Question: Attempt TWO questions from Section A Question A1 The following table represents a plan for a given project. Activity Predecessor Optimistic Most Likely Pessimistic A

Attempt TWO questions from Section A Question A1 The following table represents a plan for a given project. Activity Predecessor Optimistic Most Likely Pessimistic A None 1 4 7 B A 4 8 12 A 2 4 6 D A 5 9 13 E B 3 4 5 F B.C 4 8 12 G C 3 5 7 H D 7 11 15 BE, F 2 5 8 J F.GH 3 4 5 K H 6 8 10 L LJ.K 4 7 10 a) Construct the network diagram using activity on node notation [20%) [20% b) Identify the critical path. c) What is the expected completion time for the project? 120%) d) Calculate the probability that the project can be completed in 40 weeks. 20% e) In your own words, critically comment on the advantages and limitations of PERT calculations when used in the management of large-scale engineering projects (20%

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