PSP Exam Dumps - Planning & Scheduling Professional (PSP) Exam

Total float measures the flexibility in an activity’s timing within a schedule. It is defined as the amount of time an activity can be delayed without affecting the project’s overall completion date or the completion date of any of its successors.

Option A, B, and D accurately describe total float: it is calculated as the difference between early and late start/finish dates, can be positive or negative, and is associated with project completion​.

Option C describes free float, not total float, and thus is incorrect.

ï‚· Construction Life Cycle Phases:

Common phases: planning and design, installation (execution), and turnover/start-up.

Claims and disputes may arise during the project but are not a defined phase of the construction life cycle.

ï‚· PSP Study Guide References:

The study guide outlines standard phases without including claims and disputes as a formal phase​.

ï‚· Conclusion: The correct answer is A, as claims and disputes are not an inherent phase of the construction life cycle.

The linear scheduling velocity diagram uses time on one axis and location on the other. This graphically represents the progression of work at various locations over time.

Option C (time and rate of progress) and Option D (time and crew size) refer to related concepts but do not accurately describe the axes.

Option A (location and crew size) is unrelated.

This aligns with graphical techniques discussed for construction scheduling​.

Scheduling Professional Study Guide and Documents References

Forward Pass Calculation:

A forward pass determines the earliest start (ES) and earliest finish (EF) dates for all activities, progressing from project start to finish.

Total float is calculated later by comparing early and late dates.

PSP Study Guide References:

Forward and backward pass calculations are core elements of CPM scheduling methodology​.

Conclusion: The correct answer is B, as forward pass provides ES and EF for activities.

ï‚· Delay Analysis:

Analyzing delays contemporaneously ensures accurate understanding of their causes and effects, helping stakeholders mitigate impacts in real time.

Waiting until after the project introduces risks of incomplete or inaccurate records.

ï‚· PSP Study Guide References:

Contemporary delay analysis is highlighted as a best practice for effective delay resolution and management​.

ï‚· Conclusion: The correct answer is B, as contemporaneous analysis is the most effective way to address project delays.

ï‚· Logic Organization Requirement:

Activity 6002 is required to begin 10 days after the start of Activity 6001.

A start-to-start (SS) relationship with a 10-day lag effectively captures this requirement.

ï‚· Exclusion of Other Options:

Option B: Placing the lag on Activity 6002 introduces unnecessary complexity.

Option C: Start-to-finish relationships are not appropriate for this situation.

Option D: A finish-to-start relationship does not meet the requirement of aligning start times.

ï‚· Verification with PSP Guidelines:

The PSP Study Guide emphasizes using SS relationships with lags for activities that need staggered starts (Ref: PSP Study Guide, Chapter 2A: Relationships and Lags).

ï‚· Position Analysis:

Activity C (Develop Draft Plans and Specifications) has a duration of 5 months and is preceded by Activity A.

The diagram positions Activity C incorrectly since it starts simultaneously with Activity B, but Activity C should start after the completion of Activity A.

ï‚· Cross-Verification:

Based on the dependencies, Activity C’s incorrect positioning violates the logical sequencing rule.

ï‚· Verification with PSP Guidelines:

Correct logic representation is critical for network diagrams (Ref: PSP Study Guide, Chapter 2A: Logical Sequencing).

ï‚· Definition of a Critical Path Method (CPM) Schedule:

CPM schedules are based on network diagrams that logically link activities, showing the sequence and dependencies between them.

These schedules identify the critical path, which is the longest path through the network, determining the project's shortest possible duration.

ï‚· Evaluation of Options:

Option A: Incorrect. While CPM schedules do include tasks and timelines, the defining feature is the logical interconnection of activities.

Option B: Incorrect. CPM schedules are not limited to "risky" work; they show all activities.

Option C: Incorrect. CPM schedules use network diagrams, not just graphical representations.

Option D: Correct. The network diagram is the key characteristic of CPM schedules.