Which statement describes Task 1002's dependency on Task 1001?

Which statement describes Task 1002's dependency on Task 1001?

• A. It must start immediately after Task 1001 finishes.
• B. It cannot start until Task 1001 finishes and 10 days have passed.
• C. It is independent of Task 1001.
• D. It must finish before Task 1001 starts.

Answer: (B)

Understanding how task dependencies with a lag work helps explain why this option is correct. When one task cannot start until another finishes, and there is a specified waiting period before the next can begin, that is a finish-to-start relationship with a lag. Here, Task 1002 cannot begin until Task 1001 is finished and an additional 10 days must pass. The start of Task 1002 is therefore constrained to Task 1001’s finish plus a 10-day delay. This captures the idea of a required gap between the completion of the first task and the start of the second. If there were no delay, Task 1002 could start immediately after 1001 finishes, which would be a finish-to-start with zero lag. If Task 1002 were independent, its timing would not depend on 1001 at all. If Task 1002 had to finish before Task 1001 starts, that would reverse the logical order of work and isn’t a typical or feasible dependency in this context. Hence, the description stating that 1002 cannot start until 1001 finishes and 10 days have passed best matches the dependency.

Understanding how task dependencies with a lag work helps explain why this option is correct. When one task cannot start until another finishes, and there is a specified waiting period before the next can begin, that is a finish-to-start relationship with a lag. Here, Task 1002 cannot begin until Task 1001 is finished and an additional 10 days must pass. The start of Task 1002 is therefore constrained to Task 1001’s finish plus a 10-day delay. This captures the idea of a required gap between the completion of the first task and the start of the second.

If there were no delay, Task 1002 could start immediately after 1001 finishes, which would be a finish-to-start with zero lag. If Task 1002 were independent, its timing would not depend on 1001 at all. If Task 1002 had to finish before Task 1001 starts, that would reverse the logical order of work and isn’t a typical or feasible dependency in this context. Hence, the description stating that 1002 cannot start until 1001 finishes and 10 days have passed best matches the dependency.