Answer the following.

Reference: Project in Mamangement by Jack r. MEREDITH (GOOGLE)

REVIEW QUESTIONS 1. What is a critical path? (c) List all predecessors of the network finish (F). 2. How is slack determined? 3. How do you determine the ES for an activity with two predecessors? How do you determine the LF for an S 5 F activity with two successors! 4. Will all the activities on a noncritical path have the same slack! Why or why not? 6. What is a "dummy" activity? 5. For the following project, 7. Consider Figure 5.14. Paths a-be and a-b-d conver (a) List all predecessors of task 5. at activity f, but we ignored this potential mer problem in the text. Why? (b) List all predecessors of task 4. 8. What is meant by "project slack!" 176 . CHAPTER 5 / SCHEDULING THE PROJECT 9. When using AON networks, how does one indicate 12. When activity times are known with certainty, the an event such as a project milestone? critical path is defined as the set of activities on a 10. A probabilistic network has a critical path of 21 days path from the project's start event to its finish event and a .95 probability of completing this path in 24 that, if delayed, will delay the completion date of the days. Therefore, the project has a .95 chance of being project. Why must this definition be modified in situ- finished by the end of the 24th day. True or False? ations where the activity times are not known with Briefly explain your answer. certainty? Are there any dangers associated with not 11. "Not uncommonly, the Gantt chart is deceptive in its modifying the definition? apparent simplicity." Briefly explain