Question: Define Critical path, Slack time, Resource Levelling and Dummy activity with reference to PERT and CPM. An architect has been awarded a contract to prepare
Define "Critical path", "Slack time", "Resource Levelling" and "Dummy activity" with reference to PERT and CPM.
An architect has been awarded a contract to prepare plans for an urban renewal project. The job consists of the following activities and their estimated value. Draw a critical path arrow diagram for this project, indicate the critical path and calculate the total slack and free slack for each activity.

Job Description Predecessor Expected time in days A Prepare preliminary NA 2 sketches B Outline specifications NA C Prepare drawings A 3 D Write specifications A B 2 E Run prints CD F Have specifications printed BD 3 G Assemble bid package EF
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