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

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

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Industrial Engineering and Production Management
The purpose of micro-motion study is to

All of these
Help in collecting the motion time data for synthetic time standards
Train the individual operator regarding the motion economy principles
Assist in finding out the most efficient way of doing work

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