CST Critical Path & Float Analysis 3

Question 1

During a forward pass calculation, what values are determined for each activity?

Accepted Answer

Early Start and Early Finish

Answer

The forward pass calculates Early Start and Early Finish dates by moving from the project start toward the end.

Question 2

When performing a backward pass in CPM, which date is used as the starting point?

Accepted Answer

The project end date (or Late Finish of the last activity)

Answer

The backward pass begins at the project end date (Late Finish of the terminal activity) and works backward to determine Late Finish and Late Start for all activities.

Question 3

If Activity P has an Early Finish of day 20 and its only successor Activity Q has an Early Start of day 25, what is Activity P's Free Float?

Accepted Answer

5 days

Answer

Free Float = Early Start of successor − Early Finish of the activity = 25 − 20 = 5 days.

Question 4

A project has multiple end activities (A, B, C) with Early Finish dates of 30, 35, and 28 days respectively. What is the project duration?

Accepted Answer

35 days

Answer

The project duration is the longest Early Finish among all terminal activities, which is 35 days.

Question 5

Which statement correctly describes the relationship between Total Float and Free Float?

Accepted Answer

Total Float is always greater than or equal to Free Float

Answer

Total Float is always greater than or equal to Free Float because Free Float is a subset of the available Total Float.

(CST) Certified Scheduling Technician Practice Test

(CST) Certified Scheduling Technician Practice Test

CST Critical Path & Float Analysis 3