Industrial Engineering and Production Management
In a PERT chart

Only critical activities are numbered
All activities should be numbered
Only selected activities are numbered
Only important activities should be numbered

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

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

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