CCM Quality Management Principles 2 ā Questions and Answers
Question 1: Which quality management tool is used to identify the root cause of a defect by repeatedly asking 'why' until the underlying issue is found?
- Pareto Chart
- Five Whys Analysis (Correct answer)
- Control Chart
- Scatter Diagram
Correct answer: Five Whys Analysis
The Five Whys technique iteratively asks 'why' a problem occurred to drill down to the root cause rather than treating symptoms.
Question 2: In construction quality management, a 'punch list' is best described as:
- A list of subcontractors scheduled for work
- A document listing incomplete or deficient items requiring correction before final acceptance (Correct answer)
- A schedule of quality inspections
- A log of change orders submitted by contractors
Correct answer: A document listing incomplete or deficient items requiring correction before final acceptance
A punch list documents items that must be completed or corrected before substantial or final completion is granted.
Question 3: What does 'conformance to requirements' mean in the context of construction quality?
- Meeting the lowest possible cost threshold
- Ensuring work matches specified standards and contract documents (Correct answer)
- Satisfying only the owner's verbal preferences
- Achieving the fastest possible schedule
Correct answer: Ensuring work matches specified standards and contract documents
Conformance to requirements means that construction work meets all criteria defined in project specifications and contract documents.
Question 4: A construction manager notices concrete test cylinders are consistently failing at 28 days. Which action reflects a corrective action approach?
- Increasing the frequency of cylinder tests
- Investigating the water-cement ratio and adjusting the mix design (Correct answer)
- Documenting the failures and moving on
- Requesting the owner accept lower strength concrete
Correct answer: Investigating the water-cement ratio and adjusting the mix design
Corrective action addresses the root causeāin this case, reviewing and adjusting the concrete mix designānot just documenting the symptom.
Question 5: Which of the following best describes 'prevention costs' in quality cost accounting?
- Costs to repair defective work after completion
- Costs incurred to avoid defects from occurring, such as training and planning (Correct answer)
- Costs of testing and inspecting finished work
- Legal costs from owner claims
Correct answer: Costs incurred to avoid defects from occurring, such as training and planning
Prevention costs are investments made upfrontātraining, planning, process designāto keep defects from occurring in the first place.
Question 6: On a control chart, what does a point falling outside the Upper Control Limit (UCL) indicate?
- The process is performing within acceptable variation
- A common cause of variation
- A special or assignable cause of variation requiring investigation (Correct answer)
- The project is ahead of schedule
Correct answer: A special or assignable cause of variation requiring investigation
A point outside the UCL signals a special cause variationāan unusual event that warrants investigation and corrective action.
Question 7: ISO 9001 is best characterized as a quality management standard that emphasizes:
- Prescribing exact construction methods and materials
- A process-based approach with documented procedures and continual improvement (Correct answer)
- Minimizing project cost above all else
- Eliminating all contractor discretion
Correct answer: A process-based approach with documented procedures and continual improvement
ISO 9001 focuses on establishing a process-based quality management system with documented procedures, customer focus, and continual improvement.
CCM Quality Management Principles 2
Which quality management tool is used to identify the root cause of a defect by repeatedly asking 'why' until the underlying issue is found?