Question

Q10: Renovations are occurring at our Internet of Tea Maker plant, Plant II. Nine activities and eight events are required to execute and complete the construction program. The activities and their completion times in weeks are as follows: Activity AB AC AD BE CF DE EFEG FG Duration8 15 13 12 20 8 7 10 Represent the program in the form of an activity-event network and identify the critical path. i) ii) Determine the shortest possible time for program completion.

Answer 1

The path marked in red is the most critical path

12 8 13 10 AD 8 7 15 20

Total no. of weeks to complete the task Paths A-B-E-G A-B-E-F-G A-D-E-F-G A-D-E-G A-C-F-G 29 - 32 38 35 42 8+9+12 8+9+8+7 10+13+8+ 10+13+12 15+20+7 - -

Path A-B-E-G is the most critical path requiring 29 weeks to complete the task.