ACtE08 · Chapter 8Mock Test 03🏛️ Past Licensure QuestionID: 0a77a9e0
Free float for any activity in CPM network analysis is defined as the difference between:
Free float for any activity in CPM network analysis is defined as the difference between:
Multiple Choice Options
- A
Its latest start time and earliest start time
- B✓ Correct Option
Its earliest finish time and earliest start time for its successor activity
- C
Its latest finish time and earliest start time for its successor activity
- D
Its earliest finish time and latest start time for its successor activity
Detailed Technical Solution & Explanation
In the Critical Path Method (CPM):
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Total Float ($TF$): Maximum delay possible without delaying the project completion time ( or ).
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Free Float ($FF$): The amount of time an activity can be delayed without delaying the earliest start time of any immediate successor activity:
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Independent Float ($IF$): Excess time available when the preceding event occurs at its latest time and the succeeding event occurs at its earliest time.
Option Analysis:
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Option A (Its latest start time and earliest start time): Incorrect; this defines Total Float ().
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Option B (Its earliest finish time and earliest start time for its successor activity): Correct; Free Float is the margin between the earliest start time of the successor activity and the earliest finish time of the current activity.
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Option C (Its latest finish time and earliest start time for its successor activity): Incorrect; invalid float formulation.
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Option D (Its earliest finish time and latest start time for its successor activity): Incorrect; references latest start time of successor.
Reference: Mock Test 03NEC Licensure Syllabus