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

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

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Industrial Engineering and Production Management
Activity slack or float of any event on a PERT/CPM chart is represented by

Latest start time of succeeding event earliest finish time of preceding event activity time
Latest finish time of event earliest finish time of the event
Latest start time of the event earliest start time of the event
Anyone of the above

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