Exam 8: Project Management

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Consider the following network. Consider the following network.    -Assume that the variance for each activity in the network is equal to 1. Compute the probability that path A-B-E-F will be completed in 15 days. -Assume that the variance for each activity in the network is equal to 1. Compute the probability that path A-B-E-F will be completed in 15 days.

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In PERT, the actual project completion time will never exceed the expected duration of the critical path.

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The diagram below shows the activities on the nodes, and the table shows the normal time and crash time (in days) and cost for each activity.  The diagram below shows the activities on the nodes, and the table shows the normal time and crash time (in days) and cost for each activity.         \begin{array} { | c | c | c | c | }  \hline \text { Activity } & \text { Normal Time } & \text { Crash Time } & \begin{array} { c }  \text { Cost per day } \\ \text { to crash } \end{array} \\ \hline \text { A } & 6 & 6 & - - - \\ \hline \text { B } & 10 & 8 & \$ 100 \\ \hline \text { C } & 5 & 4 & \$ 300 \\ \hline \text { D } & 4 & 1 & \$ 700 \\ \hline \text { E } & 9 & 7 & \$ 500 \\ \hline \text { F } & 2 & 1 & \$ 650 \\ \hline \end{array}  -Determine which activities should be crashed to shorten the project by 3 days. What is the cost? Activity Normal Time Crash Time Cost per day to crash A 6 6 --- B 10 8 \ 100 C 5 4 \ 300 D 4 1 \ 700 E 9 7 \ 500 F 2 1 \ 650 -Determine which activities should be crashed to shorten the project by 3 days. What is the cost?

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A(n) ________ chart is a graph or a bar chart for each activity that shows the project schedule and the passage of time.

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When applying linear programming models to project crashing, the objective is to minimize ________.

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In a CPM/PERT network the critical path is the

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Refer to the table below to answer the question(s) that follow: ~~~~~~~~~~~~~~~~~~~~~~~~~Activity~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Times~ (weeks)\\ \begin{array}{c} \text { Activity } & \text { Predecessor } & \text { Optimistic } & \text { Most Likely } & \text { Pessimi } \\ \hline \text { A } & --- & 9 & 15 & 21 \\ \text { B } & --- & 13 & 21 & 23 \\ \text { C } & \text { A } & 6 & 9 & 18 \\ \text { D } & \text { A } & 23 & 35 & 47 \\ \text { E } & \text { B } & 19 & 26 & 27 \\ \text { F } & \text { C } & 23 & 29 & 41 \\ \text { G } & \text { D,E } & 14 & 20 & 26 \\ \text { H } & \text { F,G } & 2 & 5 & 8 \end{array} -What are the estimated expected completion (mean) times (in weeks) for activities A-H?

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Consider the following project. Activity Imunediate Predecessor Activity Time (drys) A -- 3 -- 4 4 6 5 , 4 7 -What is the latest possible time that Activity E can be started without delaying the completion of the project?

(Multiple Choice)
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Elements of project planning include

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Refer to the table below to answer the question(s) that follow: ~~~~~~~~~~~~~~~~~~~~~~~~~Activity~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Times~ (weeks)\\ \begin{array}{c} \text { Activity } & \text { Predecessor } & \text { Optimistic } & \text { Most Likely } & \text { Pessimi } \\ \hline \text { A } & --- & 9 & 15 & 21 \\ \text { B } & --- & 13 & 21 & 23 \\ \text { C } & \text { A } & 6 & 9 & 18 \\ \text { D } & \text { A } & 23 & 35 & 47 \\ \text { E } & \text { B } & 19 & 26 & 27 \\ \text { F } & \text { C } & 23 & 29 & 41 \\ \text { G } & \text { D,E } & 14 & 20 & 26 \\ \text { H } & \text { F,G } & 2 & 5 & 8 \end{array} -What are the estimated slack times (in weeks) for activities A-H?

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In an AOA network, a ________ activity is used to show a precedence relationship, but it does not represent passage of time.

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An AOA network will never require dummy activities.

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

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Consider the following network. Consider the following network.    -The early start for activity 2 is ________. -The early start for activity 2 is ________.

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The early start of an activity that has more than one predecessor is the minimum of the earliest finishes of all predecessors.

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Setting deadlines is an element of project planning.

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The critical path is the shortest path through the project network.

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Which of these statements regarding project crashing is true?

(Multiple Choice)
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Given the following information for a project, draw the AOA (Activity-On-Arrow) project network. Activity Immediate Processor Activity Time (days) A - 6 B - 8 C A, B 5 D B 4 E C 7 F C, D 3 G D 6 H E, F, G 5

(Essay)
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Consider the following project. Activity Imunediate Predecessor Activity Time (drys) A -- 3 -- 4 4 6 5 , 4 7 -What is the latest finish time for activity F?

(Multiple Choice)
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