Exam 14: Operations Scheduling and Sequencing

A restaurant needs the following number of wait staff to serve its evening guests. How many employees are needed so that each as two consecutive days off? Construct a work schedule for these employees.

(Essay)

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Question 41

Scheduling refers to specifying

(Multiple Choice)

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Question 42

Considering a two-resource sequencing problem,

(Multiple Choice)

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Question 43

Telling an umpire crew to work baseball games in Chicago, then Milwaukee, and then Cleveland is an example of a sequence.

(True/False)

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Question 44

Appointments systems often overbook to maximize revenue.

(True/False)

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Question 45

Appointments can be viewed as a reservation of service time and capacity.

(True/False)

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Question 46

The table below includes processing times and due dates for five jobs. a.Use the Shortest Processing Time Rule (SPT) to determine the average flow time. b.Use the Earliest Due Date Rule (EDD) to determine the average lateness.

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Question 47

A company is faced with seven tasks that have to be processed through two work centers, work center I and then center II.Assume work center I works continuously and that they are using Johnson's rule.Work centers need not change over to new jobs at the same time.Data appears below in hours: a.What is the sequence of tasks? b.What is the time in hours to complete all the tasks in both work centers? c.What is the total idle time in hours for work center I? d.What is the total idle time in hours for work center II?

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Question 48

Since all jobs eventually get done, job sequencing has no effect on resource utilization.

(True/False)

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Question 49

Flow time is the amount of time a job spends in a shop or factory.

(True/False)

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Question 50

Explain the three categories of criteria used to evaluate job sequencing performance.For each category, provide two example measures.

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Question 51

What four (4) decisions are considered in designing an appointment system?

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Question 52

Rescheduling rarely occurs unless customers change their requested due dates.

(True/False)

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Question 53

Gantt charts can show what jobs are ahead of schedule, behind schedule, and on schedule.

(True/False)

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Question 54

A print shop has five large commercial printing jobs to finish.They are trying to decide whether to use the shortest processing time (SPT) or the first-come first-served (FCFS) sequencing rule.Data on estimated processing time (in hours) and time to promised completion (in hours) is as follows (jobs shown in order of arrival): a.What is the average flow time in hours using the FCFS rule? b.What is the average job lateness in hours using the FCFS rule? c.What is the average flow time in hours using the SPT rule? d.What is the average job lateness in hours using the SPT rule?

(Essay)

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Question 55

The EDD rule minimizes the maximum of jobs past due but doesn't perform well on average flow-time, WIP inventory or resource utilization.

(True/False)

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Question 56

Which of the following is NOT a criterion for evaluating job sequencing rules?

(Multiple Choice)

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Question 57

The numerical difference between the completion time and the due date is called

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Question 58

Explain why any sequence chosen in the single-machine scheduling problem will not change makespan time.

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Question 59

The SPT sequencing rule will maximize the average flow time.

(True/False)

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Question 60

Showing 41 - 60 of 66

Exam 14: Operations Scheduling and Sequencing

A restaurant needs the following number of wait staff to serve its evening guests. How many employees are needed so that each as two consecutive days off? Construct a work schedule for these employees.

Scheduling refers to specifying

Considering a two-resource sequencing problem,

Telling an umpire crew to work baseball games in Chicago, then Milwaukee, and then Cleveland is an example of a sequence.

Appointments systems often overbook to maximize revenue.

Appointments can be viewed as a reservation of service time and capacity.

The table below includes processing times and due dates for five jobs. a.Use the Shortest Processing Time Rule (SPT) to determine the average flow time. b.Use the Earliest Due Date Rule (EDD) to determine the average lateness.

Since all jobs eventually get done, job sequencing has no effect on resource utilization.

Flow time is the amount of time a job spends in a shop or factory.

Explain the three categories of criteria used to evaluate job sequencing performance.For each category, provide two example measures.

What four (4) decisions are considered in designing an appointment system?

Rescheduling rarely occurs unless customers change their requested due dates.

Gantt charts can show what jobs are ahead of schedule, behind schedule, and on schedule.

The EDD rule minimizes the maximum of jobs past due but doesn't perform well on average flow-time, WIP inventory or resource utilization.

Which of the following is NOT a criterion for evaluating job sequencing rules?

The numerical difference between the completion time and the due date is called

Explain why any sequence chosen in the single-machine scheduling problem will not change makespan time.

The SPT sequencing rule will maximize the average flow time.

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