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

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

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

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

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