Industrial Engineering and Production Management
Which of the following statement is correct about the network diagram?

All of the these
The tail end of the arrow represents the start of an activity.
The head of the arrow represents the end of an activity.
The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.

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Industrial Engineering and Production Management
Time study is carried out

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
All of these
By breaking up each operation into small elements which are measurable with the help of the measuring device accurately

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