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Tiger Island Fabricators, which builds offshore oil platforms, has been experiencing
problems with its profiling machine, a computer-driven device that cuts the ends of pipe
so that it can be welded to another pipe, as shown in the data below.
Each time a machine breaks down, the company loses about $3,000. If the company
implements preventive maintenance, it will be able to reduce the number of breakdowns
to one per month. Preventive maintenance costs would be $500 a month. Is preventive
maintenance a cost-effective option?
At Morgan's Transformer Rebuilding, a set of five jobs is ready for dispatching to a
machine center. The processing times and due dates for the jobs are given in the table
below. Use shortest processing time to sequence the jobs, and calculate the average
completion time, the average job lateness, and the average number of jobs in the
machine center.
What costs are present in waiting line analysis? How do these costs vary with the level
of service?
__________ is an input-output control system that uses cards to manage the amount of
work in a work center.
__________ is the amount of time an individual activity in a network can be delayed
without delaying the entire project.
Why do different organizations have different learning curves?
How does "yield management" impact the aggregate plan?
__________ are based on the premise that people and organizations get better at their
tasks as the tasks are repeated.
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