Industrial Engineering and Production Management
In order that linear programming techniques provide valid results

Relations between factors must be linear (negative)
Relations between factors must be linear (positive)
Either (A) or (B)
Only one factor should change at a time, others remaining constant

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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
Each activity is represented by one and only one arrow in the network
Dangling must be avoided in a network diagram
All of the these

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