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
The assumption in PERT is

A project will always be behind schedule, if left uncorrected
Activities are fixed and can't be changed
A project can be subdivided into a set of predictable, independent activities
Cost of project will always be more than the estimated cost, if no timely corrections are taken

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