PROJ 592 Week 6 Quiz Answers (Version 2)
1. Question : (TCO E) Using the network below and the additional information provided, find
(a) the crash cost per day per activity;
(b) which activities should be crashed to meet a project deadline of 12 days at minimum cost; and
(c) what the extra cost is to crash the project.
Activity Normal Time Crash Time Normal Cost Crash Cost
Activity | Normal Time | Crash Time | Normal Cost | Crash Cost |
A | 5 | 3 | $300 | $350 |
B | 3 | 2 | $250 | $325 |
C | 6 | 4 | $400 | $700 |
D | 5 | 3 | $150 | $200 |
2. Question : (TCO E) The following information is extracted from a project to develop a state-of-the-art alternative power energy storage device.
Activity Duration Predecessors Resources
Activity | Duration | Predecessors | Resources |
A | 4 days | — | 1 research engineer |
B | 3 days | A | 1 marketing specialist |
C | 5 days | A | 1 design engineer |
D | 3 days | A | 1 marketing specialist |
E | 3 days | B | 1 prototype builder |
F | 2 days | D | 1 test engineer |
The owner has stipulated that in order to provide continuity throughout the project, the same individual must handle all activities under his or her discipline. Activities on this project cannot be split.
a. Identify any resource conflicts in the above project. State the activities involved, the days that have conflict(s), which resources are involved, and the quantity …
b. Given the owner’s stipulation regarding project continuity and the need to minimize project duration, how can this conflict be resolved? What will … the effect on the project duration?
3. Question: (TCO F) The following data were obtained from an information systems project to upgrade and expand a local area network.
Activity Duration Predecessors Task Budget
Activity | Duration | Predecessors | Resources |
A | 4 days | — | 1 research engineer |
B | 3 days | A | 1 marketing specialist |
C | 5 days | A | 1 design engineer |
D | 3 days | A | 1 marketing specialist |
E | 3 days | B | 1 prototype builder |
F | 2 days | D | 1 test engineer |
At the end of Day 7, the status of the project is as follows.
Activity | % Complete | Actual Cost |
A | 100% | $4,200 |
B | 100% | $8,740 |
C | 100% | $18,250 |
D | 75% | $2,600 |
E | 10% | $560 |
F | 0% | $0 |
(a) Calculate the cost and schedule variances and indexes for Tasks A, B, C, D, and E.
(b) As project manager, write a brief summary of the status of the project at this time.
4. Question : (TCO E) You are project manager for three different projects.
Project A: This project is behind schedule by 12 weeks. It was to have been … in 3 months. The sponsor has additional funds to help complete the project on time if needed but does not want to increase risk to the project.
Project B: This project is scheduled to take 28 weeks to complete. You are in the planning stage of the project. You need to reduce the schedule for this project by 9 weeks. This project has a number of predecessors that were … by the project team’s preference. The sponsor insists on having all the work done on time without unduly increasing risk or costs to the project.
Project C: This project is in the execution stage of the project. It is behind schedule by 8 weeks; it was scheduled to be … in 10 weeks. The sponsor is desperate to accomplish something on this project. The budget is … to the original amount, and all soft predecessors ….
For each of the project above, choose an appropriate schedule compression technique. Explain your choice.
5. Question : (TCO F) Given the following information, calculate the CV, SV, CPI, and SPI for this project. Also provide recommendations to improve the project’s performance if needed.
Hint: Calculate the PV, EV, and AC for each activity. Then get a … PV, EV, and AC for the total project. Using those values calculate the SV, CV, SPI, and CPI for the project. It is not … to evaluate each task individually for this problem.
Activity A: This activity is 75% complete with an original budget of $200,000. Costs to date are $65,000, and the project is at the end of Week 2 of 4.
Activity B: This activity is complete. It was … 3 weeks late, and it was …… in 6 weeks. It was to have cost $500,000. Its true costs were $550,000. Activity C: This activity starts next week. It is … to cost $400,000 and take 6 weeks. Activity D: This activity is 40% complete, at a cost of $80,000. It is at the end of Week 5 of 8 and was … to cost $200,000.