Network Diagram Development Problem

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Questions and Answers

What is the immediate predecessor activity for activity E?

  • Activity B
  • Activity C
  • Activity F
  • Activity D (correct)

What is the predecessor activity for activity C?

  • Activity F
  • Activity A
  • Activity D
  • Activity B (correct)

Which activity has no predecessor and is the first activity in the project network?

  • Activity B
  • Activity C
  • Activity D
  • Activity A (correct)

What is the predecessor activity for activity G?

<p>Activity F (B)</p>
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Which activities are joined by node 6 in the project network diagram?

<p>Activity D and Activity F (C)</p>
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Which activity is the last activity in the project network?

<p>Activity G (C)</p>
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What is the purpose of the critical path method (CPM)?

<p>To determine the time to complete a project and identify important activities (C)</p>
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What is the definition of the critical path in a project network?

<p>The path with the largest time of execution (A)</p>
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What is the significance of critical activities in a project?

<p>They are activities that cannot be delayed without delaying the whole project (D)</p>
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What does the completion time of a project include?

<p>The time required to complete all activities of the project in the specified sequence (D)</p>
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What is a continuous sequence consisting of nodes and activities in a project network called?

<p>A path in the network (A)</p>
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Why is it important for a project manager to pay special attention to critical activities?

<p>Because any delay in them will delay the completion of the whole project (C)</p>
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What does CPM assume about the time estimates for each activity?

<p>Precise time estimate is available for each activity (A)</p>
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When may a non-critical activity be delayed without delaying the whole project?

<p>When its delay does not exceed a certain limit (A)</p>
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What is a dummy activity used for in project networks?

<p>To connect two nodes without any actual work being done (B)</p>
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What is meant by 'path' in a network diagram for a project?

<p>A continuous sequence, consisting of nodes and activities alternatively, beginning with the start event and stopping at the end event of a network (B)</p>
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Study Notes

Activity Predecessors

  • The immediate predecessor activity for activity E is not specified.
  • The predecessor activity for activity C is not specified.

Project Network

  • The activity with no predecessor and the first activity in the project network is not specified.

Activity Relationships

  • The predecessor activity for activity G is not specified.
  • Activities joined by node 6 in the project network diagram are not specified.

Critical Path Method (CPM)

  • The purpose of CPM is not specified.
  • The critical path in a project network is defined as the sequence of activities that determines the minimum duration required to complete the project.
  • Critical activities in a project are significant because they determine the minimum project duration.

Project Completion

  • The completion time of a project includes the duration of the critical path.

Project Network Components

  • A continuous sequence consisting of nodes and activities in a project network is called a path.

Critical Activities

  • It is important for a project manager to pay special attention to critical activities because they determine the minimum project duration.

Time Estimates

  • CPM assumes that the time estimates for each activity are fixed and known.

Non-Critical Activities

  • A non-critical activity may be delayed without delaying the whole project if its delay does not affect the critical path.

Dummy Activities

  • A dummy activity is used to maintain the logical relationships between activities in project networks.

Network Diagram

  • In a network diagram for a project, a path refers to a sequence of nodes and activities.

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