C2 Quality Assurance and Improvement 2

Question 1

Which quality improvement tool is best suited for identifying the root cause of a recurring defect by repeatedly asking 'why' until the underlying cause is found?

Accepted Answer

5 Whys

Answer

The 5 Whys technique drills down to the root cause by iteratively asking why a problem occurred.

Question 2

A process is said to be 'in statistical control' when:

Accepted Answer

Only common cause variation is present

Answer

Statistical control means only natural, common cause variation exists with no special cause signals.

Question 3

A Gauge R&R study is conducted primarily to:

Accepted Answer

Assess measurement system variation

Answer

Gauge Repeatability and Reproducibility (R&R) quantifies how much variation comes from the measurement system itself.

Question 4

In Six Sigma, the term 'CTQ' stands for:

Accepted Answer

Critical to Quality

Answer

CTQ (Critical to Quality) characteristics are measurable product or process features directly tied to customer requirements.

Question 5

Which of the following best describes a 'mistake-proofing' device in quality management?

Accepted Answer

A device that prevents or detects errors before they become defects

Answer

Mistake-proofing (Poka-Yoke) uses physical or procedural mechanisms to prevent errors from occurring or escaping.

C2 Practice Test

C2 Practice Test

C2 Quality Assurance and Improvement 2