Question 1

Identify each of the purposes of project scheduling.

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Question 2

Identify the responsibilities of project managers.

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Question 3

The fundamental difference between PERT and CPM is that PERT uses the beta distribution for crashing projects while CPM uses cost estimates.

Accepted Answer

The statement is incorrect. PERT and CPM both use cost estimates for crashing projects. The main difference between them lies in how they handle uncertainties and risks. PERT uses the probabilistic technique of three-point estimation and Monte Carlo simulation to calculate the expected duration and variance of a project, while CPM uses deterministic methods to calculate the critical path and float of a project.

Question 4

The main difference between PERT and CPM is that:
A)PERT is more accurate than CPM.
B)PERT assumes that activity durations are known.
C)PERT ignores activity costs.
D)CPM assumes activity durations can vary.
E)PERT employs three time estimates for each activity.

Accepted Answer

PERT (Program Evaluation and Review Technique) employs three time estimates for each activity (optimistic, most likely, and pessimistic) to account for uncertainty in activity durations, unlike CPM (Critical Path Method), which typically uses a single, deterministic time estimate for each activity.

Question 5

A simple CPM network has five activities,A,B,C,D,and E.A is an immediate predecessor of C and of D.B is also an immediate predecessor of C and of D.C and D are both immediate predecessors of E.Which of the following statements is true?
A)There are two paths in this network.
B)There are four paths in this network.
C)There are five paths in this network.
D)There are 25 paths in this network.
E)There are six paths in this network.

Accepted Answer

There are only two starting points in this network, A and B. From A, we can reach C and D, and from B, we can also reach C and D. From C and D, we can both reach E. Therefore, there are four paths in this network:
1. A-C-E
2. A-D-E
3. B-C-E
4. B-D-E

Question 6

A(n)________ divides a project into more and more detailed components.

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Question 7

Describe the differences between a Gantt chart and a PERT/CPM network.

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Question 8

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

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Question 9

PERT,but not CPM,has the ability to consider the precedence relationships in a project.

Accepted Answer

Both PERT (Program Evaluation and Review Technique) and CPM (Critical Path Method) consider the precedence relationships between tasks in a project to determine the project schedule.

Question 10

The difference between AON and AOA networks is that:
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)nodes designate activities in AON,while arrows designate activities in AOA.
E)All of the above are true.

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Question 11

Which of the following statements regarding Gantt charts is true?
A)Gantt charts give a timeline and precedence relationships for each activity of a project.
B)Gantt charts use the four standard spines of Methods,Materials,Manpower,and Machinery.
C)Gantt charts are visual devices that show the duration of activities in a project.
D)Gantt charts are expensive.
E)All of the above are true.

Accepted Answer

Gantt charts are visual devices that show the duration of activities in a project. While A is partially true, as Gantt charts do give a timeline for each activity, it is not completely accurate as they do not always show precedence relationships. B is not true as Gantt charts do not necessarily use the four standard spines mentioned. D is not true as Gantt charts can be created using free software or even manually.

Question 12

The control of projects involves close monitoring of which of the following?
A)resources
B)costs
C)quality
D)budgets
E)all of the above

Accepted Answer

The control of projects involves close monitoring of resources, costs, quality, and budgets. Therefore, all of the above choices are the best choice(s).

Question 13

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?
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

Accepted Answer

Delta cut the average time for a plane layover by 33%, reducing the original 60-minute duration to 40 minutes.

Question 14

What are some of the ethical issues faced by project managers?

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Question 15

What is a project organization?

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Question 16

The shortest of all paths through the network is the critical path.

Accepted Answer

The critical path is the longest sequence of activities in a project plan which must be completed on time for the project to complete on due date. It is not the shortest path but the longest one because it determines the project duration.

Question 17

Gantt charts give a timeline for each of a project's activities,but they do not adequately illustrate the interrelationships between the activities and the resources.

Accepted Answer

While Gantt charts do provide a visual timeline for each activity, they do not show the dependencies between activities or the allocation of resources, which can affect the overall project schedule. Additional tools like network diagrams or resource histograms may be necessary to fully understand the project's interrelationships and resource constraints.

Question 18

The ________ is the computed longest time path(s)through a network.

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Question 19

The ________ is a project management technique using only one time factor per activity that enables managers to schedule,monitor,and control large and complex projects.

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Question 20

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

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Quiz 3: Project Management