1. In Six Sigma, a ______________ is defined as any process output that does not meet
customer specifications
Correct : D. defect
2. –––––––– are the charts that identify potential causes for particular quality problems.
Correct : C. Cause and Effect Diagram
3. Production issues should be addressed early
Correct : A. correct (not sure)
4. QFD stands for ______________
Correct : C. Quality function deployment
5. Reliability is the degree to which a unit of equipment performs its intended function under
______________ for ______________ of time.
Correct : A. specified conditions; specified period
6. Kaizen is a ______________ process, the purpose of which goes beyond simple productivity
improvement.
Correct : B. daily
7. At the time of making a purchase agreement with a vendor, what is important to mention
about inspection?
Correct : D. a & b both (not sure)
8. "Poka-yoke" is the Japanese term for ______________
Correct : B. Fool proof
9. A fishbone diagram is also known as a .______________
Correct : A. cause-and-effect diagram
10. A maturity model can be used as a benchmark for comparison and as an aid to understanding
Correct : A. TRUE
11. Fourteen points framework for quality and productivity improvement was suggested by
______________
Correct : C. Deming
12. Juran's Quality trilogy emphasizes the roles of quality planning, quality control and
______________
Correct : C. Quality improvement
13. Quality Circles members are ______________
Correct : D. None of the three.
14. Costs of dissatisfaction, repair costs, and warranty costs are elements of cost in the
______________
Correct : A. Taguchi Loss Function
15. Kaizen is a Japanese term meaning ______________
Correct : A. continuous improvement
16. Establishing measurements based on customer needs for optimizing product design is known
as ______________
Correct : D. Quality planning (Actual answer is Quality planning roadmap)
17. DMAIC is ______________
Correct : C. define, measure, analyze, improve, control
18. Quality fulfills a need or expectation that is:
Correct : D. All of the above
19. The taste of burgers across all McDonald outlets should be same. This is an example of
______________.
Correct : A. Sensory critical to quality Characteristic
20. Check Sheet is used during ______________ stage of DMAIC.
Correct : B. Measure
21. ______________ is the set of activities that ensures the quality levels of products and
services are properly maintained and that supplier and customer quality issues are properly resolved.
Correct : A. Quality Assurance
22. Presence of ______________ after every stage of DMAIC allows for review of project and
incorporation of suggestions.
Correct : B. Toll gate
23. The Toyota Production System is based on two pillars namely ______________ and
______________.
Correct : C. Just in Time, Jidoka
24. Which of the following is not a target of Total Quality Management:
Correct : B. Reducing manpower
25. Let there be a data set {200,201,202,203,204,205,206,207,208}. This data set can be
represented using stem and leaf where the ______________ is 20 and the ______________ is {0,1,2,3,4,5,6,7,8}.
Correct : A. Stem, Leaf
26. A ______________ diagram shows the location of defects in any unit. This diagram is used
in the analyze step of DMAIC.
Correct : C. Defect Concentration
27. The ______________ is used to identify what might go wrong in a plan under development.
Correct : B. PDPC
28. The defect concentration diagram can be used in the ______________ stage of the DMAIC.
Correct : C. Analyze
29. The taste of the burger can be categorized as good or bad This is an example of which type of
data:
31. The pattern of continuous movement in one direction in a control chart is termed as:
Correct : C. Trend
32. Juran's quality management philosophy is based on three pillars namely planning, control and
______________.
Correct : B. Improvement
33. For a point in the control chart to be out of control, it must lie
Correct : A. Above UCL or Below LCL
34. X bar should never be interpreted when:
Correct : A. R chart shows out of control points
35. The average run length can be defined as:
Correct : B. The expected number of samples taken before any shift in process quality is detected
36. Consider the first method of p bar estimation where each sample is of varying size. If the 3rd
sample has p bar =.01, and the sample size of the 3rd sample is 10, what will be the upper control limit for the 3rd sample?
