AACE International Updated PSP Exam Questions and Answers by avery

 To eliminate Activity B from the critical path, its dependencies must change so that its delay no longer impacts the path's completion time.

 Replacing the A → B relationship with a Finish-to-Finish with Offset (FFO) and adding an FSO (Finish-to-Start with Offset) relationship from A → C allows Activity C to proceed independently of Activity B.

 References: PSP Study Guide, Section 2.2.4 – Relationships and Calculations, explains how relationship types can influence critical path determination.

 Activity Details (2001 - "River Diversion Stage 1"):

Successor: 2002 ("River Diversion Stage 2").

Relationship: Finish-to-Start (FS) with no lag.

Normal schedule duration for Activity 2001 = 92 days.

 Backward Pass Calculation for Late Finish (LF):

The Late Finish (LF) of Activity 2001 is derived from the Late Start (LS) of its successor, Activity 2002.

Formula: LF.2001 = LS.2002 - 1 day.

 Date Calculation:

Given: LS.2002 = 08-30-01 (as per data in the schedule).

LF.2001 = LS.2002 - 1 day = 08-30-01 - 1 day = 08-29-01.

 Cross-Verification with Answer Options:

Option A: Incorrect. Misrepresents the Late Finish formula.

Option C: Incorrect. Adds 1 day instead of subtracting.

Option D: Incorrect. Incorrect date application.

Option B: Correct. Matches both formula and calculation.

To reconstruct a CPM schedule electronically and determine the critical path, the following are essential:

Detailed listing of working days for each calendar (Option A): Ensures accurate scheduling across varying work periods.

Predecessor and successor relationships (Option B): Establishes logic and dependencies.

Tabular data including early/late dates (Option D): Necessary for computing float and identifying the critical path.

Assigned party responsibility (Option C) is important for resource management but not required to calculate the critical path​​.