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Exam 9: Project Scheduling: Networks, Duration Estimation, and Critical Path

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Question 51

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These can be located by doing a backward pass through a network.

A) Critical paths
B) Merge activities
C) Successors
D) Burst activities

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Question 52

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Use the values in the table to calculate activity durations and variances for the project. What is the likelihood of finishing this project within 47 days?

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The estimated activity lengths and varia...

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Question 53

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Laddering is a technique that allows the project manager to redraw the network to more closely sequence project subtasks to make the overall network sequence more efficient.

-What is the earliest that Activity D can begin if Activity A takes 3 days, Activity B takes 5 days, and Activity C takes 7 days?

Phoebe B. Beebee is constructing a canal for the annual canoe races and has identified eleven activities that are required to complete this important project. She calculated early and late start times and early and late finish times but spilled coffee all over her printout. Use the remaining information to reconstruct the table for Phoebe B. Beebee and her new canoe canal.

-Network logic suggests that:

Hammock activities allow:

Prior to creating a network, it is important to:

What is the early start time for Activity G given the activity times and precedence requirements shown in the table?

Summaries for some subsets of the activities identified in the overall project network are called:

Negative float exists when a project's critical path has been completed more quickly than anticipated.

An activity has an optimistic time estimate of 17 days, a most likely estimate of 23 days, and a pessimistic estimate of 37 days. What is the variance of the activity?

You must know the mean of an activity in order to determine its standard deviation.

The length of time expected to complete an activity assuming that its development proceeds normally is called the:

Use the values in the table to calculate activity durations and variances for the project. Which path is critical? How closely should the other path be watched and why?

Discuss any five approaches to reducing the critical path. Which is the most effective and which is the most difficult to achieve? Why?

One of the defining points of a network, a junction point joined to some or all of the others by dependency lines, is called a(n) :

What is the early start time for Activity D given the activity times and precedence requirements shown in the table?

A project has the precedence requirements and activity durations shown in the table. After he draws the network, the project manager decides that activities H and I can be represented by a hammock activity. What are the early start and late finish times associated with this hammock activity?

-Activities C, D, and E in the project represented by the network are to be hammocked. What are the early start and late finish times of the hammock activity?