Six Sigma

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Week 01: Six Sigma Advanced Improve and Control Phases Quiz 
Answers 
Quiz 1: Root Cause Analysis Practice Quiz 
Q1. The seven-step improvement model is radically different from DMAIC or 
PDCA. 
• True 
• False 
Q2. A Trial solution could be implemented as a pilot or a simulation 
• True 
• False 
Q3. The 7-step model is linear. When you complete a step you cannot go back. 
• True 
• False 
Q4. In the 7-step model, once you have implemented the solution, it is time to 
move on to the next improvement opportunity. 
• True 
• False 
Q5. The various quality tools are dedicated to particular steps in the 
improvement model. 
• True 
• False 
Q6. Drill Deep and Wide is another improvement model. 
• True 
• False 
Q7. Drill Deep and Wide is used to analyze systemic problems by examining 
what three potential failure areas? 
• Prevention, Prognosis and Prediction 
• Prevention Protection and Prediction 
• Prevention, Protection and Prognosis 
• Prognosis, Protection and Prediction 
Q8. “Is / Is not” is a tool to explore the details of a problem to identify what 
elements to focus on. 
• True 
• False 
Q9. In an X, Y Relational Matrix, the relationship between inputs and outputs is 
analyzed. 
• True 
• False 
Q10. A Root cause tree is can be seen as a hybrid of a fishbone diagram and 5 
whys. 
• True 
• False 
Quiz 2: Root Cause Analysis Graded Quiz 
Q1. The seven step improvement model is fairly similar to DMAIC and PDCA. 
• True 
• False 
Q2. In an X, Y Matrix, Values are weighted based on: 
• Management intuition 
• Customer Importance 
• Cost Savings 
• Process data 
Q3. The purpose of the X,Y Matrix is to: 
• Prioritize possible solutions 
• Identify possible solutions 
• Prioritize possible causes 
• Identify possible causes 
Q4. Counter measures are a whole new class of improvement tools. 
• True 
• False 
Q5. Right sized equipment favors small increments of capacity. 
• True 
• False 
Q6. Point of Use Storage reduces which two of the eight wastes? 
• Over processing and waiting 
• Transportation and inventory 
• Motion and waiting 
• Over production and defects 
Q7. Source inspection means increasing the amount of inspection. 
• True 
• False 
Q8. Driving down changeover time, can also result in less Work in Process 
inventory and shorter cycle times. 
• True 
• False 
Q9. The first step in SMED it to apply 5S to the workplace. 
• True 
• False 
Q10. Internal elements are those changeover activities which occur when the 
machine is stopped. 
• True 
• False 
Week 02: Six Sigma Advanced Improve and Control Phases Quiz 
Answers 
Quiz 1: Lean Tools Graded Quiz 
Q1. The first principle of Lean is to specify value. Who determines value? 
• Management 
• Shareholders 
• Sales 
• Customers 
Q2. What tool can we use to identify all the steps in the value stream? 
• Failure Mode and Effects Analysis 
• Value Stream Mapping 
• Cause and Effect Diagram 
• Correlation and Regression 
Q3. Flow means that work should move smoothly through the process with 
minimal stops and starts, and minimal wait times. 
• True 
• False 
Q4. What are the four lean goals? 
• Reduce Inspection, Eliminate Waste, Reduce Lead Time, Reduce Total 
Costs 
• Improve Quality, Eliminate Waste, Reduce Lead Time, Reduce total costs 
• Improve Quality, Eliminate Waste, Reduce Cycle time, Reduce total 
costs 
• Improve Quality, Eliminate Waste, Reduce Lead Time, Cut Costs 
Q5. In a Lean system, the focus is on managing Assets. 
• True 
• False 
Q6. In a pull system, production is triggered by a customer purchase. 
• True 
• False 
Q7. In a lean system, it is important for highly trained leaders to identify and 
implement the necessary improvements. 
• True 
• False 
Q8. In a traditional manufacturing system,95% of the time product is in the 
manufacturing facility is non-value added. 
• True 
• False 
Q9. Lean is more cost effective by immediately cutting expenditures that do not 
benefit the organization immediately 
• True 
• False 
Q10. Efficiency improvements through lean are usually limited to internal 
measures, and do not have real financial benefits. 
• True 
• False 
Week 03: Six Sigma Advanced Improve and Control Phases Quiz 
Answers 
Quiz 1: SPC and Control Plan Graded Quiz 
Q1. A common cause is due to _ whereas a special cause is considered _ 
• no training, inadequate supervision skills 
• non-inherent events, random chance 
• chance, assignable 
• poor planning, an inherent part of the design 
Q2. Individuals (X-chart) and Moving Range charts are best for all of the 
following except 
• out of control processes 
• destructive testing 
• low production rates 
• transaction processing 
Q3. If we see nine points on the same side of the centerline, this indicates that 
the central tendency of the process is 
• Trending 
• Flirting 
• Stratifying 
• Drifting 
Q4. Variables control charts are more sensitive than attributes charts and 
therefore more 
• Powerful 
• Confusing 
• Complicated 
• Reliable 
Q5. Sampling done in time order, by process is called 
• Cluster Sampling 
• Convenience Sampling 
• Systematic sampling 
• Instant-of-time method sampling 
Q6. The advantages of variables control charts include all the following except 
• Detailed data on the degree of the non-conformity 
• More information about causes for corrective action 
• Smaller sample sizes 
• reduced number of charts 
Q7. Control charts are easy to set, but very difficult to 
• Maintain 
• Understand 
• Use 
• Deploy 
Q8. Deming believed that _ of all problems are due to special causes. 
• 100% 
• 85% 
• 50% 
• 15% 
Q9. Some typical signs that our process is out of control include all the 
following except 
• trends 
• values outside the control limits 
• cycles 
• flips 
Q10. P and np charts focus on proportion whereas c and u focus on the non-
conformity itself 
• True 
• False 
Week 04: Six Sigma Advanced Improve and Control Phases Quiz 
Answers 
Quiz 1: Lean Tools for Process Control Graded Quiz 
Q1. The initiatives of TPM can be summarized as an avoidance of reduced, idled 
or stopped performance due to all below except 
• taking breaks 
• downtime associated with nonconforming product 
• reducing the time spent on setups or changeovers 
• equipment breakdown 
Q2. The most current evolution of TPM is _ 
• Breakdown Maintenance 
• Preventative Maintenance 
• Productive Maintenance 
• Corrective Maintenance 
Q3. TPM relies of data pertaining to equipment 
• Downtime 
• Life cycle 
• Utilization 
• Inefficiency 
Q4. Changeovers are required when a setup is needed to satisfy a model 
variance requirement 
• True 
• False 
Q5. Availability is specifically the 
• potential available time 
• actual operating time 
• planned downtime 
• unplanned downtime 
Q6. Once the level of absent information is known, the organization can 
• Communicate 
• Celebrate 
• Have a meeting 
• Determine the extent of visual devices that are needed 
Q7. Performance loss is 
• the actual performance time 
• unplanned downtime 
• the sum of losses during equipment operation 
• the operating time 
Q8. Make sure to communicate successes and keep the organization current 
regarding 
• Safety 
• Quality 
• Productivity 
• All of the above 
Q9. Idling and minor stoppages are intervals of inactivity that may be caused by 
• Quality issues 
• A lack of material 
• Rework 
• Breaks 
Q10. Quality loss is the sum of losses during equipment operation due to 
customer issues and rework 
• True 
• False