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UNIT-2.pptx
The document contains information about a project network including: (i) Task names (A-K), predecessor tasks, optimistic, pessimistic and most likely times for each task. (ii) The critical path is task A->B->G->F->E->D->I->J->C->H->K. (iii) The project completion time following the critical path is 11 + 5 + 4 + 3 + 8 + 5 + 7 + 5 = 48 days.
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UNIT-2.pptx
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- 2. Acti vity Prede cessor Completi on time A -2 B - 9 C - 4 D A 5 E D 8 F E 3 G B 4 H G,I 11 I C 5 J C 7 K J 5 A B G F E D I J C H K
- 4. ā¢ A projectis represented by the network shown below and has the following data. Determine (i) the critical path and, (ii) project completion time. Task A B C D E F G H I Optimistic time (days) 4 18 26 16 15 6 8 7 3 Pessimistic time (days) 10 22 40 20 25 12 12 9 5 Most likely time (days) 7 20 33 18 20 9 10 8 4
- 5. Network modelling ā¢ Thetime and cost estimates of different activities of a project and their precedence relationship are ' given below: Overhead costs amount to Rs. 1,000 per week. It is stipulated that the contractor will have to pay a penalty of Rs. 2,000 per week for completing the project beyond 16 weeks. i) Show the critical path in the network Diagram. ā¢ (ii) Find out the cost slope for every activity using normal and crash date for time and cost. ā¢ (iii) Crash the project to 16 weeks, Estimate the total cost of crashing. Activity Preceding activity Time (weeks) Cost (Rs.) Normal Crash Normal Crash A - 6 4 10,000 14,000 B - 4 3 5,000 8,000 C A 3 2 4,000 5,000 D B 8 3 1,000 6,000 E B 14 6 9,000 13,000 F C,D 8 4 7,000 8,000