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Exam 23: Job and Staff Scheduling

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Question 51

True/False

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

A) True
B) False

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Question 52

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Input/Output (I/O) control is used to:

A) increase work flows and queues at a work centre.
B) ensure overloading of a work centre to maximize efficiency.
C) minimize WIP at a work centre
D) manage work flows and queues at a work centre.
E) maximize make-span.

F) A) and B)
G) B) and C)

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Question 53

Multiple Choice

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Jack,the owner of Jack's Electronic Repair,currently has five jobs to be scheduled,shown in order in which they arrived: If Jack uses the shortest processing time first (SPT) priority rule to schedule these jobs,what will be the average flow time?

The following questions refer to the table data for jobs awaiting processing at a single work station (jobs are shown in order of arrival): What is the average flow time for the shortest processing time (SPT)priority rule? Average job lateness? Average WIP at the centre?

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 that will minimize make-span,where in the schedule sequence should the job W be placed?

The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received: If he uses the shortest processing time first (SPT) priority rule to schedule these jobs,what will be the average job lateness?

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

The table below contains information about five jobs waiting to be processed at work station number three. Using the CR rule,the sequence of jobs would be:

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

All priority or dispatching rules involve complex computations intended to establish an optimal processing sequence for production facilities.

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: If these jobs were scheduled in the sequence shown,what would be the idle time at machine B?

The output of the system is limited by the output of the bottleneck operation(s).

Shift scheduling for services does not involve:

The inability to store services makes staff scheduling for services more complex than for manufacturing companies.

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?

A schedule/control Gantt chart can be used to monitor job progress.

Determine the minimum number of workers needed,and a schedule for the following staffing requirements,giving workers two consecutive days off per cycle. 11eab92b_c47c_6436_99e6_a767f5b4975d

Which of the following is not a common criteria when using the Assignment model?

What is the optimum job sequence for the jobs listed below,using Johnson's Rule? 11eab92b_c479_cbf4_99e6_4fc80f07f601

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: What is the idle time at machine B for the optimum schedule?