Exam 16: Pert CPM models for project management

Although PERT and CPM were originally developed for somewhat different types of projects,they are now nearly identical in terms of analysis and procedures

An activity in a project network cannot begin until all of the activities leading into that activity have been completed

The earliest finish time for an activity is equal to the latest finish time minus the duration of the activity

There is currently no method that permits activities and their immediate predecessors to overlap

The duration of the critical path is:

At which point does crashing of a project cease?

The critical path for the network shown is:

There are four activities on the critical path,and they have standard deviations of 1,2,4,and 2 days The standard deviation of the critical path is:

What is the probability that this project will be completed within 205 days?

In PERT,the path with the fewest activities is referred to as the critical path

In crashing a project,a manager will generally focus on activities which:

-What is the estimated slack time for activity D?

PERT/Cost:

-What is the estimated standard deviation in the time for activity Z?

Projects involve routine activities that are performed repeatedly

A Gantt chart of a project shows the scheduled start and finish times for activities

The sum of durations of the longest path in a project network indicates expected project completion time,and the activities are the critical activities

PERT/Cost is a systematic procedure to help a project manager bid on a project

The slack for path A-D-H-I is:

A manager has decided that an activity has a pessimistic estimate of 15 days,a most-likely estimate of 6 days,and an optimistic estimate of 3 days The expected duration of this activity is 6 days