WBS Academy

Courses / Scheduling Fundamentals / Lesson 5.2

Knowledge check

15 min Quiz

In this lesson

  • Check your understanding of dependencies, CPM and float
  • Find any lessons worth a second look

Ten questions covering the whole course. You need 80% to pass, and you can take it as often as you like; your best score is saved in this browser.

Some questions need a quick calculation, so keep a scrap of paper handy. After you check your answers, each question explains the right one, with a pointer back to the idea behind it.

1. B has an FS relationship with a 2-day lag from A. A finishes at the end of Day 10. When can B start at the earliest?
2. G has two FS predecessors without lag: D with EF 12 and E with EF 11. What is G’s early start?
3. C has two FS successors without lag: E with LS 6 and F with LS 13. What is C’s late finish?
4. An activity has ES 4, EF 9, LS 6 and LF 11. What is its total float?
5. An activity has total float 5 and free float 0. It slips by 2 days. What happens?
6. Which statement about the critical path is true?
7. An activity has no successor and shows 40 days of total float. What is the most likely explanation?
8. A path shows −3 days of total float. What does that mean?
9. Lay pipe has SS+2 and FF+1 from Excavate trench. Why add the FF?
10. You need to finish two days earlier. Which change can shorten the project?