PK0-005 Tools and Documentation Practice Question
A project manager wants to visualize task dependencies and the critical path for a construction project. Which tool should they use?
⚠ Common exam trap
The trap is confusing Gantt charts with network diagrams — Gantt charts show schedule over time, but only network diagrams explicitly model dependencies and the critical path, which is what the question asks for.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Network diagram
A network diagram (also called a PERT or precedence diagram) is the standard project management tool for visualizing task dependencies and identifying the critical path, because it explicitly shows the sequence of activities, their dependencies, and the longest path through the network. It is the only tool in the list designed specifically for dependency and critical-path analysis.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Burndown chart
Why it's wrong here
A burndown chart tracks remaining work against time, typically within agile iterations, and carries no dependency arrows or critical path. It is tempting because it visualises schedule progress, but it shows effort remaining rather than the task network a construction schedule needs.
- ✓
Network diagram
Why this is correct
A network diagram maps tasks as nodes with arrows showing dependencies, making the longest sequence — the critical path — visible. That directly satisfies the stem's requirement to visualise both task dependencies and the critical path for the construction project.
- ✗
Gantt chart
Why it's wrong here
A Gantt chart displays tasks against a timeline with bars, but does not itself compute or highlight the critical path; that requires a network diagram or PERT chart with float calculations. It is tempting because Gantt charts do show dependencies and schedules, and would suit progress reporting rather than critical path analysis.
- ✗
Milestone chart
Why it's wrong here
A milestone chart plots discrete achievement dates along a timeline, showing neither task dependencies nor the critical path. It is tempting because milestones do mark schedule progress on construction projects, but sequencing logic and float calculations require a scheduling diagram instead.
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Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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