Independent float of an activity is the maximum delay that can be used without affecting:
Choose the correct answer
Only the early start of successor activities
Either the late finish of predecessor or early start of successor activities
Only the total float of preceding activities
The critical path length of the project
Correct Answer
B. Either the late finish of predecessor or early start of successor activities
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Independent float = max(0, ES_successor − LF_predecessor − Duration). It can be consumed without affecting either predecessors or successors. IF ≤ Free Float ≤ Total Float. IF is always ≥ 0 and often = 0. It represents truly 'safe' delay time for an activity.
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