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प्रश्न
Draw the network and calculate the earliest start time, earliest finish time, latest start time and latest finish time of each activity and determine the Critical path of the project and duration to complete the project.
| Jobs | 1 - 2 | 1 - 3 | 2 - 4 | 3 - 4 | 3 - 5 | 4 - 5 | 4 - 6 | 5 - 6 |
| Duration | 6 | 5 | 10 | 3 | 4 | 6 | 2 | 9 |
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उत्तर
E1 = 0
E2 = 0 + 6 = 6
E3 = 0 + 5 = 5
E4 = 6 + 10 = 16
E5 = (5 + 4) or (16 + 6)
Whichever is maximum
= 22
E6 = (16 + 2) or (22 + 9)
Whichever is maximum
= 31
L6 = 31
L5 = 31 – 8 = 22
L4 = 22 – 6 = 16 or (31 – 2)
whichever is minimum
L3 = 22 – 4 = 18
L2 = 16 – 10 = 6
L1 = 6 – 6 = 0
| Activity | Duration tij |
EST | EFT = EST + tij | LST = LFT – tij | LFT |
| 1 - 2 | 6 | 0 | 6 | 6 – 6 = 0 | 6 |
| 1 - 3 | 5 | 0 | 5 | 18 – 5 = 13 | 18 |
| 2 - 4 | 10 | 6 | 16 | 16 – 10 = 6 | 16 |
| 3 - 4 | 3 | 5 | 8 | 16 – 3 = 13 | 16 |
| 3 - 5 | 4 | 5 | 9 | 22 – 4 = 18 | 22 |
| 4 - 5 | 6 | 16 | 22 | 22 – 6 = 16 | 22 |
| 4 - 6 | 2 | 16 | 18 | 31 – 2 = 29 | 31 |
| 5 - 6 | 9 | 22 | 31 | 31 – 9 = 22 | 31 |
Since EFT and LFT is same on 1 - 2, 2 - 4, 4 - 5 and 5 - 6, the critical path is 1 - 2 - 4 - 5 - 6 and duration time taken is 31 days.
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संबंधित प्रश्न
Draw the event oriented network for the following data:
| Events | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Immediate Predecessors | - | 1 | 1 | 2, 3 | 3 | 4, 5 | 5, 6 |
Construct the network for each the projects consisting of various activities and their precedence relationships are as given below:
| Activity | A | B | C | D | E | F | G | H | I | J | K |
| Immediate Predecessors | - | - | - | A | B | B | C | D | E | H, I | F, G |
A project schedule has the following characteristics
| Activity | 1 - 2 | 1 - 3 | 2 - 4 | 3 - 4 | 3 - 5 | 4 - 9 | 5 - 6 | 5 - 7 | 6 - 8 | 7 - 8 | 8 - 10 | 9 - 10 |
| Time | 4 | 1 | 1 | 1 | 6 | 5 | 4 | 8 | 1 | 2 | 5 | 7 |
Construct the network and calculate the earliest start time, earliest finish time, latest start time and latest finish time of each activity and determine the Critical path of the project and duration to complete the project.
The following table use the activities in a construction projects and relevant information
| Activity | 1 - 2 | 1 - 3 | 2 - 3 | 2 - 4 | 3 - 4 | 4 - 5 |
| Duration (in days) |
22 | 27 | 12 | 14 | 6 | 12 |
Draw the network for the project, calculate the earliest start time, earliest finish time, latest start time and latest finish time of each activity and find the critical path. Compute the project duration.
One of the conditions for the activity (i, j) to lie on the critical path is
In a network while numbering the events which one of the following statements is false?
Which of the following is not correct?
The objective of network analysis is to
Draw a network diagram for the following activities.
| Activity code | A | B | C | D | E | F | G | H | I | J | K |
| Predecessor activity | - | A | A | A | B | C | C | C, D | E, F | G, H | I, J |
A Project has the following time schedule
| Activity | 1 - 2 | 2 - 3 | 2 - 4 | 3 - 5 | 4 - 6 | 5 - 6 |
| Duration (in days) |
6 | 8 | 4 | 9 | 2 | 7 |
Draw the network for the project, calculate the earliest start time, earliest finish time, latest start time and latest finish time of each activity and find the critical path. Compute the project duration.
