ITPEC FE Morning April 2021 Question 52
ITPEC FE Morning April 2021 — Question 52 of 80
Slack Time (Total Float) — time a non-critical activity can be delayed without delaying the project.
Slack = LS - ES = LF - EF
- •Activities on the critical path always have slack = 0
- •Only non-critical path activities have positive slack
Why not others:
- (a) — describes duration of an activity (EF - ES or LF - LS), not slack
- (c) — describes free float (delay without affecting the next activity's earliest start)
- (d) — delaying past latest times means the schedule is already violated; no such concept
Key distinction:
- Total float (slack) — delay without affecting project end date
- Free float — delay without affecting next activity's early start
AI-generated — may contain errors
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