The artificial activity; which indicates that an activity following it cannot be started unless, the preceding activity is complete, is known as_________________?
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Answer: E. dummy
Explanation
A dummy activity acts as a logical link indicating that a successor task cannot start until a predecessor completes. Network diagrams use these artificial links to maintain proper precedence relationships without consuming any actual project time. Engineers insert dummy tasks specifically to resolve logical conflicts when drawing complex arrow diagramming method schedules. Dummy activities are represented by dashed arrows in traditional project management network diagrams. They consume zero time and zero resources in the overall critical path method calculation. The primary purpose is to preserve correct logical sequencing and dependency rules between project tasks.
Project managers rely on network diagrams to schedule large construction and manufacturing projects efficiently. Understanding dependencies helps prevent costly delays by identifying which tasks must finish first. Software tools automate these logical relationships, but human planners must understand the underlying principles. Events represent specific points in time marking the start or completion of designated project activities. Free float indicates the amount of time a task can be delayed without delaying any subsequent activities. Constraints are external limitations or restrictions imposed on project schedules rather than internal logical links.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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