Industrial Engineering and Production Management
The purpose of micro-motion study is to

Assist in finding out the most efficient way of doing work
Train the individual operator regarding the motion economy principles
All of these
Help in collecting the motion time data for synthetic time standards

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Industrial Engineering and Production Management
In queuing theory, the nature of the waiting situation can be studied and analysed mathematically if

Arrival and waiting times are known and can be grouped to form a waiting line model
The laws governing arrivals, service times, and the order in which the arriving units are taken into source are known
Complete details of items in, waiting line are known
All variables and constants are known and form a linear equation

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Industrial Engineering and Production Management
When slack of an activity is negative

All of these
It represents a situation where extra resources are available and the completion of project is not delayed
It represents that a programme falls behind schedule and additional resources are required to complete the project in time
The activity is critical and any delay in its performance will delay the completion of whole project

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