Chapter 5 Project Management
What is the standard deviation of a task with optimistic, most likely, and pessimistic times of 3, 4, and 7 days respectively assuming the estimates were made at the 99% plus level?
.667
What is it a milestone?
a significant event in the project
Which of the following terms is most closely associated with a task required by the project?
activity
An identifiable state resulting from the completion of one or more activities is called?
an event
Which of the following is NOT an element of the Gantt chart?
variance of the critical path
A Gantt chart can not depict a critical path, only a PERT/CPM chart can
False
A disadvantage of Gantt charts is that they are hard to draw
False
A disadvantage of using beta distribution to approximate activity times is that it is generally less flexible than the normal distribution.
False
A start-to-finish linkage is the most common way of linking to successive task
False
An event is a series of connected activities
False
Another name for total slack is free slack.
False
If task duration estimates are carefully made, the project manager needs to only examine the critical path when conducting a risk analysis.
False
It is easiest to see lead and lag time in a project task on a PERT/CPM networks
False
Milestones are not depended upon the predecessor activities in the project plan.
False
Milestones cannot be identified on a Gantt Chart.
False
Networks are usually drawn with a "Start" node to the right and a "Finish" node to the left.
False
Technical dependencies are generally easier to see on a Gantt chart than on PERT/CPM networks
False
The difference between EST and LFT is called slack
False
The difference between LST and LFT is called slack.
False
The movement from left to right through the network beginning with the start node that calculates the LS and LF for each activity is known as "FORWARD PASS"
False
The start-to-finish linkage is used in situations where is it desirable for two or more activities to finish at the same time.
False
The tasks of project planning, project budgeting, and project scheduling are largely separable from one another
False
To manage a project successfully, the project manager need only pay close attention to tasks on the critical path
False
When it was originally developed, PERT used certain (deterministic) methods to estimate activity duration
False
What is the expected time to complete a task with an optimistic, most likely, and pessimistic times of 3, 4, and 7 days respectively?
4.3
Slack is calculated as?
LFT - EFT
Technical dependencies on a project plan are easiest to see on a:
PERT/CPM chart
A Term not used in the discussion of PERT/CPM analysis is
Sensitivity path
What is project slack?
The amount of time the critical path of a project can be delayed without making the project late
"Merger" is a term used to describe the situation in which two or more paths in a network join together.
True
A big advantage of AON networks is that they are easier to draw
True
A diagram of nodes connected by directional arcs that defines the project and illustrates the technical of all activities is referred to as a network.
True
A project schedule is a project action plan converted into a timetable
True
A situation where two or more activities have the same starting and finishing nodes or where a single activity connects to two or more nodes is called a dummy task
True
AON and AOA networks can both be used to depict any project network
True
Critical path tasks always have zero slack.
True
Events in a project consume no resources or time.
True
Float refers to the amount of time a noncritical task can be delayed without causing a delay in the entire project.
True
Standard Pert/CPM networks can be used to resolve probabilistic concerns
True
Technical dependencies are often harder to see on a Gantt chart than on a PERT/CPM network.
True
The actual project duration will be known with certainty after the project is completed
True
The amount of time an activity can be delayed without affecting the start time of any successor activity is known as free slack.
True
The difference between LFT and EFT is called slack
True
The difference between the LST and EST is called slack
True
The formula for the expected time of an activity in a network assumes that the optimistic, pessimistic, and most likely time estimates have a Beta distribution.
True
The shortest time to complete a network is equal to the duration of the longest path through the network.
True
The simulation approach is generally preferred over the statistical method.
True
Which of the following is typically used as the best estimate of task duration?
expected time
PERT was originally used for what type of project?
military
The amount of time a noncritical task can be delayed without delaying the project is called?
slack
Which of the following linkages is used to start two or more activities at the same time?
start-to-start
For which purpose is simulation NOT used with regard to project scheduling?
to verify the accuracy of the optimistic, pessimistic and most likely time estimates