Certified Six Sigma Black Belt Exam Trivia 5

Question 1

The concept of 'Takt Time' in lean manufacturing is calculated as:

Accepted Answer

Available production time divided by customer demand rate

Answer

Takt time = Available production time ÷ Customer demand rate; it sets the pace of production to match customer demand.

Question 2

Which Six Sigma chart is most appropriate for monitoring the proportion of defective items in large, variable-sized samples?

Accepted Answer

p-chart

Answer

The p-chart monitors the proportion (fraction) of defective items in samples of varying size, making it appropriate for attribute data with variable subgroup sizes.

Question 3

In the context of Six Sigma, 'rolled throughput yield' (RTY) measures:

Accepted Answer

Probability that a unit passes through all process steps without any defect

Answer

RTY is the product of individual step yields across all process steps — it reflects the true probability of producing a defect-free unit end-to-end without any rework.

Question 4

Which executive at General Electric is most famous for championing Six Sigma in the 1990s and making it a corporate standard?

Accepted Answer

Jack Welch

Answer

Jack Welch, GE's CEO from 1981–2001, mandated Six Sigma across all GE businesses in 1995, making it the most visible corporate Six Sigma deployment of the era.

Question 5

A 'fishbone diagram' is also commonly known as which of the following?

Accepted Answer

Cause-and-effect diagram

Answer

A fishbone diagram is formally called a cause-and-effect diagram (also an Ishikawa diagram), with the 'fishbone' name coming from its branching visual shape.

Certified Six Sigma Black Belt Exam Practice Test

Certified Six Sigma Black Belt Exam Practice Test

Certified Six Sigma Black Belt Exam Trivia 5