Question 1

The phases of project management are

Accepted Answer

A) planning,scheduling,and controlling. 
B) planning,programming,and budgeting. 
C) planning,organizing,staffing,leading,and controlling. 
D) different for manufacturing projects than for service projects. 
E) GANTT,CPM,and PERT. 
A) planning,scheduling,and controlling. 
B) planning,programming,and budgeting. 
C) planning,organizing,staffing,leading,and controlling. 
D) different for manufacturing projects than for service projects. 
E) GANTT,CPM,and PERT. A

Question 2

________ is the amount of time an individual activity in a network can be delayed without delaying the entire project.

Accepted Answer

Slack time

Question 3

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

Accepted Answer

A) True 
 B)False  True

Question 4

Which of the following statements regarding PERT analysis is true?

Accepted Answer

A) Each activity has two estimates of its duration. 
B) Project variance is the sum of all activity variances. 
C) Project standard deviation is the sum of all critical activity standard deviations. 
D) Only critical activities contribute to the project variance. 
E) Only non-critical activities contribute to the project variance. 
A) Each activity has two estimates of its duration. 
B) Project variance is the sum of all activity variances. 
C) Project standard deviation is the sum of all critical activity standard deviations. 
D) Only critical activities contribute to the project variance. 
E) Only non-critical activities contribute to the project variance.

Question 5

An activity on a PERT network has these time estimates: optimistic = 2,most likely = 5,and pessimistic = 10.Its expected time is

Accepted Answer

A) 5.00. 
B) 5.33. 
C) 5.67. 
D) 17.00. 
E) 0.533. 
A) 5.00. 
B) 5.33. 
C) 5.67. 
D) 17.00. 
E) 0.533.

Question 6

Which of the following statements regarding PERT times is true?

Accepted Answer

A) The expected time is an estimate of the time an activity will require if everything goes as planned. 
B) The optimistic time estimate is an estimate of the maximum time an activity will require. 
C) The expected time estimate is calculated as t = (a + 4m + b)/6. 
D) The pessimistic time estimate is an estimate of the minimum time an activity will require. 
E) The most likely time estimate is an estimate of the maximum time an activity will require. 
A) The expected time is an estimate of the time an activity will require if everything goes as planned. 
B) The optimistic time estimate is an estimate of the maximum time an activity will require. 
C) The expected time estimate is calculated as t = (a + 4m + b)/6. 
D) The pessimistic time estimate is an estimate of the minimum time an activity will require. 
E) The most likely time estimate is an estimate of the maximum time an activity will require.

Question 7

The critical path for the network activities shown below is ________ with duration ________.

Accepted Answer

A) A-B-D;10 
B) A-B-E;11 
C) C-E;12 
D) A-D-E;13 
E) A-B-C-D-E;22 
A) A-B-D;10 
B) A-B-E;11 
C) C-E;12 
D) A-D-E;13 
E) A-B-C-D-E;22

Question 8

Define slack.

Accepted Answer

Slack is the amount of time an

Question 9

What are the earliest activity start time and latest activity start time,and how are they computed?

Accepted Answer

The earliest start time is the earliest

Question 10

The PERT pessimistic time estimate is an estimate of the minimum time an activity will require.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) "Project Crashing" shortens project duration by assigning more resources to critical tasks. 
B) Crashing sometimes has the reverse result of lengthening the project duration. 
C) Crashing must consider the impact of crashing an activity on all paths in the network. 
D) Activities not on the critical path can become critical after crashing takes place. 
E) All of the above are false. 
A) "Project Crashing" shortens project duration by assigning more resources to critical tasks. 
B) Crashing sometimes has the reverse result of lengthening the project duration. 
C) Crashing must consider the impact of crashing an activity on all paths in the network. 
D) Activities not on the critical path can become critical after crashing takes place. 
E) All of the above are false.

