Question 1

The latest starting time for an activity is equal to the latest finish time minus the activity time.

Accepted Answer

A) True 
 B)False

Question 2

The main function of dummy activities is to clarify relationships in network diagrams.

Accepted Answer

A) True 
 B)False

Question 3

At which point does crashing of a project cease?

Accepted Answer

A)   when the project is completed
B)   when no additional crashing is possible
C)   when the cost to crash equals or exceeds the benefit of crashing
D)   when the project is one-half completed
E)   when the team has been disbanded

Question 4

Consider the following work breakdown structure: 
What is the estimated slack time for activity D?

Accepted Answer

A)   0 days
B)   30 days
C)   40 days
D)   50 days
E)   100 days

Question 5

There are four activities on the critical path, and they have standard deviations of 1, 2, 4, and 2 days. The standard deviation of the critical path is:

Accepted Answer

A)   3.
B)   5.
C)   9.
D)   16.
E)   25.

Question 6

Consider the following work breakdown structure: 
What is the estimated slack time for activity A?

Accepted Answer

A)   0 days
B)   20 days
C)   40 days
D)   60 days
E)   100 days

Question 7

Concerning PERT and CPM:

Accepted Answer

A)   These are two different names for essentially the same techniquE.
B)   CPM tends to focus more on the critical path; PERT focuses on the parallel paths.
C)   PERT gives a clearer indication of activity slack, while CPM gives a better picture of path slack.
D)   Because of its recent discovery, much less is known about CPM than PERT.
E)   CPM is useful for project manager selection; PERT is useful for project team selection.

Question 8

A disadvantage of activity-on-node diagrams is the occasional need for dummy activities.

Accepted Answer

A) True 
 B)False

Question 9

Consider the following work breakdown structure: 
What is the estimated slack time for activity W?

Accepted Answer

A)   0 days
B)   25 days
C)   35 days
D)   45 days
E)   85 days

Question 10

Which of the following is not one of the six key decisions in project management?
(I)  Selecting the project team
(II)  Deciding on the project manager's title
(III)  Managing and controlling project resources
(IV)  Deciding which projects to implement
(V)  Selecting the project manager

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 11

Consider the following work breakdown structure: 
What is the estimated standard deviation in the time for activity E?

Accepted Answer

A)   1 days
B)   2 days
C)   3 days
D)   4 days
E)   5 days

Question 12

The advantage a precedence diagram has over a Gantt chart is:

Accepted Answer

A)   its ability to reveal relationships among activities.
B)   its difficulty in depicting networks.
C)   its complexity.
D)   its simplicity.
E)   its lack of riskiness.

Question 13

Consider the portion of a project depicted by this graph: 
What is the latest start time of activity 6-7 if the latest finish of activity 7-8 is 26, and the latest finish of activity 7-9 is 23?

Accepted Answer

A)   18
B)   17
C)   13
D)   12
E)   10

Question 14

Path probabilities are calculated by dividing path mean by path standard deviations.

Accepted Answer

A) True 
 B)False

Question 15

The network diagram shows sequential relationships among major activities on a project.

Accepted Answer

A) True 
 B)False

Question 16

A project is represented by the following diagram: 
The expected duration of this project is:

Accepted Answer

A)   13.
B)   15.
C)   20.
D)   52.
E)   81.

Question 17

In the probabilistic approach to project network analysis, the time estimate annotated tm for any activity is the:

Accepted Answer

A)   mean time.
B)   median time.
C)   most likely timE.
D)   mode time.
E)   marginal time.

Question 18

Consider the following work breakdown structure: 
What is the estimated standard deviation in the time for activity D?

Accepted Answer

A)   0 days
B)   2 days
C)   3 days
D)   4 days
E)   12 days

Question 19

A project is represented by the following diagram: 
The critical path for the network shown is:

Accepted Answer

A)   1-3-6-7.
B)   1-2-4-7.
C)   1-4-7.
D)   1-3-4-7.
E)   1-2-5-7.

Question 20

A PERT/CPM activity has an optimistic time estimate of three days, a most likely time estimate of eight days, and a pessimistic time estimate of 10 days. The expected time (in days)  of this activity is:

Accepted Answer

A)   7.0.
B)   7.5.
C)   8.0.
D)   8.5.
E)   10.0.

Exam 23: Project Management

In the probabilistic approach to project network analysis, the time estimate annotated tm for any activity is the:

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Consider the following work breakdown structure: What is the estimated standard deviation in the time for activity D?

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Consider the portion of a project depicted by this graph: What is the latest start time of activity 6-7 if the latest finish of activity 7-8 is 26, and the latest finish of activity 7-9 is 23?

Correct AnswerverifiedShow Answer

Consider the following work breakdown structure: What is the estimated slack time for activity W?

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The main function of dummy activities is to clarify relationships in network diagrams.

Correct AnswerverifiedShow Answer

Consider the following work breakdown structure: What is the estimated slack time for activity D?

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Path probabilities are calculated by dividing path mean by path standard deviations.

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Which of the following is not one of the six key decisions in project management? (I) Selecting the project team (II) Deciding on the project manager's title (III) Managing and controlling project resources (IV) Deciding which projects to implement (V) Selecting the project manager

Correct AnswerverifiedShow Answer

A project is represented by the following diagram: The expected duration of this project is:

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Consider the following work breakdown structure: What is the estimated slack time for activity A?

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The network diagram shows sequential relationships among major activities on a project.

Correct AnswerverifiedShow Answer

Consider the following work breakdown structure: What is the estimated standard deviation in the time for activity E?

Correct AnswerverifiedShow Answer

The latest starting time for an activity is equal to the latest finish time minus the activity time.

Correct AnswerverifiedShow Answer

The advantage a precedence diagram has over a Gantt chart is:

Correct AnswerverifiedShow Answer

A disadvantage of activity-on-node diagrams is the occasional need for dummy activities.

Correct AnswerverifiedShow Answer

There are four activities on the critical path, and they have standard deviations of 1, 2, 4, and 2 days. The standard deviation of the critical path is:

Correct AnswerverifiedShow Answer

A project is represented by the following diagram: The critical path for the network shown is:

Correct AnswerverifiedShow Answer

A PERT/CPM activity has an optimistic time estimate of three days, a most likely time estimate of eight days, and a pessimistic time estimate of 10 days. The expected time (in days) of this activity is:

Correct AnswerverifiedShow Answer

Concerning PERT and CPM:

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At which point does crashing of a project cease?

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