Select the correct statement. A. Activity arrows in a CPM network are drawn to scale B. The tail of an arrow represents the finish of an activity C. Arrow bead represents the start of an activity D. None of the above

Activity arrows in a CPM network are drawn to scale
The tail of an arrow represents the finish of an activity
Arrow bead represents the start of an activity
None of the above

The correct answer is: D. None of the above

  • A. Activity arrows in a CPM network are drawn to scale is incorrect. Activity arrows in a CPM network are not drawn to scale. They are drawn to represent the logical flow of activities, not the actual time it takes to complete each activity.
  • B. The tail of an arrow represents the finish of an activity is incorrect. The tail of an arrow represents the start of an activity. The head of the arrow represents the finish of an activity.
  • C. Arrow bead represents the start of an activity is incorrect. The arrow bead represents the intersection of two activities. It does not represent the start or finish of an activity.

A critical path method (CPM) network is a graphical representation of the sequence of activities required to complete a project. The network shows the dependencies between activities and the estimated time required to complete each activity. The critical path is the longest path through the network and determines the shortest possible time to complete the project.

CPM networks are used to plan and schedule projects. They can also be used to identify potential risks and delays.