Question 12

A project being analyzed by PERT has 60 activities,13 of which are on the critical path.If the estimated time along the critical path is 214 days with a project variance of 100,the probability that the project will take 224 days or more to complete is

Accepted Answer

A) near zero. 
B) 0.0126. 
C) 0.1587. 
D) 0.8413. 
E) 2.14. 
A) near zero. 
B) 0.0126. 
C) 0.1587. 
D) 0.8413. 
E) 2.14.

Question 13

A simple CPM network has three activities,D,E,and F.D is an immediate predecessor of E and of F.E is an immediate predecessor of F.The activity durations are D = 5,E = 4,F = 9.

Accepted Answer

A) The critical path is D-E-F,duration 18. 
B) The critical path is D-F,duration 14. 
C) Slack at D is 4 units. 
D) Slack at E is 4 units. 
E) The network has two critical paths. 
A) The critical path is D-E-F,duration 18. 
B) The critical path is D-F,duration 14. 
C) Slack at D is 4 units. 
D) Slack at E is 4 units. 
E) The network has two critical paths.

Question 14

Briefly discuss what is meant by critical path analysis.What are critical path activities and why are they important?

Accepted Answer

The critical path consists of those task

Question 15

What are the three phases of a project? Describe each in a sentence or two.

Accepted Answer

The three phases are planning,scheduling

Question 16

A network consists of the activities in the following list.Times are given in weeks.
   a.Draw the network diagram.
b.Calculate the ES,EF,LS,LF,and Slack for each activity.
c.What is project completion time?

Accepted Answer

The answer of A network consists of the activities in...

Question 17

Work Breakdown Structure is a useful tool in project management because it addresses the timing of individual work elements.

Accepted Answer

A) True 
 B)False

Question 18

If an activity whose normal duration is 13 days can be shortened to 10 days for an added cost of $1,500,the crash cost per period is

Accepted Answer

A) $500. 
B) $1,500. 
C) $750. 
D) $13,000. 
E) $15,000. 
A) $500. 
B) $1,500. 
C) $750. 
D) $13,000. 
E) $15,000.

Question 19

In PERT analysis,the identification of the critical path can be incorrect if a noncritical activity takes substantially more than its expected time.

Accepted Answer

A) True 
 B)False

Question 20

In project management,crashing an activity must consider the impact on all paths in the network.

Accepted Answer

A) True 
 B)False

Exam 3: Project Management

The phases of project management are

________ is the amount of time an individual activity in a network can be delayed without delaying the entire project.

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

Which of the following statements regarding PERT analysis is true?

An activity on a PERT network has these time estimates: optimistic = 2,most likely = 5,and pessimistic = 10.Its expected time is

Which of the following statements regarding PERT times is true?

The critical path for the network activities shown below is ________ with duration ________.

Define slack.

What are the earliest activity start time and latest activity start time,and how are they computed?

The PERT pessimistic time estimate is an estimate of the minimum time an activity will require.

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

A project being analyzed by PERT has 60 activities,13 of which are on the critical path.If the estimated time along the critical path is 214 days with a project variance of 100,the probability that the project will take 224 days or more to complete is

A simple CPM network has three activities,D,E,and F.D is an immediate predecessor of E and of F.E is an immediate predecessor of F.The activity durations are D = 5,E = 4,F = 9.

Briefly discuss what is meant by critical path analysis.What are critical path activities and why are they important?

What are the three phases of a project? Describe each in a sentence or two.

A network consists of the activities in the following list.Times are given in weeks. a.Draw the network diagram. b.Calculate the ES,EF,LS,LF,and Slack for each activity. c.What is project completion time?

Work Breakdown Structure is a useful tool in project management because it addresses the timing of individual work elements.

If an activity whose normal duration is 13 days can be shortened to 10 days for an added cost of $1,500,the crash cost per period is

In PERT analysis,the identification of the critical path can be incorrect if a noncritical activity takes substantially more than its expected time.

In project management,crashing an activity must consider the impact on all paths in the network.

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The critical path for the network activities shown below is with duration .