Which of these statements regarding time-cost tradeoffs in CPM networks is true?
A)Crashing is not possible unless there are multiple critical paths.
B)Crashing a project often reduces the length of long-duration,but noncritical,activities.
C)Activities not on the critical path can never be on the critical path,even after crashing.
D)Crashing shortens the project duration by assigning more resources to one or more of the critical tasks.
E)The crash time always exceeds the normal time.

Question

Quizplus · Accepted Answer

Crashing involves shortening the project duration by adding more resources to critical tasks, thus reducing their duration. This can only be done on critical tasks, which are the tasks on the critical path. Therefore, option A and C are incorrect. Option B is not always true as noncritical tasks can also be crashed if doing so reduces the project duration. Option E is also not always true as the crash time can be less than or equal to the normal time in some cases.

Which of These Statements Regarding Time-Cost Tradeoffs in CPM Networks