Float time is calculated during scheduling. Which of the following statements about float time are correct? Note: There are 3 correct answers to this question

Question

Options

• AFloat time can be negative
• BActivities with the time constraint "Must start on" always have a negative float time
• CThe float time of WBS elements is calculated by extrapolation
• DBy default, critical activities have a float time, which is less than or equal to zero
• EThe maximum size of a free float is as large as the total float of an activity

• A
  77% (20)
• B
  8% (2)
• D
  15% (4)

Explanation

Float time is the amount of time that an activity or a WBS element can be delayed without affecting the end date of the project. Float time can be negative if an activity or a WBS element is already behind schedule. The float time of WBS elements is calculated by extrapolating the float times of their subordinate activities. The free float is the amount of time that an activity can be delayed without affecting the start date of its successor activities. The total float is the amount of time that an activity can be delayed without affecting the end date of the project. Therefore, the maximum size of a free float is as large as the total float of an activity,

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