state gov TSPSC Polytechnic Lecturer Mock Test 2022 Construction Materials and Management Project Planning CPM
The project activities are given in the following table along with the duration and dependency.
| Activities |
Duration (days) |
Depends on |
| P | 10 | - |
| Q | 12 | - |
| R | 5 | P |
| S | 10 | Q |
| T | 10 | P, Q |
Which one of the following combinations is correct?
1
Total duration of the project = 22 days, Critical path is Q → S
2
Total duration of the project = 20 days, Critical path is Q → T
3
Total duration of the project = 22 days, Critical path is P → T
4
Total duration of the project = 20 days, Critical path is P → R