Industrial Engineering and Production Management
Work sampling is applied for

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

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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

All variables and constants are known and form a linear equation
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
Arrival and waiting times are known and can be grouped to form a waiting line model

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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
By observing and recording the time taken by the operator for an operation
By finding all the significant informations regarding the job, work place and machine tool etc
All of these

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Industrial Engineering and Production Management
Slack represents the difference between the

Latest allowable time and the normal expected time
Proposed allowable time and the earliest expected time
Normal allowable time and the latest expected time
Latest allowable time and the earliest expected time

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