Question 1

The critical path may not contain a dummy activity.

Accepted Answer

False

Question 2

An activity of duration zero whose sole purpose is to maintain network logic is a(n) __________.

Accepted Answer

dummy activity

Question 3

The horizontal axis for a Gantt chart is __________.

Accepted Answer

time

Question 4

The logical relationship between the start and finish of one activity and the start and finish of another activity is the __________.

Accepted Answer

The answer of The logical relationship between the start and...

Question 5

Most project management software employs AOA diagramming

Accepted Answer

Most project management software employs AON (activity-on-node) diagramming instead of AOA (activity-on-arrow) diagramming. In AON diagramming, the nodes represent the activities and the arrows represent the dependencies between them, which is the opposite of AOA diagramming.

Question 6

The three principal methods for accelerating project activities are to change the __________, __________, and __________ of the project resources.

Accepted Answer

The answer of The three principal methods for accelerating project...

Question 7

__________ represent one of the first attempts to develop a network diagram that orders project activities by baseline calendar dates.

Accepted Answer

The answer of __________ represent one of the first attempts...

Question 8

Quite often the marginal gains in employee productivity decrease dramatically with the increased use of overtime.

Accepted Answer

Studies have shown that after a certain point, the increase in productivity from working overtime decreases significantly, and can even lead to burnout and decreased performance in the long run. Therefore, the marginal gains in productivity tend to diminish with increased use of overtime.

Question 9

Most activity estimations using PERT methods lead to overly optimistic activity duration estimates.

Accepted Answer

PERT involves estimating three times for each activity - optimistic, most likely, and pessimistic. The estimates are then combined to calculate the expected duration. However, often people tend to be too optimistic when estimating the optimistic and most likely times, leading to an overall overly optimistic estimate for the activity duration.

Question 10

PERT analysis is based on __________ estimates, which, if unreasonably determined, can lead to inaccurate and misleading project schedules.

Accepted Answer

The answer of PERT analysis is based on __________ estimates,...

Question 11

In order to accelerate completion of a project, the manager must crash critical path activities.

Accepted Answer

Crashing critical path activities can help to reduce the overall project timeline and accelerate completion. This involves adding additional resources or shortening the duration of critical activities to expedite their completion.

Question 12

The process of accelerating a project is referred to as __________.

Accepted Answer

The answer of The process of accelerating a project is...

Question 13

In analyzing crash options for project activities, each activity has a slope that is calculated as the __________ divided by the __________.

Accepted Answer

The answer of In analyzing crash options for project activities,...

Question 14

Networks are adaptable and useful for all scheduling challenges that an organization faces.

Accepted Answer

Networks, while versatile, may not be the best solution for all scheduling challenges due to their complexity, the specific nature of some tasks, and the limitations in representing certain constraints or preferences within a network structure.

Question 15

The least common type of lag relationship occurs when a successor's finish is dependent upon a predecessor's start.

Accepted Answer

The answer of The least common type of lag relationship...

Question 16

Finish to start lags are the same as additional activity slack.

Accepted Answer

Finish to start lags refer to the delay between two activities where the successor activity cannot start until the predecessor activity finishes. Additional activity slack, on the other hand, refers to the amount of time an activity can be delayed without delaying the entire project. These two concepts are not the same.

Question 17

Gantt charts cannot depict float.

Accepted Answer

Gantt charts can depict float through the use of slack time or dummy activities.

Question 18

The primary drawback with __________ networks occurs when the project is very complex, with numerous paths through the model.

Accepted Answer

The answer of The primary drawback with __________ networks occurs...

Question 19

If a project is extraordinarily complex, rather than showing every possible path through the network and every activity sequence, a(n) __________ that shows only the key subroutines or network paths can be created.

Accepted Answer

The answer of If a project is extraordinarily complex, rather...

Question 20

AOA is a more useful technique than AON if the project is complex and has many significant milestones.

Accepted Answer

AOA allows for the identification and highlighting of significant milestones in a complex project, making it easier to manage and track progress. AON is better suited to simple projects with few milestones.

Quiz 10: Project Scheduling: Lagging, Crashing, and Activity Networks