Question 1

The __________ distribution is used by PERT analysis to calculate expected activity times and variances.

Accepted Answer

A)  Normal 
B)  Beta 
C)  Alpha 
D)  Gaussian 
E)  Binomial 
A)  Normal 
B)  Beta 
C)  Alpha 
D)  Gaussian 
E)  Binomial

Question 2

The ES of an activity that has only one predecessor is simply the EF of that predecessor.

Accepted Answer

A) True 
 B)False

Question 3

A network consists of the activities in the following list. Times are given in weeks.
 $$\begin{array} { | c | c | c | } 
\hline \text { Activity } & \text { Preceding } & \text { Time } \
\hline \text { A } & - - & 8 \
\hline \text { B } & - - & 3 \
\hline \text { C } & \text { A } & 7 \
\hline \text { D } & \text { A, B } & 3 \
\hline \text { E } & \text { C } & 4 \
\hline
\end{array}$$ 
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 4

The time an activity will take assuming very unfavorable conditions is

Accepted Answer

A)  the optimistic time 
B)  the pessimistic time 
C)  the activity variance 
D)  the minimum time 
E)  exactly twice as long as the expected time 
A)  the optimistic time 
B)  the pessimistic time 
C)  the activity variance 
D)  the minimum time 
E)  exactly twice as long as the expected time

Question 5

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=4, E=3, F=8.

Accepted Answer

A)  The critical path is D-E-F, duration 15. 
B)  The critical path is D-F, duration 12. 
C)  Slack at D is 3 units. 
D)  Slack at E is 3 units. 
E)  Both A and C are true. 
A)  The critical path is D-E-F, duration 15. 
B)  The critical path is D-F, duration 12. 
C)  Slack at D is 3 units. 
D)  Slack at E is 3 units. 
E)  Both A and C are true.

Question 6

Describe some of the challenges faced in the construction of the new 11-story building at Arnold Palmer Hospital in Orlando, Florida.

Accepted Answer

Prior to beginning actual construction,

Question 7

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 8

A local project being analyzed by PERT has 42 activities, 13 of which are on the critical path. If the estimated time along the critical path is 105 days with a project variance of 25, the probability that the project will be completed in 95 days or less is

Accepted Answer

A)  -0.4 
B)  0.0228 
C)  0.3444 
D)  0.9772 
E)  4.2 
A)  -0.4 
B)  0.0228 
C)  0.3444 
D)  0.9772 
E)  4.2

Question 9

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. $$\begin{array} { | c | c | c | c | c | } 
\hline \text { Activity } & \text { Normal Time } & \text { Normal Cost } & \text { Crash Time } & \text { Crash Cost } \
\hline \text { One } & 8 \text { days } & \$ 6,000 & 6 \text { days } & \$ 6,800 \
\hline \text { Two } & 10 \text { days } & \$ 4,000 & 9 \text { days } & \$ 5,000 \
\hline
\end{array}$$

Accepted Answer

A)  One; $400 
B)  One; $6,800 
C)  Two; $1,000 
D)  Two; $5,000 
E)  One or two should be crashed; $1,400 
A)  One; $400 
B)  One; $6,800 
C)  Two; $1,000 
D)  Two; $5,000 
E)  One or two should be crashed; $1,400

Question 10

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 11

A combination of effective Gantt chart use and other tactics allowed Delta to cut the average time for a plane layover by what % of the original 60 minute duration?

Accepted Answer

A)  33%, to 40 minutes 
B)  50%, to 30 minutes 
C)  20%, to 48 minutes 
D)  25%, to 45 minutes 
E)  40%, to 36 minutes 
A)  33%, to 40 minutes 
B)  50%, to 30 minutes 
C)  20%, to 48 minutes 
D)  25%, to 45 minutes 
E)  40%, to 36 minutes

Question 12

Three critical path activities are candidates for crashing on a CPM network. Activity details are in the table below.
 $$\begin{array} { | c | c | c | c | c | } 
\hline \text { Activity } & \text { Normal Time } & \text { Normal Cost } & \begin{array} { c } 
\text { Crash } \
\text { Duration }
\end{array} & \text { Crash Cost } \
\hline \text { A } & 9 \text { days } & \$ 8,000 & 7 \text { days } & \$ 12,000 \
\hline \text { B } & 5 \text { days } & \$ 2,000 & 3 \text { days } & \$ 10,000 \
\hline \text { C } & 12 \text { days } & \$ 9,000 & 11 \text { days } & \$ 12,000 \
\hline
\end{array}$$ 
a. What is the crash cost per unit time for activity A?
b. What is the crash cost per unit time for activity B?
c. Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost?
d. Which activity should be the next activity crashed to cut a second day from the project's duration; how much is added to project cost?
e. Assuming no other paths become critical, how much can this project be shortened at what total added cost?

