of the residuals is zero

Correct Answer: B

QUESTION NO: 4
It would be more likely than not for a Belt conducting a Regression Analysis to find that the _______________________.

A. Correlation Coefficient equals r2 B. Coefficient of Determination is less than r2 C. Correlation Coefficient equals r divided by 2 D. r2 value is smaller than the absolute value of r

Correct Answer: D

QUESTION NO: 5
Appropriate measures means that measurements are ______________.

A. Contextual B. Sufficient C. All of these answers are correct D. Relevant E. Representative

Correct Answer: C

QUESTION NO: 6
Common and ______________ Cause Variation are the focus of Statistical Process Control.

A. Special B. Uncommon C. Ordinary D. Selective

Correct Answer: A

QUESTION NO: 7
A Full Factorial experiment using a 3 level 3 factor approach has been proposed to test the viability of an extrusion machine experiment. How many treatment combinations will this approach involve?

A. 9 B. 54 C. 27 D. 6

Correct Answer: C

QUESTION NO: 8
An operator is measuring the distance between two points. Which is most likely to be influenced by the operator?

A. Calibration of the instrument B. All of these answers are correct C. Accuracy of the measurement D. Precision of the measurement

Correct Answer: B

QUESTION NO: 9
Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 22 pots per day if the outside temperature exceeds 60o
F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 18.2 pots per day were sold with a Standard Deviation of 0.9 pots. What is the Z value for this sales process?

A. 1.62 B. 2.11 C. 1.23 D. 4.22

Correct Answer: D

QUESTION NO: 10
Which one of the listed tools is frequently used to help drill down to possible causes once a Fishbone Diagram is constructed?

A. 3 When Analysis B. Skeleton Diagnostic C. Ishikawa Diagram D. 5 Why Analysis

Correct Answer: D

QUESTION NO: 11
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. Xbar Chart B. Individual Chart C. P Chart D. C Chart

Correct Answer: C

QUESTION NO: 12
One of the primary deliverables from performing a SIPOC is to begin to understand which inputs have the greatest affect on the ______________ outputs.

A. Customer most valued B. Process operator C. Supplier delivered D. Management's desired

Correct Answer: A

QUESTION NO: 13
"A calculated time frame that matches customer demand" is a definition of what Lean Principles term?

A. Kanban B. Takt time C. Kaizen event D. Value Stream

Correct Answer: B

QUESTION NO: 14
What aspects of Measurement Systems Analysis (MSA) studies are applicable when the process used to measure does not damage the part?

A. Destructive variable gage R&R and Nested Study B. Nondestructive variable gage R&R and Nested Study C. Destructive variable gage R&R and Crossed Study D. Nondestructive variable gage R&R and Crossed Study

Correct Answer: B

QUESTION NO: 15
Accuracy can be assessed in several ways and a fairly accurate means of measurement is visual comparison.

A. True B. False

Correct Answer: B