ENGI 371
Six Sigma, Lean & Kaizen
MIDTERM EXAM REVIEW
©LU 2024/2025
,1. Multiple Choice: Which of the following is a key principle of
Lean methodology?
a) Maximizing value-added work
b) Increasing inventory levels
c) Reducing customer satisfaction
d) Expanding product offerings
Correct Answer: a) Maximizing value-added work
Rationale: Lean methodology focuses on streamlining processes
by eliminating waste and ensuring that every step adds value to the
customer.
2. Fill-in-the-Blank: __________ is a statistical measure in Six
Sigma that indicates how well a process is performing.
Correct Answer: Sigma level
Rationale: The sigma level measures the number of standard
deviations between the process mean and the nearest specification
limit, indicating the process's capability.
3. True/False: Kaizen is a long-term approach that seeks to achieve
small, incremental changes in processes to improve efficiency and
quality.
©LU 2024/2025
, Correct Answer: True
Rationale: Kaizen emphasizes continuous, incremental
improvement over time, rather than large, disruptive changes.
4. Multiple Response: Select all that apply. Which of the following
tools are used in Six Sigma for quality improvement?
a) Fishbone diagram
b) Pareto chart
c) Gantt chart
d) Control chart
Correct Answers: a) Fishbone diagram, b) Pareto chart, d)
Control chart
Rationale: These tools are used for identifying, analyzing, and
prioritizing quality problems and monitoring process performance.
5. Multiple Choice: In the context of Lean, what does 'Gemba'
refer to?
a) The place where value is created
b) A form of waste
c) A high-level project management office
d) The end product delivered to the customer
Correct Answer: a) The place where value is created
©LU 2024/2025
Six Sigma, Lean & Kaizen
MIDTERM EXAM REVIEW
©LU 2024/2025
,1. Multiple Choice: Which of the following is a key principle of
Lean methodology?
a) Maximizing value-added work
b) Increasing inventory levels
c) Reducing customer satisfaction
d) Expanding product offerings
Correct Answer: a) Maximizing value-added work
Rationale: Lean methodology focuses on streamlining processes
by eliminating waste and ensuring that every step adds value to the
customer.
2. Fill-in-the-Blank: __________ is a statistical measure in Six
Sigma that indicates how well a process is performing.
Correct Answer: Sigma level
Rationale: The sigma level measures the number of standard
deviations between the process mean and the nearest specification
limit, indicating the process's capability.
3. True/False: Kaizen is a long-term approach that seeks to achieve
small, incremental changes in processes to improve efficiency and
quality.
©LU 2024/2025
, Correct Answer: True
Rationale: Kaizen emphasizes continuous, incremental
improvement over time, rather than large, disruptive changes.
4. Multiple Response: Select all that apply. Which of the following
tools are used in Six Sigma for quality improvement?
a) Fishbone diagram
b) Pareto chart
c) Gantt chart
d) Control chart
Correct Answers: a) Fishbone diagram, b) Pareto chart, d)
Control chart
Rationale: These tools are used for identifying, analyzing, and
prioritizing quality problems and monitoring process performance.
5. Multiple Choice: In the context of Lean, what does 'Gemba'
refer to?
a) The place where value is created
b) A form of waste
c) A high-level project management office
d) The end product delivered to the customer
Correct Answer: a) The place where value is created
©LU 2024/2025
