Which of the following statements regarding project management is false?

Which of the following statements regarding project management is false?

a. Project organization works well when the work contains simple, independent tasks.

b. Gantt charts give a timeline for each of a project’s activities, but do not adequately show the interrelationships of activities.

c. Project organization is most suitable for projects that are temporary but critical to the organization.

d. All of the above are true.

e. None of the above are true.

2. Which of the following statements regarding Gantt charts is true?

a. Gantt charts are visual devices that show the duration of activities in a project.

b. Gantt charts give a timeline and precedence relationships for each activity of a project.

c. Gantt charts use the four standard spines of Methods, Materials, Manpower, and Machinery.

d. Gantt charts are expensive.

e. All of the above are true.

3. Which of the following statements regarding PERT times is true?

a. Optimistic time estimate is an estimate of the minimum time an activity will require.

b. Optimistic time estimate is an estimate of the maximum time an activity will require.

c. The probable time estimate is calculated as t = (a + 4m + b)/6.

d. Pessimistic time estimate is an estimate of the minimum time an activity will require.

e. Most likely time estimate is an estimate of the maximum time an activity will require.

4. Which of the following statements regarding critical paths is true?

a. The shortest of all paths through the network is the critical path.

b. Some activities on the critical path may have slack.

c. Every network has exactly one critical path.

d. On a specific project, there can be multiple critical paths, all with exactly the same duration.

e. The duration of the critical path is the average duration of all paths in the project network.

5. Which of the following statements regarding CPM is false?

a. The critical path is the shortest of all paths through the network.

b. The critical path is that set of activities that has positive slack.

c. Some networks have no critical path.

d. All activities on the critical path have their LS equal EF.

e. All of the above are false.

6. Which of the following statements concerning CPM activities is false?

a. The late finish of an activity is the earliest late start of all preceding activities.

b. The early finish of an activity is the early start of that activity plus its duration.

c. The late finish is the earliest of the late start times of all successor activities.

d. The late start of an activity is its late finish less its duration.

e. The early start of an activity is the latest early finish of all preceding activities.

7. Which of the following statements regarding CPM networks is true?

a. The early finish of an activity is the latest early start of all preceding activities.

b. The late finish of an activity is the earliest late start of all preceding activities.

c. On a specific project, there can be multiple critical paths, all of which will have exactly the same duration.

d. A project does not have to have a critical path.

e. All of the above are true.

8. Activities that are not on a PERT critical path but have little slack need to be monitored closely because

a. PERT treats all activities as equally important

b. near-critical paths could become critical paths with small delays in these activities

c. they are causing the entire project to be delayed

d. slack is undesirable and needs to be eliminated

e. they have a high risk of not being completed

9. Which of the following statements regarding project management is true?

a. Both PERT and CPM require that network tasks have unchanging durations.

b. Shortening the project by assigning more resources to one or more of the critical tasks is called “project crashing.”

c. Crashing need not consider the impact of crashing an activity on other paths in the network.

d. Project crashing is an optimizing technique.

e. Crash cost depends upon the variance of the activity to be crashed.

10. Which of these statements regarding time-cost tradeoffs in CPM networks is true?

a. Crashing is not possible unless there are multiple critical paths.

b. Crashing a project often reduces the length of long-duration, but non-critical, activities.

c. Activities not on the critical path can never be on the critical path, even after crashing.

d. Crashing shortens the project duration by assigning more resources to one or more of the critical tasks.

e. None of the above.

11. Which of the following statements regarding time-cost tradeoffs in CPM networks is false?

a. Shortening the project duration by assigning more resources to one or more of the critical tasks is called “project crashing.”

b. Crashing procedures must consider the impact of crashing an activity on all paths in the network.

c. Crashing sometimes has the reverse result of lengthening the project duration.

d. Activities not on the critical path can become critical after crashing takes place.

e. All of the above are true.

12. Which of the following statements regarding project management is false?

a. Project management differs from the management of more traditional activities due to the limited lifetime of projects.

b. Dummy activities are added to paths to make all paths of equal length, analogous to adding slack variables in linear programming.

c. A Gantt chart contains no precedence relationships, but may be useful for simple projects.

d. Dummy activities consume no time.

e. Slack is the amount of time an activity can be delayed without delaying the entire project, assuming its preceding activities are completed as early as possible.

13. Which of the following statements regarding time-cost tradeoffs in CPM networks is true?

a. Crashing shortens the critical path by assigning more resources to one or more non-critical tasks.

b. Crashing is not possible unless there are multiple critical paths.

c. Crashing a project reduces the length of critical activities only.

d. Project crashing is not effective when applied to tasks with zero slack.

e. All of the above are false.

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