PMI Scheduling Professional Certification (PMI-SP) Practice Exam

Which of the following describes a project activity with zero float?

1. It has flexibility in its timing

2. It is essential to keep the project on schedule

3. It can be delayed without consequence

4. It happens after all other activities need to be completed

The correct answer is: It is essential to keep the project on schedule

A project activity with zero float, often referred to as a critical activity, is one that must be completed on time to ensure that the overall project schedule is maintained. If this activity is delayed, it can cause a delay in the entire project since there is no leeway or flexibility in start or finish times. Essentially, the timing of a zero float activity is non-negotiable, making it essential to the successful progression of the project. Understanding that this type of activity has no float is crucial for project scheduling, as it helps project managers identify which tasks can be closely monitored and which ones are critical to delivering the project on time. This insight allows for better resource allocation and prioritization of workflow, ensuring that all critical tasks are completed as planned to meet project deadlines.