critical path practice question

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gracezu

February 02, 2021 23:30

What is NOT true of the Critical Path on a construction schedule?

A. It is the path to completion on which there is no “Float”.

B. A longer duration of a task on the Critical Path pushes out the completion date.

C. A Critical Path with no “Float” is the shortest duration required to complete the work.

D. Which tasks are on the critical path can change over the duration of a project.

The answer to this question is “A”. –All project schedules have a critical path, the shortest sequence of tasks and should have Float as a contingency.

Does this mean all critical path has a “built-in” time contingency? Anyone has any insight?

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  Lizann February 04, 2021 17:17

  I interpret the explanation to mean that the line representing critical path is best case scenario completion and there is an additional "float" to accommodate events causing delay. In other words, yes, the chart factors or builds time in, but it is important to note the Critical Path element/bar should represent the shortest sequence. The emphasis of this method of scheduling is to highlight CRITICAL deadlines which must be met in order to keep the project schedule on track. I recommend searching examples of CPM schedules and looking at the legend.

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  Aleksandar Stojkovic February 15, 2021 21:47

  I think that usually the path with the longest time is the "critical path." (this can be seen as the shortest possible time required to complete the project, because all activities need to be completed).

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  Bryan Moore March 22, 2021 19:27

  From my study materials I gather that "Float" activities can start and stop without affecting the overall schedule. Meaning they are not "buffers" between critical path activities, but that they are activities that float within the timeframe of the construction start date and final completion.

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