Civil Engineering MCQAE Level Civil Engineering
For an activity with ES=6, EF=14, LS=9, LF=17, early start of its sole successor=14, late finish of its sole predecessor=10, the independent float is:
Construction ManagementFloat TypesMEDIUM
Choose the correct answer
A
3 days
B
0 days
C
1 day
D
4 days
Correct Answer
B. 0 days
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IF = max(0, ES_successor − LF_predecessor − Duration) = max(0, 14 − 10 − 8) = max(0, −4) = 0 days. Duration = EF − ES = 14 − 6 = 8 days. Independent float is often zero, meaning using total or free float does affect other activities. TF = LS − ES = 9 − 6 = 3 days.
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