A+ Answers



1. Given the following small project, the critical path is ________ days.

chart

10

14

16

20

Question 2.2. The project described by: chart is best represented by which of the following networks?

 

A
B
C

D

Question 3.3. Managers use the network analysis of PERT and CPM to help them

derive flexibility by identifying noncritical activities.

replan, reschedule, and reallocate resources such as manpower and finances.

plan, schedule, monitor, and control large and complex projects.

All of the above

Question 4.4. PERT

assumes that we do not know ahead of time what activities must be completed.

assumes that activity time estimates follow the normal probability distribution.

is a network technique that uses three time estimates for each activity in a project.

is a deterministic network technique that allows for project crashing.

Question 5.5. Slack time in a network is the

amount of time that an activity would take assuming very unfavorable conditions.

shortest amount of time that could be required to complete the activity.

difference between the expected completion time of the project using pessimistic times and the expected completion time of the project using optimistic times.

amount of time that an activity can be delayed without delaying the entire project.

Question 6.6. Using the data in the table below, what is the minimum possible time required for completing the project? All times are in weeks.

chart

8

12

18

10

Question 7.7. Given an activity’s optimistic, most likely, and pessimistic time estimates of 4, 6, and 14 days respectively, compute the PERT expected activity time for this activity.

8

6

7

9

Question 8.8. In a PERT network, the earliest (activity) start time is the

earliest time that an activity can be finished without delaying the entire project.

latest time that an activity can be started without delaying the entire project.

earliest time that an activity can start without violation of precedence requirements.

latest time that an activity can be finished without delaying the entire project.

Question 9.9. According to the table below, there are five activities in a PERT project. Which activities are on the critical path? chart

A-B-C-D-E

A-C-E

B-D

B-E

Question 10.10. CPM

assumes we do not know ahead of time what activities must be completed.

assumes that activity time estimates follow the normal probability distribution.

is a deterministic network technique that allows for project crashing.

is a network technique that allows three time estimates for each activity in a project.

Question 11.11. Given an activity’s optimistic, most likely, and pessimistic time estimates of 4, 14, and 18 days respectively, compute the PERT expected activity time for this activity.

14

12

11

13

Question 12.12. The project described by: has a critical path of length of ________.

chart

21 days

14 days

23 days

32 days

Question 13.13. Consider a project that has an expected completion time of 60 weeks and a standard deviation of five weeks. What is the probability that the project is finished in 70 weeks or fewer? (Round to two decimals.)

0.98

0.48

0.50

0.02

0.63

Question 14.14. PERT stands for ________.

probabilistic evaluation and review technique

program evaluation and review technique

probability of expected run times

program of expected run times

Question 15.15. Using the table below determine the latest time activity A can be started without delaying the project completion.

chart

4

3

8

6

Question 16.16. Using the table below compute the latest finish time for activity E.

chart

4

10

14

25

Question 17.17. The first step in planning and scheduling a project is to develop the ________.

employee scheduling plan

PERT/CPM network diagram

critical path

work breakdown structure

Question 18.18. Consider a project that has an expected completion time of 50 weeks and a standard deviation of 9 weeks. What is the probability that the project is finished in 57 weeks or fewer? (Round to two decimals.)

0.68

0.78

0.22

0.32

Question 19.19. The process of smoothing out the utilization of resources in a project is called

CPM.

PERT.

project crashing.

 resource leveling.

Question 20.20. Your company is considering submitting a bid on a major project. You determine that the expected completion time is 100 weeks and the standard deviation is 10 weeks. It is assumed that the normal distribution applies. You wish to set the due date for the project such that there is an 85 percent chance that the project will be finished by this time. What due date should be set?

108.0

110.4

89.6

85.0