Full Length LSSGB Exam Testpaper 1
1. When a survey is conducted with the customers, what does NOT get indicated with high
customer satisfaction number?
Customer loyalty
2. In a full factorial experiment with 4 factors at 3 levels each, how many trials are
required?
81
3. What tool is customarily used to complement the cause-and-effect diagram?
Brainstorming
4. Out of the given choices which of the matrix types illustrates relationships in three
planes?
Y type
5. Recently, steps have been made to substantially improve the process. A p chart has been
plotted for some time. One would not be surprised to find that:
A larger sample size must be taken
6. A six sigma project has progressed to the point that a control plan is required. Control
plan activities can be considered closed after which of the following?
The control plan is a living document and is rarely closed
7. The difference between setting alpha equal to 0.05 and alpha equal to 0.01 in hypothesis
testing is:
With alpha equal to 0.05, one is more willing to risk a type I error
8. Typically, a team sponsor or champion:
Is a liaison between the team and upper management
9. When is process FMEA generally performed?
Just before the production tooling is authorized
10. Which of the following tools would NOT be part of the control plan development?
Measurement scales
11. Information generated in a designed experiment:
May be based on values which are not necessarily numerical
12. An in-control process has been performing satisfactorily for some time. However, an
improvement is now required. The best response is to:
Minimize the common causes to improve the process
13. For the small incremental changes, which is the Japanese technique which is most closely
identified?
Kaizen
14. To measure the effective use of resources, which of the following metrics would be the
most inappropriate?
Customer courtesy ratings
15. What is another name of Ishikawa diagram?
Fishbone Diagram
16. A p-value is used in many statistical calculations. It can be described as:
Containing extreme test statistic probability value as obtained from the sample
data
17. If events are not occurring simultaneously then they are called:
Mutually exclusive
18. It is found that a process requiring a capability determination is not normal, but appears
to be stable. The LEAST desirable action to take, at this point, would be to:
Advise the customer and request specification changes
19. Advantage of the R&R range method compared to the average and range or ANOVA
methods is that it is a quick way to:
Quantify the total R and R portion of measurement.
20. Effective control chart subgrouping includes all of the following actions EXCEPT:
Group product so that the subgroups are as heterogeneous as possible
21. A process is checked at random by inspection of samples of four shafts after a polishing
operation, and X-bar and R charts are maintained. A person making a spot check
measures two shafts accurately, and plots their range on the R chart. The point falls just
outside the control limit. He/she advises the department foreman to stop the process. This
decision indicates that:
The process dispersion is out of control
22. A six sigma team is investigating the sources of variation in fabric rolls. All rolls are
different in length. The variable of interest is the number of holes per unit of length.
Which control chart will work best for this situation?
u chart
23. Out of the following which one is NOT a characteristic of GANTT charts:
Estimates of optimistic and pessimistic times can be included
24. The implementation of a control plan in the painting department was so successful that a
master black belt wants you to implement the same control plan in the final assembly
line. What changes should be made before implementing the necessary control plan?
Each control plan is unique, a new plan must be developed for the final assembly
line
25. A process has been experiencing problems lately. The operators charting the process have
identified the cause to be due to a change in incoming materials. This problem is:
A special cause
26. Which of the following is accomplished by using process Map?
Track products, operator actions, or administrative procedures
27. Out of the following which tool is customarily used to complement the cause-and-effect
diagram?
Brainstorming
28. When making inferences about a population variance based on a single sample from that
population, what-distribution is used?
Chi-square
29. 1,000 gamblers start rolling dice under the condition that if they roll a six they can stay in
the game. After three honest rolls, approximately how many gamblers will remain?
4.629
30. The term severity in a FMEA table describes the:
Possible impact to a system user of a low level failure
31. To organize facts and data about an unfamiliar subject or problem, which of the new
quality management tools is used?
The affinity diagram
32. Square root of variance is called:
Standard Deviation
33. The control chart that is most sensitive to variations in a measurement is:
X-bar and R chart
34. A six sigma green belt has run a 5-2 fractional factorial design. Only 2 of the 5 factors
remained important after the factorial analysis. Escalation of this DOE to an optimization
model will be best accomplished by:
Performing a response surface experiment
35. In which of the following situations is the use of an X-bar and R chart likely to be most
helpful as a tool to control a process:
The machine capability is somewhat smaller than the specification.
36. An X-bar - R chart has been in control for sometime. If the range suddenly and
significantly increases, the mean will:
Occasionally show out of control of either limit
37. Identify the assumption that is NOT made when conducting an experiment:
That the selected factors are the only ones of importance
38. For measuring the same quality characteristics (thickness in this case) two micrometers
are used. The micrometer at headquarters has more decimal places than the one being
used at the plant. Then the micrometer at headquarters is more:
Sensitive
39. Out of the following graphs which is used to generate correlation coefficients:
Scatter Diagrams
40. The calculation of experimental error is a fundamental analysis for determining the
statistical significance of DOE factors. Which of the following elements allows for the
determination of experimental error?
Replicates
41. Measuring system re-analysis seems an odd improvement after the real process
improvements have been implemented. What is the logic behind this step?
Process variation reduction requires a re-evaluation of the measuring system
42. If a process is out of control, the theoretical probability that a single point on the X-bar
chart will fall between plus one sigma and the upper control limit is:
.
Unknown
43. What percentage of the area under the normal curve is included within + 3 standard
deviations from the mean?
99.70%
44. Which of the following names would be most clearly identified as a proponent of
improvement and breakthrough projects?
