CPE Project Planning & Scheduling Techniques 2

Question 1

In a Precedence Diagramming Method (PDM) network, which relationship type allows a successor activity to start before its predecessor finishes?

Accepted Answer

Start-to-Start (SS)

Answer

A Start-to-Start (SS) relationship allows the successor to begin before or as soon as the predecessor starts, enabling overlapping work.

Question 2

Which scheduling technique uses three time estimates (optimistic, pessimistic, most likely) to calculate expected activity durations?

Accepted Answer

Program Evaluation and Review Technique (PERT)

Answer

PERT uses a weighted average of three time estimates (O + 4M + P) / 6 to account for uncertainty in activity durations.

Question 3

What is the purpose of a Hammock activity in project scheduling?

Accepted Answer

To summarize a group of activities spanning between two points

Answer

A Hammock activity is a summary activity whose duration is determined by the start of one activity and the finish of another, spanning multiple sub-activities.

Question 4

When applying fast-tracking to a project schedule, what is the primary risk introduced?

Accepted Answer

Rework resulting from performing activities in parallel that were planned sequentially

Answer

Fast-tracking overlaps activities that were originally planned in sequence, increasing the risk of rework if the predecessor's output changes.

Question 5

A project has a Total Float of 0 days on several activities. What does this indicate?

Accepted Answer

Those activities lie on the critical path

Answer

Activities with zero Total Float are on the critical path; any delay in them will directly delay the project finish date.

(CPE) Certified Planning Engineer Practice Test

(CPE) Certified Planning Engineer Practice Test

CPE Project Planning & Scheduling Techniques 2