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

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Industrial Engineering and Production Management
Work sampling is applied for

All of these
Estimating the percentage of the time consumed by various job activities
Finding out time standards, specially where the job is not repetitive and where time study by stop watch method is not possible
Estimation of the percentage utilization of machine tools

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