Six Sigma Black Belt MCQ Questions Answers

1. What is the minimum allowed number of data points for Cpk Analysis

2. The accuracy of a measuring instrument is linked to the U.S National Standards by:

3. What design methodology uses the IDEA process for product definition and development?

4. Which of the following statements about the Student T distribution are true? i) It has a mean of t=0 ii) As the sample size reduces, the student t distribution gets closer to the standard normal distribution iii) The standard deviation of the t distribution is always greater than 1

5. Which of the following is NOT an automated regression testing tool?

6. In Measurement System Analysis the variance contribution allowed for Gage R & R is a maximum of:

7. Kanban concepts include all of the following, EXCEPT:

8. Cpk has been calculated for a stable, non-automated process. Then, the operator is told to check samples at random and make centering adjustments based on the sample readings. One would expect that:

9. Kano Model shows the path towards what behavior?

10. A F-distribution most closely resembles:

11. Of the following, for what purpose would a p-chart be used?

12. If the data set which gives a KS Test p-Value greater than 0.05, the data is called

13. Which of the following is NOT a normally accepted control chart interpretation rule violation?

14. If four inspectors were evaluated for the detection and non-detection of a defect in twenty samples, how many degrees of freedom would be used to determine the critical chi-square value?

15. A manufacturer of bicycles would like to visualize where the defects occur on the bicycles. The defects encountered so far include missing bolts, paint peeling, missing decals, sharp edges, and bent metal parts. A useful tool for this application is a:

16. "Process ACME" involves the manufacturing of Smart boxes. In Process ACME, A,B,C & D are the opportunities for defects. In one such process, 20 defects were found in 100 smart boxes made. What is the six sigma level at which Process ACME is operating?

17. Which of the following statements is false with respect to Gage R&R?

18. What does a control limit indicate?

19. Which of the following statements is NOT true regarding the short run set chart?

20. Which of the following sets of variables can be controlled to change performance in six sigma?

21. What information does Cp convey?

22. There is a 50% chance that a bike will be produced with a defect. This probability is called the:

23. When the Upper Specification Limit (USL) and Lower Specification Limit (LSL) for a Six Sigma Process are plotted on a Normal Distribution, they are located at:

24. A chart that contains defect types on the X axis, customers on the Y axis, and numbers of defects at the corresponding column and row intersections is called:

25. The expected (theoretical) value for a cell in a contingency table is calculated by which formula:

26. Quality Function Deployment (QFD) is what kind of a tool?

27. After the completion of a process improvement, what two actions are required? A: The operating manual must be revised B: The operating documentation must be updated C: Management should be trained on the new changes D: The documentation users should be trained on the changes

28. What does 5 sigma represent in defects per million opportunities (DPMO)?

29. Subgroups are used in which types of SPC charts?

30. Why is acceptance sampling conducted?

31. A process resulting in 99% accuracy to customer specifications, is equivalent to what Sigma level (Process Capability)?

32. The following objectives are relevant to which Phase of a DMAIC Six Sigma Project: * Identify the measurable Y metric that will be improved. * Define a defect from the customer’s perspective * Ensure that you can trust the measurement of the Y

33. Which of the following devices are associated with the visual factory

34. The following objective is relevant to which Phase of a DMAIC Six Sigma Project: To identify the process and Critical to Quality (CTQ) parameters which will be improved, using Voice of the Customer (VOC), Quality Function Deployment (QFD), Pareto Chart, etc.

35. A Six Sigma Black Belt would be responsible for all of the following except:

36. Which of the following represents how variance is computed?

37. What six sigma technique is used to quantify the amount of error in a measurement system?

38. My company operates at a yield of 68.27%, At what sigmal level is my company operating at?

39. Which of the following is not the preserve of a "Project Champion"

40. What is the most logical reason for using short run SPC charts?

41. Cpk can be done only if KS Test p-value is greater than

42. Which of the following methods model the effect of two or more inputs on an output variable?

43. The tendency for highly cohesive groups to lose their critical evaluative capabilities is:

44. The QFD process can be described as:

45. The distribution of the average of n samples will follow which distribution as n becomes large?

46. How is the risk priority number in a FMEA exercise derived?

47. When used together for variables data, which of the following pair of quantities is the most useful in preparing controls charts?

48. What is the F distribution used for?

49. Which of the following techniques is most suitable to collect requirements at the earliest stages of designing a process or a product

50. Which of the following tools is used to translate broad requirements to specific requirements:

51. When implementing Statistical Process Control which of the following would be considered undesirable?

52. Callaway makes golf clubs. Which of the following is not considered one of Callaways internal customers?

53. What does the total area beneath a normal curve equate to?

54. Excessive conflict within a work team: A: Has a positive effect on creating alternate solutions B: Most often results in lose-lose situations C: Has a negative effect on team members and should be avoided

55. The proportion of units that go through a process for the first time without defect is called:

56. TPM efforts attempt to minimize six big losses. Which of the following would NOT be included:

57. The mentor for a Green Belt exam should be at least be designated what?

58. Why are variable control chart subgroup sizes generally 3, 4, 5, or 6? A: Larger subgroup sizes would permit an opportunity for process changes with the subgroup. B: They easily fit on traditional chart paper C: They are large enough so that averages of data will follow the normal distribution D: They permit a separation of within time from time-to-time variation

59. The objective of Design of Experiments (DOE) is to:

60. In an estimated Rolled Throughput Yield (RTY) equation, what is the Defects per Unit (DPU) threshold limit?

61. What does SIPOC stand for?

62. What first step should six sigma projects begin with?

63. Six Sigma is a managerial approach designed to create processes resulting in at most how many defects?

64. The surface appearance of a refrigerator is not satisfactory. This statement is the outcome of what analysis/evaluation?

65. Which quality innovator formulated the cause and effect diagram?

66. A team has been asked to improve the small purchase process in a firm. They decide to create a flow chart of the existing process because it will:

67. Which of the following is an INAPPROPRiate application of a Pareto chart?

68. Team empowerment derives from: A. The organizational management B. Access to organizational information C. Access granted to organizational resources

69. When considering the "rule of thumb" that 20% of the inputs result in 80% of the outputs, what graphical tool is effective for prioritizing Critical X's?

70. Which of the following are potential benefits of Process Mapping?

71. Measuring a process' performance against that of a best-in-class peer or competitor, and then using the findings to identify opportunities to improve, is defined as what?

72. When the mean of the process is outside the customer specification limits the value of Cpk will be:

73. What does a diamond symbol signify in a Process Map

74. When would Cp equal Cpk in a capability index calculation?

75. Which of the following reflects the meaning of the word “Poka –Yoke”?

76. The over-arching intent of a Six Sigma analysis is to:

77. What is mode?