Accepted Answer

(a) $2,000; (b) $4,0

Question 13

Ethical issues which can arise in projects include gifts from contractors, pressure to mask delays with False status reports, and pressure to compromise project quality for cost or time savings.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following statements regarding critical paths is true?

Accepted Answer

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 only 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. 
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 only 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.

Question 15

Briefly describe the concept of cost/time trade-off and how it is used.

Accepted Answer

Cost/time trade-off is fundamentally PER

Question 16

Explain why the critical path is the longest, not the shortest, path through a network.

Accepted Answer

Critical path is that set of activities

Question 17

The project organization works best when which of the following conditions are satisfied?
I. Work can be defined with a specific goal and deadline.
II. The job is typical and familiar to the existing organization.
III. The work contains interrelated tasks requiring specialized skills
IV. The project is temporary but unimportant to long-term organizational success
V. The project cuts across organizational lines.

Accepted Answer

A)  I,II,III,IV,V 
B)  None of the above conditions need to be satisfied 
C)  I,III,V 
D)  I,II,III,V 
E)  I,III,IV,V 
A)  I,II,III,IV,V 
B)  None of the above conditions need to be satisfied 
C)  I,III,V 
D)  I,II,III,V 
E)  I,III,IV,V

Question 18

__________ divides a project into more and more detailed components.

Accepted Answer

Work break

Question 19

The difference between AON and AOA networks is that

Accepted Answer

A)  AOA networks sometimes require dummy activities 
B)  nodes consume no resources or time in AOA networks 
C)  both are acceptable in practice, however Microsoft Project uses AON 
D)  in AON nodes designate activities, in AOA arrows designate activities 
E)  All of the above are true. 
A)  AOA networks sometimes require dummy activities 
B)  nodes consume no resources or time in AOA networks 
C)  both are acceptable in practice, however Microsoft Project uses AON 
D)  in AON nodes designate activities, in AOA arrows designate activities 
E)  All of the above are true.

Question 20

What are the advantages of using PERT and CPM?

Accepted Answer

The advantages include its usefulness fo

Exam 3: Project Management

The __________ distribution is used by PERT analysis to calculate expected activity times and variances.

The ES of an activity that has only one predecessor is simply the EF of that predecessor.

A network consists of the activities in the following list. Times are given in weeks. Activity Preceding Time A -- 8 B -- 3 C A 7 D A, B 3 E C 4 a. Draw the network diagram. b. Calculate the ES, EF, LS, LF, and Slack for each activity. c. What is project completion time?

The time an activity will take assuming very unfavorable conditions 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=4, E=3, F=8.

Describe some of the challenges faced in the construction of the new 11-story building at Arnold Palmer Hospital in Orlando, Florida.

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

A local project being analyzed by PERT has 42 activities, 13 of which are on the critical path. If the estimated time along the critical path is 105 days with a project variance of 25, the probability that the project will be completed in 95 days or less is

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

A combination of effective Gantt chart use and other tactics allowed Delta to cut the average time for a plane layover by what % of the original 60 minute duration?

Ethical issues which can arise in projects include gifts from contractors, pressure to mask delays with False status reports, and pressure to compromise project quality for cost or time savings.

Which of the following statements regarding critical paths is true?

Briefly describe the concept of cost/time trade-off and how it is used.

Explain why the critical path is the longest, not the shortest, path through a network.

__________ divides a project into more and more detailed components.

The difference between AON and AOA networks is that

What are the advantages of using PERT and CPM?

Operations and Productivity

Operations Strategy in a Global Environment

Forecasting

Design of Goods and Services

Managing Quality

Statistical Process Control

Process Strategy

Capacity and Constraint Management

Location Strategies

Layout Strategies

Human Resources, Job Design, and Work Measurement

Supply-Chain Management

Outsourcing as a Supply-Chain Strategy

Inventory Management

Aggregate Planning

Material Requirements Planning MRP and ERP

Short-Term Scheduling

Just-In-Time and Lean Options

Maintenance and Reliability

Decision-Making Tools

Linear Programming

Transportation Models

Waiting-Line Models

Learning Curves

Simulation

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