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

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Question 51

Multiple Choice

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

A) Optimistic duration.
B) Pessimistic duration.
C) Most likely duration.
D) Normal duration.

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Question 52

Multiple Choice

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-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?

A) 6, 20
B) 6, 26
C) 9, 20
D) 9, 26

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Question 53

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

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.

Hammock activities allow:

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

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?

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

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?

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

-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.

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?

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

What is the early start time for Activity D 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:

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?

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) :

-Network logic suggests that:

Prior to creating a network, it is important to: