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

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

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Industrial Engineering and Production Management
Pick up the incorrect statement about advantages of work sampling

No time measuring devices are generally needed
Permits a fine breakdown of activities and delays
Calculations are easier, method is economical and less time consuming
Simultaneous study of many operators may be made by a single observer

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Industrial Engineering and Production Management
Time study is carried out

By breaking up each operation into small elements which are measurable with the help of the measuring device accurately
All of these
By finding all the significant informations regarding the job, work place and machine tool etc
By observing and recording the time taken by the operator for an operation

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