CQIA Process Analysis & Improvement Techniques 2

Question 1

A team notices that 20% of defect types account for 80% of total defects. Which tool best visualizes this relationship?

Accepted Answer

Pareto chart

Answer

A Pareto chart displays defect categories in descending order of frequency, making the 80/20 relationship immediately visible.

Question 2

Which of the following best describes a 'value-added' activity in process analysis?

Accepted Answer

An activity the customer would pay for that transforms the product

Answer

A value-added activity directly transforms the product or service in a way the customer recognizes and is willing to pay for.

Question 3

In a SIPOC diagram, what does the 'O' represent?

Accepted Answer

Outputs

Answer

SIPOC stands for Suppliers, Inputs, Process, Outputs, and Customers — 'O' refers to the Outputs produced by the process.

Question 4

A value stream map shows a large amount of inventory between two process steps. This inventory most likely indicates:

Accepted Answer

A bottleneck or imbalance between the two steps

Answer

Excess inventory between steps typically signals a bottleneck or pace mismatch, a form of waste (muda) in lean thinking.

Question 5

Which mistake-proofing device category physically prevents an error from occurring rather than just detecting it?

Accepted Answer

Control poka-yoke

Answer

A control poka-yoke physically stops the process or prevents the incorrect action, making the error impossible.

(CQIA) ASQ Certified Quality Improvement Associate Practice Test