Industrial Engineering and Production Management
The important file in making a PERT is

No activity from any event can be started from preceding event till it is completed
All of the these
An event can't be accomplished until activities leading to it are completed
Length of arrow has nothing to do with time

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Industrial Engineering and Production Management
Pick up the incorrect statement from the following. A critical ratio scheduling

All of the these
Establishes the relative priorities among various activities on a common basis
Determines the status of each activity
Adjusts automatically changes in activity progress

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