CPC Construction Project Management & Planning 2 — Questions and Answers
Question 1: Which scheduling technique uses probability distributions to account for uncertainty in activity durations?
- Critical Path Method (CPM)
- Monte Carlo Simulation (Correct answer)
- Gantt Chart Analysis
- Resource Leveling
Correct answer: Monte Carlo Simulation
Monte Carlo Simulation runs thousands of iterations with probabilistic inputs to model schedule uncertainty and produce risk-adjusted completion forecasts.
Question 2: A contractor is preparing a bid for a road project. The project owner has specified a Lump Sum contract. What is the primary risk the contractor assumes?
- Differing site conditions beyond owner-disclosed data
- All cost overruns due to quantity variations (Correct answer)
- Design errors made by the owner's engineer
- Changes in applicable tax rates after award
Correct answer: All cost overruns due to quantity variations
Under a lump sum contract, the contractor bears the risk of quantity variations; if actual quantities exceed estimates, the contractor absorbs the additional cost.
Question 3: What does the term 'float' mean in the context of a project schedule?
- The contingency budget reserved for schedule delays
- The amount of time an activity can be delayed without delaying the project completion (Correct answer)
- The overlap between predecessor and successor activities
- The time buffer added to each activity duration estimate
Correct answer: The amount of time an activity can be delayed without delaying the project completion
Float (or slack) is the amount of time an activity can be delayed without affecting either the project completion date (total float) or a successor activity's early start (free float).
Question 4: During a project kickoff meeting, the project manager establishes a Work Breakdown Structure (WBS). What is the primary purpose of the WBS?
- To assign resource costs to each project activity
- To decompose the project scope into manageable, deliverable-oriented components (Correct answer)
- To establish the sequence of construction activities
- To define the organizational chart of the project team
Correct answer: To decompose the project scope into manageable, deliverable-oriented components
The WBS decomposes the total project scope into smaller, manageable work packages that represent the deliverables, not activities or resources.
Question 5: Which contract delivery method transfers the most design and construction risk to a single entity?
- Design-Bid-Build (DBB)
- Construction Manager at Risk (CMAR)
- Design-Build (DB) (Correct answer)
- Multiple Prime Contracting
Correct answer: Design-Build (DB)
Under Design-Build, a single entity is responsible for both design and construction, consolidating the majority of project risk in one contract.
Question 6: A project manager notices that the project's Cost Performance Index (CPI) is 0.85. What does this indicate?
- The project is 15% ahead of schedule
- The project is spending $1.00 for every $0.85 of planned work completed
- The project is delivering $0.85 of value for every $1.00 spent (Correct answer)
- The project has used 85% of its total budget
Correct answer: The project is delivering $0.85 of value for every $1.00 spent
A CPI of 0.85 means the project is only earning $0.85 of planned value for every $1.00 actually spent, indicating a cost overrun situation.
Question 7: A subcontractor's activity has a large amount of total float but zero free float. What does this situation imply?
- The activity is on the critical path and cannot be delayed
- Delaying the activity will not delay the project but will delay a successor activity's early start
- The activity has scheduling flexibility that is shared with downstream activities (Correct answer)
- The activity can be delayed indefinitely without any consequence
Correct answer: The activity has scheduling flexibility that is shared with downstream activities
Zero free float with positive total float means any delay to that activity immediately delays a successor's early start, though the overall project completion may still not be affected.
CPC Construction Project Management & Planning 2
Which scheduling technique uses probability distributions to account for uncertainty in activity durations?