Industrial Engineering and Production Management
Time study is carried out

By breaking up each operation into small elements which are measurable with the help of the measuring device accurately
All of these
By observing and recording the time taken by the operator for an operation
By finding all the significant informations regarding the job, work place and machine tool etc

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Industrial Engineering and Production Management
When slack of an activity is positive

Any one of the above
It represents a situation where extra resources are available and the completion of project is not delayed
The activity is critical and any delay in its performance will delay the completion of whole project
It represents that a programme falls behind schedule and additional resources are required to complete the project in time

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