six sigma clssyb-001 practice test

Certified Lean Six Sigma Yellow Belt (CLSSYB)

Last exam update: Nov 18 ,2025
Page 1 out of 8. Viewing questions 1-15 out of 120

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. 1.7
  • B. 2.6
  • C. 3.4
  • D. 10
Mark Question:
Answer:

C

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Question 2

Six Sigma refers to a process whose output has at least 95% of its data points within 6 Standard
Deviations from the Mean.

  • A. True
  • B. False
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Answer:

B

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Question 3

Training cost is $3,000 and a project required an initial investment of $12,000. If the project yields
monthly savings of $1,800 beginning after 3 months, what is the payback period in months (before
money costs and taxes)?

  • A. 4.17
  • B. 8.33
  • C. 11.33
  • D. 28.28
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Answer:

C

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Question 4

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. True
  • B. False
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Answer:

A

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Question 5

The DMAIC approach to problem solving stands for Define, __________, Analyze, Improve and
Control.

  • A. Manage
  • B. Measure
  • C. Memorize
  • D. Manipulate
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Answer:

B

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Question 6

Voice of the Customer is a Lean Six Sigma technique to determine the ___________ attributes of a
product or service.

  • A. Desirable
  • B. Beneficial
  • C. Critical-to-Quality
  • D. Preferred
Mark Question:
Answer:

C

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Question 7

Benefits and working conditions would be primarily the concern of which of the following?

  • A. Voice of the Customer
  • B. Voice of the Employee
  • C. Voice of the Business
  • D. Voice of the Process
Mark Question:
Answer:

B

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Question 8

In the expression Y = f(Xn) Y, the output, is the ___________ variable and Xn, the inputs, are the
__________ variables.

  • A. Independent, dependent
  • B. Individual, multiple
  • C. Sole, multiple
  • D. Dependent, independent
Mark Question:
Answer:

D

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Question 9

When we assess the Voice of the Customer we are attempting to determine the gaps in our
processes between “what is” and __________________.

  • A. “What isn’t”
  • B. “What will make money”
  • C. “What will cost less”
  • D. “What should be”
Mark Question:
Answer:

D

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Question 10

Which of the following would likely not be a CTQ (Critical-to-Quality) for the purchase of a product?

  • A. Functionality
  • B. Durability
  • C. Dependability
  • D. None
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Answer:

D

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Question 11

The Pareto Chart is a tool that displays data that typically follows what ratio?

  • A. 70:30
  • B. 80:20
  • C. 90:10
  • D. 95:5
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Answer:

B

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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
Mark Question:
Answer:

C

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Question 13

Which of the following is a method of expressing the concept that the outputs of a process are a
function of all the inputs to the process?

  • A. Y = f(Xn)
  • B. RTY > 90%
  • C. Yield = Effort
  • D. Flow = Demand
Mark Question:
Answer:

A

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Question 14

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
Mark Question:
Answer:

D

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Question 15

A Belt has determined that the loan application does not need to be reviewed by accounting thereby
improving the number of applications a loan processer can handle. According to Cost of Poor Quality
(COPQ) definitions RTY improvement would be considered _______________.

  • A. Downsizing savings
  • B. Hard savings
  • C. Soft savings
  • D. Median savings
Mark Question:
Answer:

B

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