Question

In the context of construction project management, which of the following statements is/are true:

• A. A dummy activity will consume time and resources.
• B. The programme evaluation and review technique (PERT) is best suited for projects with large uncertainties in the duration of activities.
• C. A Gantt chart is commonly used for identifying the ‘critical path’ of activities in a project.
• D. Free float is the amount of time by which the start of an activity can be delayed without causing a delay in the start of a following activity.

Hint:

In project management, understanding the differences between dummy activities, the critical path, and the float for activities is essential for accurate scheduling and managing uncertainty.

Answer 1

The Correct Option is B, D

- Option (A): A dummy activity does not consume time or resources. It is used to represent logical relationships between activities in network diagrams.
- Option (B): The PERT method is indeed most suitable for projects where there is high uncertainty in the durations of activities, as it incorporates probabilistic estimates for activity durations.
- Option (C): A Gantt chart is a bar chart used for planning and scheduling but does not specifically identify the critical path. The critical path method (CPM) is used for identifying the critical path.
- Option (D): Free float refers to the amount of time an activity can be delayed without affecting the start of a following activity.
Thus, the correct answers are (B) and (D).