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

All of the these
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

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Industrial Engineering and Production Management
Work study is mainly aimed at

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

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