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

Dangling must be avoided in a network diagram
Dummy activity consumes no time or resource
Each activity is represented by one and only one arrow in the network
All of the these

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Industrial Engineering and Production Management
Micro motion study is

Analysis of a man-work method by using a motion picture camera with a timing device in the field of view
Motion study observed on enhanced time intervals
Study of man and machine conducted simultaneously
Motion study of a sequence of operations conducted systematically

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