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Unformatted text preview: CHAPTER 15: SHORT-TERM SCHEDULING TRUE/FALSE 1. Delta uses mathematical short-term scheduling techniques and a high-tech nerve center to manage the rapid rescheduling necessary to cope with weather delays and similar disruptions. True (Global company profile, moderate) 2. Short-term scheduling is important to efficiency and to cost reduction, but its impact is not of strategic importance. False (The strategic importance of short-term scheduling, moderate) 3. The benefits of effective scheduling include lower cost, faster delivery, and dependable delivery. True (The strategic importance of short-term scheduling, moderate) 4. In forward scheduling, jobs are scheduled as late as possible within the time allowed by the customer due dates. False (Scheduling issues, moderate) 5. One criterion for developing effective schedules is minimizing completion time. True (Scheduling issues, easy) 6. Scheduling optimization systems used in retail stores typically track customer traffic in 4-hour time increments. False (Scheduling services, difficult) {AACSB: Use of IT} 7. Process-focused facilities and repetitive facilities generate forward-looking schedules, but process- focused facilities do this with JIT and kanban while repetitive facilities generally use MRP. False (Scheduling issues, moderate) 8. The work center master file contains data such as capacity and efficiency. True (Scheduling process-focused facilities, moderate) 9. The constant work-in-process (ConWIP) card aids input-output control by limiting the amount of work in a work center. True (Loading jobs, easy) 10. A Gantt load chart shows the loading and idle time of several departments, machines, or facilities. True (Loading jobs, moderate) 11. Gantt charts are useful for scheduling jobs, but not for loading them. False (Loading jobs, easy) 12. The assignment method provides an optimum, one-to-one assignment of jobs to resources. True (Loading jobs, easy) 13. Earliest due date is a shop floor dispatching (sequencing) rule that relates the time available to complete a job to the amount of work left to be completed. False (Sequencing jobs, moderate) 14. The critical ratio sequencing rule prioritizes the jobs based on the importance or value of the customers who have placed the orders. False (Sequencing jobs, moderate) 15. Dispatching rules are typically judged by four effectiveness criteria: average completion time, utilization, average number of jobs in the system, and average job lateness. True (Sequencing jobs, moderate) 16. Johnson's rule (and its extensions) sequences a set of jobs through a set of operations where the operations must be performed in a specific order. True (Sequencing jobs, moderate) 17. Finite capacity scheduling allows virtually instantaneous changes by operators, which is the technique's primary advantage over rule-based scheduling....
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