Question 1

The network analysis method that allows activity times to vary is __________.

Accepted Answer

PERT or Pr

Question 2

The main difference between PERT and CPM is that

Accepted Answer

A)  PERT is more accurate than CPM 
B)  PERT assumes that activity durations are known 
C)  PERT ignores activity costs 
D)  CPM assumes that activity durations can vary 
E)  None of the above are true 
A)  PERT is more accurate than CPM 
B)  PERT assumes that activity durations are known 
C)  PERT ignores activity costs 
D)  CPM assumes that activity durations can vary 
E)  None of the above are true

Question 3

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 4

What was the name of the construction project to rebuild the Pentagon after the terrorist attacks on Sept. 11, 2001?

Accepted Answer

A)  Project Panther 
B)  Project Pit Bull 
C)  Project Python 
D)  Project Piranha 
E)  Project Phoenix 
A)  Project Panther 
B)  Project Pit Bull 
C)  Project Python 
D)  Project Piranha 
E)  Project Phoenix

Question 5

Which of the following statements regarding CPM is true?

Accepted Answer

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 to the maximum EF of all immediate predecessors. 
E)  All of the above are 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 to the maximum EF of all immediate predecessors. 
E)  All of the above are False.

Question 6

Which of the following statements regarding PERT times is true?

Accepted Answer

A)  The optimistic time estimate is an estimate of the minimum time an activity will require. 
B)  The 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). 
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. 
A)  The optimistic time estimate is an estimate of the minimum time an activity will require. 
B)  The 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). 
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.

Question 7

The __________ has established a code of ethics especially for project managers.

Accepted Answer

Project Ma

Question 8

Which of the following statements concerning CPM activities is False?

Accepted Answer

A)  The early finish of an activity is the early start of that activity plus its duration. 
B)  The late finish is the earliest of the late start times of all successor activities. 
C)  The late start of an activity is its late finish less its duration. 
D)  The late finish of an activity is the earliest late start of all preceding activities. 
E)  The early start of an activity is the latest early finish of all preceding activities. 
A)  The early finish of an activity is the early start of that activity plus its duration. 
B)  The late finish is the earliest of the late start times of all successor activities. 
C)  The late start of an activity is its late finish less its duration. 
D)  The late finish of an activity is the earliest late start of all preceding activities. 
E)  The early start of an activity is the latest early finish of all preceding activities.

Question 9

A project organization that becomes permanent is often referred to as a __________.

Accepted Answer

A)  fixed project organization 
B)  matrix organization 
C)  normal organization 
D)  standard organization 
E)  none of the above 
A)  fixed project organization 
B)  matrix organization 
C)  normal organization 
D)  standard organization 
E)  none of the above

Question 10

Activity D on a CPM network has predecessors B and C, and has successor F. D has duration 6. B's earliest finish is 18, while C's is 20. F's late start is 26. Which of the following is definitely true?

Accepted Answer

A)  B is a critical activity. 
B)  C is completed before B. 
C)  D has no slack but is not critical. 
D)  D is critical and has zero slack. 
E)  F is critical and has zero slack. 
A)  B is a critical activity. 
B)  C is completed before B. 
C)  D has no slack but is not critical. 
D)  D is critical and has zero slack. 
E)  F is critical and has zero slack.

Question 11

An activity on a PERT network has these time estimates: optimistic = 2, most likely = 3, and pessimistic = 8. Its expected time and variance (if it is a critical activity) are

Accepted Answer

A)  3.67; 1 
B)  3.67; 6 
C)  4.33; 1 
D)  4.33; 6 
E)  none of these 
A)  3.67; 1 
B)  3.67; 6 
C)  4.33; 1 
D)  4.33; 6 
E)  none of these

Question 12

A contractor's project being analyzed by PERT has an estimated time for the critical path of 120 days. The sum of all activity variances is 81; the sum of variances along the critical path is 64. The probability that the project will take 130 or more days to complete is

Accepted Answer

A)  0.1057 
B)  0.1335 
C)  0.8512 
D)  0.8943 
E)  1.29 
A)  0.1057 
B)  0.1335 
C)  0.8512 
D)  0.8943 
E)  1.29

Question 13

Consider the network pictured below.
a. Enumerate all paths through this network.
b. Calculate the critical path for the network.
c. What is the minimum duration of the project?
d. How much slack exists at each activity?

