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CLSSBB Premium File

  • 300 Questions & Answers


Certified Lean Six Sigma Black Belt
Certified Lean Six Sigma Black Belt


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2.8 MB



Questions & Answers for GAQM CLSSBB

Showing 1-15 of 227 Questions

Question #1 - Topic 1

A quality engineer employed by a hospital is asked to improve the process of medication
storage in locked cabinets near patient doors. One defect that occurs rarely is that the
medication caddy is left out when the cabinet is relocked. The engineer installs a gravity
activated arm that will not permit the door to close when the caddy isnt inside. This
improvement is best described by which approach to problem solving?

A. 5S

B. Poka yoke

C. Kaizen


E. Re-engineering

Question #2 - Topic 1

If the probability that an event will occur is 0.83, then the probability that the event will not
occur is:

A. 0.17

B. 0.07

C. 0.6889

D. 1.20

E. 83%

Question #3 - Topic 1

Find Cp and Cpk.

A. 1.21 and .85

B. .85 and 1.21

C. .35 and .63

D. .63 and .42

E. none of the above

Question #4 - Topic 1

George is an employee of Black, Inc. John is Georges internal customer. Which statement
is true?

A. John is employed by Black, Inc.

B. John is employed by another company that supplies material to Black, Inc.

C. John is employed by a company that purchases material from black, Inc.

D. John is employed by another company that has a fiduciary agreement with Black, Inc.

E. John is employed by another company as an internal auditor.

Question #5 - Topic 1

This experimental design is an example of:

A. full factorial

B. half fractional factorial

C. fractional factorial

D. ANOVA design

Question #6 - Topic 1

= 0.05 In problem 1, do the data indicate that the population for machine A has a larger
standard deviation?

A. yes

B. no

Question #7 - Topic 1

The team in the above problem draws arrows from Post-It notes that are causes to notes
that are the effects of these causes. This step is best described by which approach to
problem solving?

A. Affinity diagram

B. Inter-relationship digraph

C. Tree diagram

D. Process decision program chart

E. Matrix diagram

F. Prioritization matrix

G. Activity network diagram

Question #8 - Topic 1

A team has been asked to reduce the cycle time for a process. The team decides to collect
baseline data. It will do this by:

A. seeking ideas for improvement from all stakeholders

B. researching cycle times for similar processes within the organization

C. obtaining accurate cycle times for the process as it currently runs

D. benchmarking similar processes outside the organization

Question #9 - Topic 1

The preferred method for determining statistically whether factor A or B is significant
requires what additional information?

A. value of noise factors

B. values of responses in replicate runs

C. number of repetitions

D. ambient conditions during the experiment

E. blocking pattern

Question #10 - Topic 1

The operators of a manufacturing cell work out a more orderly arrangement for tool storage
and establish a schedule to maintain cleanliness on a daily basis. These improvements are
best described by which approach to problem solving?

A. 5S

B. Poka yoke

C. Kaizen


E. Re-engineering

Question #11 - Topic 1

The support for an important quality initiative was lacking in congress until Reagans
Secretary of Commerce was killed in a horseback riding accident in 1987. That initiative

A. assigning National Institute for Standards and Technology (NIST) quality oversight duties

B. “consensus of the House” proclamation for Deming’s 14 points

C. changing National Bureau of Standards to NIST.

D. authorizing the American National Standards Institute (ANSI) to join with the International Standards Organization (ISO) to promulgate standards.

E. none of the above.

Question #12 - Topic 1

A team wants a technique for obtaining a large number of possible reasons for excess
variation in a dimension. They should use:

A. written and diagrammed work instructions

B. flow charts and process maps

C. cause and effect diagrams

D. Pareto chart

E. relationship matrix

Question #13 - Topic 1

An engineer wants to try two hardening ovens to see whether they have different hardness
scores. She cuts 8 pieces of bar stock in half, putting half of each in oven A and the other
half in oven B. The following data are collected: Do the data indicate that the ovens have
different average scores? Assume differences are normally distributed.

A. yes

B. no

Question #14 - Topic 1

Find the value of (8) in the ANOVA table. Assume:

A. 16.4

B. 3.2

C. 18.6

D. 23.2

E. 4.54

F. 12.2

G. 0.525

H. 2.82

I. 1.48

J. 35.4 K. 0.10<P<1 L. 0.05<P<0.10 M. 0.01<P<0.05 N. 0.005<P<0.01 O. 0<P<0.005

Question #15 - Topic 1

This table displays the inventory of fasteners in a storage cabinet. A bolt is selected at
random from the fastener cabinet. Find the approximate probability it is size 7/8.

A. 11

B. .08

C. .09

D. .30

E. none of the above