Industrial Engineering and Production Management
Work sampling is applied for

Finding out time standards, specially where the job is not repetitive and where time study by stop watch method is not possible
Estimation of the percentage utilization of machine tools
All of these
Estimating the percentage of the time consumed by various job activities

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Industrial Engineering and Production Management
The critical path of a network represents

Minimum cost required for completion of project
The minimum time required for completion of project
The maximum time required for completion of project
Maximum cost required for completion of project

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