Industrial Engineering and Production Management
Work study is concerned with

Improving production planning and control
Motivation of workers
Improving production capability
Improving present method and finding standard time

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Industrial Engineering and Production Management
Activity slack or float of any event on a PERT/CPM chart is represented by

Anyone of the above
Latest finish time of event earliest finish time of the event
Latest start time of the event earliest start time of the event
Latest start time of succeeding event earliest finish time of preceding event activity time

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