PMI Exam PMI-SP Topic 4 Question 62 Discussion

Lag time is positive time that requires the successor activity to wait for a defined

amount of time, such as three days, before it can begin. Lag

time does not change the task relationship, but requires a 'waiting time' before the starting of the

activity can begin.

A lag time is a delay between the predecessor and the successor tasks. Sometimes it may be needed

to schedule a delay between the

predecessor and the successor tasks. For example, if two coats of paint are required to paint a car,

then the final coat should be applied only

when the first coat dries. This delay is known as the lag time. The lag time is entered as a positive

value. The lag time can be entered as a

duration or as a percentage of the predecessor's task duration. It is entered on the Predecessor tab

in the Task Information dialog box.

Answer option D is incorrect. Float is a natural event that is discovered through the forward pass

when using the critical path method. Float

cannot be arbitrarily added as lag.

Answer option C is incorrect. Lead time actually brings activities closer together and causes them, in

some cases, to overlap.

Answer option B is incorrect. Management reserve is a pool of time allotted for unscheduled

changes and events that affect the project

duration.