Correct : C. 0.1 ((p bar + 3∗ √p bar∗ (1-p bar)/n) is a measure of the upper control limit)
37. A major assumption for p chart is that all units produced are ______________.
Correct : A. Independent
38. Apart from Poisson distribution, another distribution that can be applied to events data is:
Correct : B. Geometric Distribution
39. Which of the following is not true regarding when to select a p, c or u chart?
Correct : D. Destructive testing (or such other expensive testing procedures) is required.
40. The dimension of reliability is concerned with:
Correct : D. How often does the product fail
41. From a consumer perspective quality is determined by ______________ while from a
producers perspective quality is determined by ______________.
Correct : C. Price, Cost
42. The probability distribution function corresponding to tossing of a coin will be a:
Correct : B. Probability Mass function
43. While the first generation of Six sigma focused on ______________, the third generation of
six sigma focused on ______________.
Correct : A. Variability reduction, creating value
44. The standard normal distribution has mean= ______________ and standard deviation=
______________.
Correct : B. 0,1
45. A ______________ chart can be used to identify the most frequently occurring defect.
Correct : A. Pareto
46. The main aim of QFD is to
Correct : A. Listen to the voice of customer
47. Average Total Inspection is defined as:
Correct : B. Average number of units inspected per lot
48. R charts are used for controlling ______________ of a process.
Correct : B. Dispersion
49. If the Average outgoing Quality is plotted against the Incoming Fraction Defective, the
Average Outgoing Quality Limit is the ______________ point.
Correct : A. Highest
50. For the above table, what is the value corresponding to the central line for the x bar chart?
Correct : A. 10.08
51. The x bar chart monitors:
Correct : A. Between sample variability
52. In case someone is interested in process standard deviation, he should construct the
______________ chart.
Correct : C. S chart
53. If data for MR chat shows non-normality, it is better to determine the control limits for the
individuals control chart based on the ______________ of the correct underlying distribution.
Correct : B. Percentiles
54. A sample of size 10 contains 50 non-conformities. The average number of non-conformities
is:
Correct : C. 5 (50/10 i.e. total non-conformities/sample size)
55. When the number of defects is low, which of the following is true:
Correct : C. Create a time between occurrence control chart
56. Bias reflects the:
Correct : B. The difference between observed measurements and a "true" value obtained from a master or gold standard
57. If variability of a product decreases, its quality ______________
Correct : C. increases
58. The focal point of all quality control should be:
Correct : C. Customer Focus
59. The key process input variables (KPIV) and key process output variables are developed
during the ______________ phase.
Correct : C. Measure
60. An unbiased dice is rolled once. The probability of getting a number greater than 4 is:
Correct : D. 1/3
61. Which of the following statement is false:
Correct : D. Manufacturing Unit should be the unit focusing on Quality Improvement among all units in an organization
62. Cause and Effect Diagram can be used in the ____ and ____ step of DMAIC.
Correct : C. Analyze, Improve
63. Which of the following is false regarding when acceptance sampling is useful:
Correct : B. When 100% inspection cost is very low
64. Let p0 be the incoming fraction defective and p1 be the outgoing fraction defective
(Assume both p1 and p0 is greater than 0). If rectifying inspection is performed then:
Correct : B. P1<p0
65. A company wants to measure the length of a fan as a part of its quality control exercise. The
type of data collected will be:
Correct : B. Attribute
66. If only ______________ causes of variation are present, the output of a process forms a
distribution that is table over time and is predictable.
Correct : C. Natural
67. For an x bar chart, β risk can be defined as:
Correct : B. The probability of not detecting the shift in process mean from μ0 (in control value) to μ1
68. Consider that for a process s bar (average standard deviation of 50 samples each of size 4) is found to be 10.04. The value of c4 (corresponding to sample size of .4) is .92. What is the estimated value of process standard deviation?
