Question

Dummy activities are used in a network to

• A. facilitate computation of slacks
• B. satisfy precedence requirements
• C. determine project completion time
• D. avoid use of resources

Answer 1

Answer:

B. satisfy precedence requirements

Dummy activities are inserted in a network diagram to maintain the logic and satisfy precedence requirements when there is no real activity between two events. It does not consume any resources or time duration. The purpose of a dummy activity is to ensure the computation of slacks and avoid the use of resources. It is represented by dotted lines and used only when necessary.