SIX SIGMA FUNDAMENTALS - SAMPLE QUESTIONS

2.1.The DPMO for a process is 860. What is the approximate six sigma level of the process?

a. 4.2 
b. 4.4 
c. 4.6 
d. 4.8

2.2. When describing a process being considered for cycle time reduction, the existing process flows are known as a:

a. Key operation points (KOPS) 

b. Dynamic pull chart 
c. Current state map 
d. Activity network diagram (AND)

2.3. There are a large number of potential human errors. What are possible countermeasures for inexperience?

a. Visual aids and work instructions 
b. Education and/or discipline 
c. Work standardization and discipline 
d. TPM and skill building

2.4. Process flow improvement steps would normally include:

a. Asking what are the significant few 
b. Asking what are the trivial many 
c. Analyzing each step in detail 
d. The use of Pareto diagrams

2.5. Using six sigma methodology, a company at 4.5 sigma would have a failure rate of:

a. 3.4 ppm 
b. 233 ppm 
c. 1350 ppm 
d. 6210 ppm

2.6. The smoothing of the work load in all steps of a process is called:

a. Level loading 
b. Minimal cycle time 
c. Point of use processing 
d. Perfection

2.7. A scatter diagram in which the points plotted appear to form an almost straight band that flows from the lower left to the upper right would be said to display:

a. A positive correlation 
b. No correlation 
c. A higher order relationship 
d. A negative correlation

2.8. Six sigma project methodology normally begins with what initial step?

a. Problem definition 
b. Define 
c. Project charter 
d. Champion approval

2.9. The symbol widely associated with an operator or operator location is which of the following: