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 head of the arrow represents the end 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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Industrial Engineering and Production Management
Which of the following are the guidelines for the construction of a network diagram?

All of the these
Dangling must be avoided in a network diagram
Dummy activity consumes no time or resource
Each activity is represented by one and only one arrow in the network

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