Difficulty: Easy
Correct Answer: Minor works
Explanation:
Introduction / Context:
Bar charts, also called Gantt charts, are among the earliest and simplest time–progress visualization tools in construction and project management. This item tests recognition of their most appropriate application scope compared with network-based methods such as CPM and PERT.
Given Data / Assumptions:
Concept / Approach:
Bar charts display activities as horizontal bars on a time axis. They excel at readability for a small number of discrete tasks, quick status checks, and stakeholder communication. However, they do not explicitly show logical dependencies (finish–start, start–start), resource conflicts, or critical paths without extra annotations, limiting their effectiveness for complex or very large projects.
Step-by-Step Solution:
1) Identify what a bar chart conveys: activity name *vs* time window (planned/actual).2) Consider complexity: few activities → clear; many activities → cluttered, hard to trace logic.3) Consider dependency modeling: limited in basic bar charts; networks do better.4) Conclude: Best suited to minor works (small renovations, maintenance jobs, short-duration tasks).
Verification / Alternative check:
Industry guidance places bar charts as appropriate for short scopes and early communication; networks (CPM/PERT) are preferred when interdependencies and critical paths must be managed rigorously.
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
Minor works.
Discussion & Comments