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Exam 16: Job and Staff Scheduling

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Question 31

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Given the following data for jobs awaiting processing at a manufacturing cell in which jobs are first processed by machine A, then by Machine B: -In developing the sequence which will minimize make-span,what is the initial job to be placed in the schedule sequence?

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Question 32

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Given the following data for jobs awaiting processing at a manufacturing cell in which jobs are first processed by machine A, then by Machine B: -In developing the sequence which will minimize make-span,what is the second job to be added to the sequence?

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Question 33

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Two different approaches to load work centres in job scheduling are:

For service systems with customers directly involved in the process,FCFS is the dominant priority rule.

Loading refers to the assignment of jobs to work centres.

Splitting a large lot at one or more operations after a bottleneck operation would reduce the waiting time of the bottleneck operation.

In the drum-buffer-rope conceptualization used in the theory of constraints,the "drum" that sets the pace for production refers to:

If Jack uses the first come,first served (FCFS) priority rule to schedule these jobs,what will be the average flow time?

Use Johnson's Rule to determine the optimum processing sequence for the jobs listed below.Chart make-span.

Which of the following is the last step in the production planning hierarchy before actual output is produced?

If Jack uses the shortest processing time first (SPT) priority rule to schedule these jobs,what will be the average flow time?

What is the make-span for the optimal schedule?

For a one machine/station shop,the shortest (imminent)processing time (SPT)priority rule will always result in the lowest average flow time.

Scheduling work centre loading must be completed before starting materials requirement planning (MRP).

Shift scheduling for services involves: I.forecasting the amount of work to be done per time period. II.assigning shifts to staff based on skill and availability. III.converting work per time period into number of workers required.

Sequencing is concerned with the order in which jobs are processed,while loading is concerned with assigning jobs to work centres or workstations.

What is the optimum job sequence for the jobs listed below,using Johnson's Rule?

Backward scheduling is based on working back from the due dates for jobs.

Bottlenecks occur at work centres when the idle time is equal to zero.

The primary limitation of the first come,first served (FCFS)priority rule is that short jobs will tend to delay longer jobs that follow.