Industrial Engineering and Production Management
The correct sequence of phases in value engineering is

Creative phase, information phase, investigation phase, evaluation phase
Investigation phase, information phase, creative phase, evaluation phase
Creative phase, investigation phase, evaluation phase, information phase
Information phase, creative phase, investigation phase, evaluation phase

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

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

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Industrial Engineering and Production Management
When slack of an activity is positive

Any one of the above
It represents that a programme falls behind schedule and additional resources are required to complete the project in time
The activity is critical and any delay in its performance will delay the completion of whole project
It represents a situation where extra resources are available and the completion of project is not delayed

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