Question 1

Gantt charts cannot depict float.

Accepted Answer

Gantt charts can depict float or slack time, which refers to the amount of time an activity can be delayed without affecting the project's overall timeline.

Question 2

The most common type of logical sequencing between tasks is the ________ relationship.

Accepted Answer

finish to start

Question 3

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

Accepted Answer

Gantt charts

Question 4

In an actual project,one means of crashing critical path activities would be to perform at a lower level of quality.

Accepted Answer

Lowering the level of quality can reduce the amount of time and resources required to complete an activity, but it can also have negative impacts on the overall project outcome. Therefore, it is often considered a risky approach to crashing critical path activities.

Question 5

The critical path may not contain a dummy activity.

Accepted Answer

The answer of The critical path may not contain a...

Question 6

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

Accepted Answer

Crashing critical path activities means shortening the duration of those activities in order to speed up the overall project completion time. This is a common technique used to accelerate a project, but it can come with additional costs or risks.

Question 7

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

Accepted Answer

While overtime can be useful in certain situations, such as meeting tight deadlines, studies have shown that it can lead to fatigue and burnout, which ultimately reduces productivity. Therefore, the marginal gains in productivity from overtime tend to diminish as employees work longer hours.

Question 8

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 9

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

Accepted Answer

PERT methods tend to be optimistic because they rely on the most likely time estimate rather than the worst-case scenario. This can lead to unrealistic expectations and delayed project completion.

Question 10

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 11

Gantt charts can display early start or late start logic.

Accepted Answer

Gantt charts can display both early start and late start logic, along with other scheduling information such as duration and dependencies. Early start logic shows when a task must start in order to finish on time, while late start logic shows the latest possible start date for a task without delaying the overall project completion date.

Question 12

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

Accepted Answer

Finish to start lags refer to the delay between the completion of one activity and the start of another, whereas additional activity slack refers to the amount of time an activity can be delayed without affecting the overall project schedule. They are not the same thing.

Question 13

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 14

Most project management software employs AOA diagramming

Accepted Answer

Most project management software employs AON (Activity-On-Node) diagramming, which is a type of network diagram that represents the sequence of activities in a project. AOA (Activity-On-Arrow) diagramming is an older method that is less commonly used today.

Question 15

For large projects,network diagrams are more useful if they are completely detailed.

Accepted Answer

The answer of For large projects,network diagrams are more useful...

Question 16

Start-to-start lags are becoming increasingly used as a means to accelerate projects through a process known as ________.

Accepted Answer

The answer of Start-to-start lags are becoming increasingly used as...

Question 17

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

Accepted Answer

AOA (Activity on Arrow) allows for milestones to be easily identified on the network diagram, which can help with tracking progress and managing dependencies in more complex projects. AON (Activity on Node) can be more useful for simpler projects where milestones are less significant.

Question 18

A(n)________ relationship is appropriate where two or more linked activities must be completed before a successor is begun.

Accepted Answer

The answer of A(n)________ relationship is appropriate where two or...

Question 19

Dummy activities are used in AOA networks to indicate the existence of precedent relationships between activities and their event nodes.

Accepted Answer

This statement is true. Dummy activities serve as placeholders in AOA networks to depict the sequential relationships between activities and their corresponding event nodes.

Question 20

Brook's Law states that the typical crashing decision to add more resources to an activity only delays the activity further.

Accepted Answer

Brook's Law states that adding more resources to an already delayed activity may actually delay the activity further. This is because new resources may require time to integrate into the existing team and may also increase communication overhead. This is why it is important to carefully consider the impact of adding more resources before making a decision to crash a project schedule.

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