Physical Security Professional PSP Book

 Relationship Analysis:

Activity 4001 starts 15 days after Activity 3001 begins, based on their logical dependency (SS +15).

This indicates partial concurrency, as both activities overlap in execution.

 Evaluation of Other Options:

A: Incorrect, as the statement refers to Activity 5001, not 3001.

C: Incorrect, as Activity 4001 does not start before Activity 3001.

 Verification with PSP Guidelines:

PSP guidelines stress precise interpretation of activity relationships (Ref: PSP Study Guide, Chapter 2A: Logical Relationships and Lags).

 Impact of Overrun:

Drafting (Activity C) and manufacturing (Activity D) are critical path activities.

A 5-day overrun in drafting consumes all available time for manufacturing.

Therefore, manufacturing cannot be delayed without affecting the release of the product.

 Verification with PSP Guidelines:

The PSP Study Guide specifies that critical path activities have zero float, so delays propagate directly to the project finish (Ref: PSP Study Guide, Chapter 2A: Critical Path and Float).

 Shape of Cumulative BCWS:

The Budgeted Cost of Work Scheduled (BCWS) reflects a cumulative expenditure curve over time, typically shaped like an "S".

 Explanation of the S-Curve:

Initially slow expenditure, acceleration during peak work, and tapering off near completion.

 Verification with PSP Guidelines:

The PSP Study Guide discusses BCWS as part of earned value management (Ref: PSP Study Guide, Chapter 1D: Earned Value Analysis).

 Role of Soils Engineer:

Soils engineers address subsurface conditions, such as soil stability, unexpected geology, and underground obstacles.

 Evaluation of Other Options:

A: Survey errors are typically addressed by surveyors.

C: Archeological findings involve specialists in historical preservation.

D: Toxic soils are typically handled by environmental engineers.

 Verification with PSP Guidelines:

The PSP Study Guide includes subsurface investigations as a key responsibility for geotechnical professionals (Ref: PSP Study Guide, Chapter 1A: Site Conditions).