Correct : A. 10.91 (s bar/ c4 is an unbiased estimator of standard deviation)
69. The basic assumption of calculating the control limits based on average sample size (for a p
chart) will ______________ from/as those previously observed.
Correct : C. Not greatly differ
70. The g chart is the control chart for:
Correct : B. Total number of events
71. Attribute charts may be used when:
Correct : A. Several characteristics can be jointly measured
72. The thickness of the blade of a fan is specified to lie between 4 cm and 6 cm. The length of the blades must lie between 10 cm and 20 cm. A fan blade randomly selected from a sample of 100 blades has a thickness of 5cm and a length of 21cm. The number of defect(s) the blade has is ______________.
Correct : A. One
73. The probability of getting a multiple of 2 on throwing a dice once is:
Correct : A. 1/6
74. Inspection of incoming/outgoing items is an example of ______________.
Correct : B. Appraisal Cost
75. Four basic characteristics of an optimal process are:
Correct : D. Economy, efficiency, productivity, quality
76. ______________ diagram is used for identifying potential relationship between two
variables.
Correct : D. Scatter
77. Lots for acceptance sampling should be ______________ and ______________.
Correct : A. Homogeneous, Large
78. The roof of house of quality shows the interrelationship between:
Correct : B. Design Attributes
79. X bar charts are uses to control the ______________ of a process.
Correct : B. Central tendency
80. Given that for the three samples, the value of R bar is .66 and value of d2 corresponding to
three is1.128, what is the estimated standard deviation?
Correct : C. .58
81. Given L=3 and p=.03, estimate the sample size that can be used for construction of a p
chart.
Correct : D. 291 ((1-p)∗L2/p gives us an estimate of sample size)
82. The chart used for tracking number non-conforming is:
Correct : B. Np
83. For a c chart, the OC curve plots the ______________ against ______________.
Correct : A. Probability of Type 2 error, true mean number of defects
84. Identification of customers and listening to the Voice of Customer (VoC) are a part of:
Correct : B. Quality Planning
85. Ease of repair is associated with ______________ dimension of quality.
Correct : A. Serviceability
86. SIPOC diagram, used for understanding the flow in a process is used in ______________
stage of DMAIC.
Correct : A. Define
87. Two major components of fitness of use are Quality of Design and ______________.
Correct : A. Quality of Conformance
88. For new product development, the chosen methodology should be
Correct : A. DMADV
89. In DMAIC, redesigning of process to either remove bottlenecks or to reduce waste takes
place in the ______________ stage.
Correct : C. Improve
90. The critical path method determines the ______________ path from the beginning to the
end of the project.
Correct : C. Longest
91. The Operating characteristic curve shows the relationship between the probability of
acceptance (on y axis) and ______________ (on x axis).
Correct : A. Proportion defective
92. In a double sampling plan, let d1 be the number of defects in the first sample and d2 be the
number of defects in the second sample. Let c2 be the acceptance number for both samples. The condition for rejection is:
Correct : B. D1+d2>c2
93. While random variability in a system can be removed by ______________, non-random
variability requires ______________.
Correct : B. Improvement in the system, operator or management action
94. The concept of rational sub group means that subgroups or samples be selected such that if
assignable causes are present the chances for differences between subgroups will be ______________.
Correct : B. maximized
95. Q-Q plot is used to check:/p>
Correct : A. Normality of the dataset
96. The OC curve provides a measure of the ______________ of the control chart.
Correct : A. Sensitivity
97. Which of the following is not a type of attribute chart?
Correct : D. X bar chart
98. The thickness of aluminum sheet is specified to be of 6±2 mm. The Upper Specification
Limit and Lower Specification Limit for the sheet are:
Correct : B. 8mm, 4mm
99. Failure Mode and Effects Analysis, which prioritizes different sources of error, is used in
______________ stage.
Correct : D. Analyze
100. In a six sigma improvement project the least experienced individuals are: