The document discusses the construction of project networks and the determination of critical paths for various activities with specific precedences and durations. It includes six distinct project scenarios, detailing the activities and their respective dependencies and durations in days. Each scenario is aimed at identifying the essential path that dictates the project's timeline.

1. 1. Draw a network for the Project. Determine the critical path.
Activity A B C D E F G
Precedence None A None C A B,D E,F
Durations
( Day)
10 15 10 23 3 12 15

2. 2. Draw a network for the Project. Determine the critical path.
Activity A B C D E G H I J K L
Precedence None None None A A B B D,E C H,J G,I,K
Durations
( Day)
2 2 2 3 4 7 6 4 10 3 4

3. 3. Draw a network for the Project. Determine the critical path.
Activity A B C D E F G H S J K T M
Precedence None None A A B B B C D,E F H H,S,J J
Durations
( Day)
2 3 3 2 4 3 9 3 4 2 1 6 1

4. 4. Draw a network for the Project. Determine the critical path.
Activity A B C D E F G H I J K
Precedence NO NO NO NO A,B A,B D
C,D,
F
C,D,
F
E,H G,I
Durations
( Day)
7 13 5 2 9 5 9 3 10 4 8

5. 5. Draw a network for the Project. Determine the critical path.
Activity A B C D E F G
Precedence None None A B C,D C,D F
Durations
( Day)
3 2 5 5 6 2 2

6. 6. Draw a network for the Project. Determine the critical path.
Activity A B C D E F G H I J
Precedence NO A A A B D B C,D F H,F
Durations
( Day)
2 3 4 5 7 4 6 3 3 2

7. Activity ES EF LS LF TF CP