PMI Quality Planning & Control Charts 5

Question 1

Which of the following is an example of an 'internal failure cost' in the Cost of Quality framework?

Accepted Answer

Scrap and rework discovered before delivery

Answer

Internal failure costs are costs of defects found before delivery to the customer, including scrap, rework, and re-inspection — as opposed to external failures caught by customers.

Question 2

A project manager reviews a control chart and finds that 2 out of 35 plotted points fall outside the control limits. What is the MOST appropriate action?

Accepted Answer

Investigate the two out-of-control points for special causes

Answer

Any point outside the control limits is a signal of a special cause and must be investigated, regardless of the proportion of such points.

Question 3

What is the primary purpose of a 'check sheet' in quality data collection?

Accepted Answer

To provide a structured form for collecting and tallying defect occurrence data in real time

Answer

A check sheet is a simple, structured data collection form allowing workers to record defect types and frequencies efficiently at the point of occurrence.

Question 4

When should control charts be recalibrated with new baseline control limits?

Accepted Answer

After a confirmed special cause has been eliminated and the process has fundamentally changed

Answer

Control limits should only be recalculated when a special cause has been identified and permanently removed, representing a genuine change in the process baseline.

Question 5

Which quality tool would BEST help a project team prioritize which defect types to address first based on their relative frequency?

Accepted Answer

Pareto chart

Answer

A Pareto chart ranks defect categories by frequency (or impact), applying the 80/20 rule to help teams focus improvement efforts on the vital few causes.

(PMI) Project Management Institute Certified Practice Test

(PMI) Project Management Institute Certified Practice Test

PMI Quality Planning & Control Charts 5