Accepted Answer

(a) Possible paths are P-S (length 22),

Question 14

Identify and describe briefly each of the purposes of project scheduling.

Accepted Answer

Project scheduling shows the relationshi

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Two critical path activities are candidates for crashing on a CPM network. Activity details are in the table below. To cut one day from the project's duration, activity _________ should be crashed first, adding _________ to project cost. $$\begin{array} { | c | c | c | c | c | } 
\hline \text { Activity } & \text { Normal Time } & \text { Normal Cost } & \text { Crash Time } & \text { Crash Cost } \
\hline \text { B } & 4 \text { days } & \$ 6,000 & 3 \text { days } & \$ 8,000 \
\hline \text { C } & 6 \text { days } & \$ 4,000 & 4 \text { days } & \$ 6,000 \
\hline
\end{array}$$

Accepted Answer

A)  B; $2,000 
B)  B; $8,000 
C)  C; $1,000 
D)  C; $2,000 
E)  C; $6,000 
A)  B; $2,000 
B)  B; $8,000 
C)  C; $1,000 
D)  C; $2,000 
E)  C; $6,000

Question 17

Given the critical path below, calculate the following
a. The crash cost per unit time savings for each activity.
b. The maximum total crash time savings and cost.
c. The maximum total time-savings with a $3000 budget.
 $$\begin{array} { | c | c | c | c | c | } 
\hline \text { Activity } & \text { Normal Time } & \text { Normal Cost } & \begin{array} { c } 
\text { Crash } \
\text { Duration }
\end{array} & \text { Crash Cost } \
\hline \text { A } & 8 \text { days } & \$ 8,000 & 7 \text { days } & \$ 12,000 \
\hline \text { B } & 5 \text { days } & \$ 2,000 & 3 \text { days } & \$ 10,000 \
\hline \text { C } & 10 \text { days } & \$ 9,000 & 9 \text { days } & \$ 12,000 \
\hline
\end{array}$$

Accepted Answer

(A) A saves 1 day for $4000/day, B saves

Question 18

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 19

Which of the following statements regarding Bechtel is true?

Accepted Answer

A)  Its competitive advantage is project management. 
B)  Bechtel was the construction contractor for the Hoover Dam. 
C)  While helping to rebuild Iraq, Bechtel's crews had to travel under armed escort. 
D)  Bechtel's procurement program is global in nature. 
E)  All of the above are true. 
A)  Its competitive advantage is project management. 
B)  Bechtel was the construction contractor for the Hoover Dam. 
C)  While helping to rebuild Iraq, Bechtel's crews had to travel under armed escort. 
D)  Bechtel's procurement program is global in nature. 
E)  All of the above are true.

Question 20

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

Accepted Answer

The answer of __________ is the amount of time an...

Exam 3: Project Management

The network analysis method that allows activity times to vary is __________.

The main difference between PERT and CPM is that

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

What was the name of the construction project to rebuild the Pentagon after the terrorist attacks on Sept. 11, 2001?

Which of the following statements regarding CPM is true?

Which of the following statements regarding PERT times is true?

The __________ has established a code of ethics especially for project managers.

Which of the following statements concerning CPM activities is False?

A project organization that becomes permanent is often referred to as a __________.

Activity D on a CPM network has predecessors B and C, and has successor F. D has duration 6. B's earliest finish is 18, while C's is 20. F's late start is 26. Which of the following is definitely true?

An activity on a PERT network has these time estimates: optimistic = 2, most likely = 3, and pessimistic = 8. Its expected time and variance (if it is a critical activity) are

A contractor's project being analyzed by PERT has an estimated time for the critical path of 120 days. The sum of all activity variances is 81; the sum of variances along the critical path is 64. The probability that the project will take 130 or more days to complete is

Consider the network pictured below. a. Enumerate all paths through this network. b. Calculate the critical path for the network. c. What is the minimum duration of the project? d. How much slack exists at each activity?

Identify and describe briefly each of the purposes of project scheduling.

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

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

Which of the following statements regarding Bechtel is true?

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

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