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

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

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Industrial Engineering and Production Management
Work study is mainly aimed at

Economizing the motions involved on the part of the worker while performing a job
Establishing the minimum time of completion of a job
Determining the most efficient method of performing a job
Developing the standard method and standard time of a job

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Industrial Engineering and Production Management
The critical path of a network represents

The maximum time required for completion of project
Minimum cost required for completion of project
The minimum time required for completion of project
Maximum cost required for completion of project

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Industrial Engineering and Production Management
The assumption in PERT is

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

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