CHAPTER 11 EXERCISES 1. What do the acronyms PERT, GERT, and LSM stand for? 2. is concept of PERT? what the main 3. How does the PERT method work? 4. what are the main differences between CPM and PERT? 5. In a CPM network, the critical path has five activities. Their durations are tabulated next. Duration(Days) Pessimistic(Tp) Most Likely(Tm) optimistic Activity Compute the following: a. The probability that the project will finish by the end of day 32 b. The probability that the project will finish by the end of day 34 c. The probability that the project will finish before day 30 d. The probability that the project will finish on the 32nd day e. The probability that the project will finish no later than the 35th dayf The probability that the project will finish at least 2 days early g. The will finish at least 2 days late probability that the project h. The probability the project will finish the 32nd day +1 day that on i. The completion date with at least a 90% confidence level 6. In a CPM network, the critical path has five activities. Their durations are tabulated next. Compute the following a. The probability that the project will finish by the end of day 64 b. The probability that the project will finish by the end of day 65 c. The probability that the project will finish before day 60 d. The probability that the project will finish on the 62nd day e. The probability that the project will finish at least 6 days earlyf. The probability that the project will finish no more than 4 days late g. The completion date with at least 95% confidence level7. In a CPM network, the critical path has six activities. Their durations are tabulated next. Compute the following: a. The probability that the project will finish by the end of day 36 b. The probability that the project will finish by the end of day 39 c. The probability that the project will finish before day 38 d. The probability that the project will finish on the 35th day e. The probability that the project will finish at least 3 days early f The probability that the project will finish more than 4 days late g. The completion date with at least a 90% confidence level 8. Draw the network for the following project. Perform the CPM calculations on the basis of the most likely durations. Pick the longest three paths. Calculate the expected duration and the standard deviation for each path. Considering all three paths, what is the duration of the project with at least a 90% confidence level?9. What is the risk of using PERT and focusing on the critical path only? 10. What types of projects are best for the PERT application? 11. Is PERT popular in the construction industry Why? 12. What is the main difference between PERT and GERT 13. What types of projects are best for the LSM application? 14. What are the steps for preparing an LSM schedule? 15. Define time buffer and distance buffer. Use words and graphs to explain your answer.
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