Operations Management - Chapter 16 - Help TestQuestions1. "Flow-shop scheduling" is used in high volume systems.True FalseTRUEFlows shops are high volume operations.
Chapter 16 T/F
Flow-shop scheduling" is used in high volume systems.
TRUE
Line balancing is a major factor in the design and scheduling of low volume systems because of batch processing.
FALSE
Scheduling in intermediate-volume systems has three basic issues: run size, timing, and sequence.
TRUE
When operations are often bottlenecked, additional planned idle time will improve the throughput in those areas.
FALSE
When orders exceed our capacity, priority rules are used to select which orders will be accepted.
FALSE
The term loading, as used in scheduling, refers to choosing the order in which jobs will be processed in low-volume systems.
FALSE
Loading is the determination of which work centers should perform which jobs.
TRUE
8. A Gantt chart is a basic scheduling tool but works best for high-volume systems.
FALSE
9. A Gantt chart is a basic scheduling tool that is most useful in low-volume systems.
TRUE
10. A schedule chart depicts the loading and idle times for a group of machines or departments.
FALSE
11. The output of the system cannot exceed the output of the bottleneck operation(s).
TRUE
12. The elimination of idle time on both bottleneck and non-bottleneck operations must be accomplished to optimize output.
FALSE
13. As long as the bottleneck operations are used effectively idle time in non-bottleneck operations will not affect the overall productivity of the system.
TRUE
14. The quantity sent to a bottleneck operation could be split into two or more process batches to better utilize a bottleneck resource rather than process the entire batch.
FALSE
16. Input/output (I/O) control refers to monitoring the productivity changes since productivity is determined by the ratio of Output to Input.
FALSE
17. Infinite loading and finite loading are two major approaches used to load work centers.
TRUE
18. A schedule chart can be used to monitor job progress.
TRUE
19. The assignment model seeks an optimum matching of tasks and resources.
TRUE
20. Sequencing is concerned with the order in which jobs are done, while loading is concerned with assigning jobs to work centers or workstations.
TRUE
21. Priority rules are widely used to sequence jobs in high-volume systems.
FALSE
22. The assignment method is limited to a maximum of two jobs per resource.
FALSE
23. Priority rules generally assume that job setup cost is independent of processing sequence of jobs.
TRUE
24. In a single work center, makespan improvement can be accomplished by selecting the optimal sequencing rule.
FALSE
25. Priority rules are used in low-volume systems to identify an optimal processing sequence.
FALSE
26. The SPT priority rule always results in the lowest average completion time.
TRUE
27. Bottlenecks may shift with the passage of time, so that different operations become bottleneck operations at different times.
TRUE
28. If optimal sequencing through three work centers is desired, Johnson's Rule II is used rather than Johnson's Rule.
FALSE
29. In the decision-making hierarchy, scheduling decisions are the final step in the transformation process before actual output occurs.
TRUE
31. The theory of constraints has a goal of maximizing flow through the entire system.
TRUE
32. A major disadvantage of the SPT rule is that it tends to make very short jobs wait for a long time while longer, more important jobs are processed.
FALSE
33. The SPT rule minimizes idle time for subsequent operations.
TRUE
34. Johnson's rule is a technique used to sequence jobs through a two-step work sequence
TRUE
35. A basic difference between scheduling in service systems and scheduling in manufacturing systems is the random nature of requests in manufacturing systems as opposed to more uniform requests in service systems.
FALSE
36. Batch process helps maximize worker efficiency.
TRUE
37. Because scheduling is a matter of detailed execution, it has little impact on the operations strategy of an organization.
FALSE |