Which of the following is correct about CPM and PERT?

[A = Earliest start time, B = Latest start time, C = Earliest finish time, D = Latest finish time, E = Total float]

Question

Question

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BHEL Engineer Trainee Mechanical 24 Aug 2023 Official Paper

Answer 1

Explanation:

CPM & PERT:

CPM (Critical Path Method) and PERT (Program Evaluation and Review Technique) are both project management techniques used to plan, schedule, and control complex projects. They are essential tools for project managers to ensure that projects are completed on time and within budget. Understanding the key concepts and terminology associated with CPM and PERT is crucial for effective project management.
Earliest Start Time (A): This is the earliest time at which a task can begin without any delay in the project. It is determined by the completion times of preceding tasks.
Latest Start Time (B): This is the latest time a task can start without delaying the project. It is calculated by working backward from the project's end date.
Total Float (E): This is the amount of time that a task can be delayed without affecting the overall project timeline. It is calculated as the difference between the latest start time (B) and the earliest start time (A).

Therefore, the correct formula to calculate the total float (E) is:

E = B - A

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