Juran
45. An optimized risk management process is best described in which statement?
Overall cost and risk are minimized
46. In most six sigma organization, an organized and disciplined approach for solving
problems is known as:
DMAIC
47. Which of the following tasks is value added?
An appropriate product development process
48. What would be most closely associated with the Kanban method?
The control of material flow
49. When making measurements with test instruments, precision and accuracy mean:
Consistency and correctness, respectively
50. Identify the improvement methodology which would be LEAST effective in validating
the outcome of an improvement activity when only quantitative data is involved.
Pareto diagram re-analysis
51. Which of the following tools would be of LEAST value when assessing the rests of an
improvement team's activities?
A brainstorming session
52. Which one of the following distributions describes ratios of two variances drawn from
the same normal population?
F-statistic
53. Out of the following which is a true probability statement for two events, A and B?
P(A or B) = P(A) + P(B) if A and B are mutually exclusive
54. What would be included in one way communication within organization?
E-mails and letters
55. Which of the following best describes the actions of a team during the team building
phase?
The group is uncertain of their duties
56. A number that results from the manipulation of some raw data according to certain
specified procedures is called
A statistic
57. Which of the following DOE strategies most resembles the Kaizen philosophy?
EVOP
58. Which of the following is a valid null hypothesis?
mu = 110
59. Sponsorship training is given to which group in a highly effective six sigma companies
Senior Management
60. Under what conditions can the Poisson distribution be used to approximate the binomial
distribution?
When p is equal to or smaller than 0.1 and the sample size is large
61. An understanding of variation categories is important in the selection of rational
subgroups for control charting and other purposes. Which of the following would be the
LEAST likely variation source reduced by control charting and subsequent floor level
follow-up action?
Inherent process variation
62. When should an X - MR chart be used?
For destructive testing applications
63. What is the importance of the reaction plan in a control plan?
It describes what will happen if a key variable goes out of control
64. An investigation of the total product or process variability indicates that the single largest
element is quite often:
Dependent on the process itself
65. Process capability analysis is defined as:
The determination that the process can meet the product specifications as
intended
66. Identify the major area of variation classification NOT specifically addressed in multivari studies:
Piece-to-piece
67. In translating customer needs into product design features, which of the following
techniques is used?
Quality function deployment
68. The test used for testing significance in an analysis of variance table is the:
F test
69. For process capability, what is null hypothesis?
None of the above
70. Out of the following statistical distributions, which can be used to compare sample
means?
t distribution
71. Identify the form with which Overproduction, scrap, waiting, and excess motion are
associated with?
Muda
72. It is often desirable to do an R&R study of a gage system and compare it to the total
process variation. What must be assured about the gage being used before an R&R study
can be performed?
Accuracy and sensitivity
73. A student's t test can be used to determine whether or not any differences exist in:
Averages
74. Out of all the choices given, Which of them is NOT a DFSS technique?
SPC
75. Which new quality management tool would be used, In developing a chart to plot a
course of action, with many of the events or milestones unknown
Process decision program chart
76. While plotting a control chart, it is noted that two of the last three points are greater than
2 sigma, four out of the last five points are beyond 1 sigma, and eight successive points
are on one side of the center line. This information suggests that one should:
Investigate to determine what has changed
77. Which of the following input categories are not included in a cause-and-effect diagram:
Maintenance
78. After the successful completion and implementation of the first four phases of DMAIC,
the control phase should be completed by which of the following?
The complete team is the most desirable option.
79. In performing an analysis of variance in a single factor experiment, a fundamental
assumption which is made is that the:
Column variances are equal
80. While performing an analytical study, which of the following statistical values would
seldom be known?
The true population parameter
81. Which of the following stakeholder groups would be LEAST affected, If a company fails
to meet their quarterly projected sales and profit forecasts?
Society
82. For communicating information which is the most effective method?
A combination of methods
83. Which phase of IDOV method defines overall product requirements, quantifies marketing
information and customer feedback, and therefore creates the first set of CTQ (critical to
quality) features.
Identify
84. If the specification limits are wider than the control limits, then:
None of the above
85. Out of the following distributions which theoretically ties to chi-square distributions:
F and t distributions
86. What is required for the use of the program evaluation and review technique (PERT)
Time estimates for each activity in the network
87. Which of the following new quality tools would be used, for organizing information,
facts or data into a systematic, logical manner?
A tree diagram
88. In the DMAIC approach, at what step would the root causes of defects be identified?
Analyze
89. If a control chart has UCL = 45.1 and USL = 45.6, and the last sample has values of 44.6,
45.7 and 44.8, one can conclude:
The process is out of specification but in control
90. The term Metrics refers to:
An evaluation method
91. Given a coefficient of determination of 0.9, what is the correlation coefficient?
0.9487 or -0.9487
92. What is the main motivating factor for the upper management to embrace six sigma
Financial impact
93. All multi-vari charts would initially plot a measurement for which of the following
categories?
Positional
94. What is the approximate six sigma level of the process if the DPMO for the process is
860?
4.6
95. Out of the given choices, Which of the forms of muda is LEAST likely to result in poor
product quality?
Waiting
96. A process shows lack of stability but yesterday it showed 1.77 which is very good. Then
the supervisor decides to use it as a benchmark for all future process capabilities. What
should you advise your supervisor?
Do not use the 1.77 value, first get the process to statistical stability
97. What is TPM in the lean enterprise system?
Total productive maintenance to maximize equipment usage
98. Out of the following number sets which one is mutually exclusive? I. 1, 2, 3 II. 2, 4, 6 III.
1, 3, 5, 7 IV. 1, 2, 3, 4, 5, 6, 7, 8, 9
II and III
99. A six sigma project team is led by a green belt. The current activity is to develop a
control plan. The ultimate responsibility for developing the initial plan would belong to:
The green belt
100.
The SIPOC model helps everyone in an organization to see the business from an
overall process perspective. However, it does NOT:
Identify the few key business customers