Exam Questions and CORRECT Answers
Specifications of quality characteristics - CORRECT ANSWER - Target or nominal
values: desired value
- Lower specification limit: smallest allowable value - Upper specification limit: largest
allowable value
Nonconforming product: - CORRECT ANSWER - fails to meet one or more specifications
nonconformity - CORRECT ANSWER - specific type of failure
Defect: - CORRECT ANSWER - A nonconformity that is serious enough to significantly
affect the safe or effective use of the product.
Six Sigma/DMAIC - CORRECT ANSWER - variation reduction
Six Sigma: - CORRECT ANSWER - A framework to improve financial
performance by improving quality
By how much must we improve quality (eg, reduce ppm defective) each year to improve from
our current sigma level to our goal sigma level in a given number of years? - CORRECT
ANSWER - A: Goal ppm defective =
Current ppm defective (1-improvement rate)# of years
DMAIC - CORRECT ANSWER - is a structured problem-solving technique consisting of
the following steps:
- Define
- Measure - Analyze - Improve - Control
, Define - CORRECT ANSWER - -Identify project opportunity (not solutions)
-Verify that it has legitimate break through potential
-Create project team
Define Key Documents - CORRECT ANSWER - • Projectcharter
• SIPOC diagram (or other process map)
Project Charter - CORRECT ANSWER - Project Scope, Opportunity, Project Status,
Actions/Open Issues
SIPOC Diagram - CORRECT ANSWER - Suppliers, Inputs, Process, Output, Customers
Tollgates - CORRECT ANSWER - Review process in-between each step of DMAIC to
make sure ready for the next step
Measure - CORRECT ANSWER - What is the current state? Purpose, Value Stream Map,
Variables of Interest, Data, Tools, Measurement
Analyze - CORRECT ANSWER - What is the root cause of the issue? 1st step often
brainstorming. Determine cause and effect relationships and Sources of variability. Control
charts, confidence intervals
Improve - CORRECT ANSWER - How can we fix the problem? Solutions to identified
root causes are identified
• Designed Experiments can be applied to either a physical process or a computer model of the
process
• Pilot test the solution to confirm that it will solve the problem
Control - CORRECT ANSWER - How did our solution work? Complete all remaining
work, Provide the process owner with a process control plan