Industrial Engineering and Production Management
Work study is most useful

Where production activities are involved
In judging the output of a man and improving it
In judging the rating of machines
In improving industrial relations

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Industrial Engineering and Production Management
Pick up the incorrect statement about advantages of work sampling

No time measuring devices are generally needed
Simultaneous study of many operators may be made by a single observer
Permits a fine breakdown of activities and delays
Calculations are easier, method is economical and less time consuming

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