Industrial Engineering and Production Management
Which of the following statement is correct about the network diagram?

The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.
The tail end of the arrow represents the start of an activity.
The head of the arrow represents the end of an activity.
All of the these

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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
Estimating the percentage of the time consumed by various job activities
All of these

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