The Denver Iron and Steel Company is expanding it operations to include a new drive-in weight station. The weight station will be a heated/air conditioned building with a large floor and small office. The large room will have the scales, a 15-foot counter, and several display cases for it equipment. Before erection of the building, the project manager evaluated the project using PDM/CPM analysis. The activities with their correspondence times were recorded in table A. Using PDM/CPM analysis, find the critical path, the slack times and the expected completion time.
The Denver Iron and Steel Company is expanding it operations to include a new drive-in weight station. The weight station will be a heated/air conditioned building with a large floor and small office. The large room will have the scales, a 15-foot counter, and several display cases for it equipment. Before erection of the building, the project manager evaluated the project using PDM/CPM analysis. The activities with their correspondence times were recorded in table A. Using PDM/CPM analysis, find the critical path, the slack times and the expected completion time.
Table A.
Times
# Activity Optimistic Most Likely Pessimistic Preceding Tasks
1 Lay Foundation 8 10 13 --
2 Dig hole for scale 5 6 8 --
3 Insert scale bases 13 15 21 2
4 Erect frame 10 12 14 1,3
5 Complete building 11 20 30 4
6 Insert scales 4 5 8 5
7 Insert display cases 2 3 4 5
8 Put in office equip 4 6 10 7
9 Finishing touches 2 3 4 8,6