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Chapter 12 - Scheduling Operations
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27. Below is the information pertaining to five jobs currently waiting to be processed on the
same machine. Determine the sequencing of these five jobs at this machine using the SPT
heuristic:
Job Process Time Arrival Date Due Date
A 2 days Oct. 12 Oct. 29
B 6 days Oct. 15 Oct. 28
C 5 days Oct. 18 Oct. 30
D 9 days Oct. 1 Oct. 31
E 7 days Oct. 10 Oct. 27
28. The three most important metrics according to the theory of constraints are
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29. The theory of constraints says that
30. Finite capacity scheduling
31. Which of the following is true regarding process throughput at a bottleneck?
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35. Starting with a due date and scheduling a job through work centers so that the job finishes
at each work center just in time for the next center is called
36. A manufacturer of water filtration pumps is most likely to use which of the following?
37. Concerning dispatching rules, which of the following is correct?
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38. Below is the information pertaining to five jobs in process on October 22. Determine the
sequencing of these five jobs at this machine using the critical ratio rule. Assume a seven-day
workweek.
Job Remaining Arrival Date Due Date
Processing Time
A 2 days Oct. 12 Oct. 29
B 6 days Oct. 15 Oct. 28
C 5 days Oct. 18 Oct. 30
D 10 days Oct. 1 Oct. 31
E 8 days Oct. 10 Oct. 27
True/False Questions
39. Finite capacity scheduling can be used to identify the bottleneck in a given process.
Chapter 12 - Scheduling Operations
44. A bottleneck should never be blocked or starved. Non-bottlenecks must function to keep
the bottleneck at full utilization.
45. A bottleneck is the work center that has capacity greater than the demand placed on it.
46. A manufacturing company could increase the output rate of the bottleneck by running
larger batches at the bottleneck (assuming another bottleneck in the plant does not interfere).
47. The greater the workload on a process, the less time jobs spend waiting in queues.
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48. The preemptive rule in a manufacturing setting is based on remaining time until the due
date and the remaining processing time.
Essay Questions
49. What are the steps that could be taken at a bottleneck resource to increase its capacity?
LO: 12.4
Topic: Theory of Constraints
Difficulty: 2 Moderate
AACSB: Reflective thinking
