CPP Quality Control & Process Improvement 2

Question 1

Which statistical tool is most useful for identifying the root cause of recurring equipment failures in a parking facility?

Accepted Answer

Fishbone diagram

Answer

A fishbone (Ishikawa) diagram systematically maps all potential causes of a problem, making it ideal for root cause analysis of recurring failures.

Question 2

A parking facility tracks the number of customer complaints per month over 12 months. This is an example of monitoring which type of metric?

Accepted Answer

Lagging indicator

Answer

Customer complaints are a lagging indicator because they reflect outcomes that have already occurred rather than predicting future performance.

Question 3

In the PDCA cycle, what is the primary purpose of the 'Check' phase?

Accepted Answer

Evaluating results against expected outcomes

Answer

The Check phase involves comparing actual results against the planned objectives to determine if the improvement achieved its goals.

Question 4

Which process improvement methodology focuses specifically on reducing variation and defects to near-zero levels using a five-phase approach?

Accepted Answer

Six Sigma DMAIC

Answer

Six Sigma's DMAIC (Define, Measure, Analyze, Improve, Control) methodology targets defect reduction to 3.4 defects per million opportunities.

Question 5

A parking manager wants to reduce transaction processing time at pay stations. Which Lean tool would best help identify and eliminate non-value-added steps?

Accepted Answer

Value stream mapping

Answer

Value stream mapping visually displays all steps in a process, allowing teams to identify and eliminate waste or non-value-added activities.

(CPP) Certified Parking Professional Practice Test

(CPP) Certified Parking Professional Practice Test

CPP Quality Control & Process Improvement 2