Question 1

Forward scheduling is the scheduling of:

Accepted Answer

A) the end items or finished products. 
B) jobs as soon as the requirements are known. 
C) the start items or component parts. 
D) the final operation first beginning with the due date. 
E) jobs according to their profit contributions. 
A) the end items or finished products. 
B) jobs as soon as the requirements are known. 
C) the start items or component parts. 
D) the final operation first beginning with the due date. 
E) jobs according to their profit contributions.

Question 2

Which of the following is NOT tracked by scheduling optimization systems used in retail stores?

Accepted Answer

A) cars parked in the parking lot 
B) individual store sales 
C) transactions 
D) units sold 
E) customer traffic 
A) cars parked in the parking lot 
B) individual store sales 
C) transactions 
D) units sold 
E) customer traffic

Question 3

Scheduling optimization systems used in retail stores typically track customer traffic in 4-hour time increments.

Accepted Answer

A) True 
 B)False

Question 4

A recent advance in short-term scheduling that makes use of expert systems and simulation in solving dynamic scheduling problems is:

Accepted Answer

A) forward scheduling. 
B) backward scheduling. 
C) infinite scheduling. 
D) finite capacity scheduling. 
E) progressive scheduling. 
A) forward scheduling. 
B) backward scheduling. 
C) infinite scheduling. 
D) finite capacity scheduling. 
E) progressive scheduling.

Question 5

Which of the following statements regarding scheduling at Alaska Airlines is FALSE?

Accepted Answer

A) Flying into Alaska complicates scheduling. 
B) Schedule changes at one airport have a ripple effect that may have impacts in many others. 
C) Alaska Airlines' high-tech computer and communications system is located in Seattle. 
D) Alaska Airlines' rapid rescheduling uses mathematical scheduling models. 
E) Alaska Airlines' rapid rescheduling promotes air safety and limits traveler inconvenience,but has not resulted in money savings for Alaska Airlines. 
A) Flying into Alaska complicates scheduling. 
B) Schedule changes at one airport have a ripple effect that may have impacts in many others. 
C) Alaska Airlines' high-tech computer and communications system is located in Seattle. 
D) Alaska Airlines' rapid rescheduling uses mathematical scheduling models. 
E) Alaska Airlines' rapid rescheduling promotes air safety and limits traveler inconvenience,but has not resulted in money savings for Alaska Airlines.

Question 6

The operations manager of a body and paint shop has five cars to schedule for repair.He would like to minimize the throughput time (makespan)to complete all work on these cars.Each car requires body work prior to painting.The estimates of the times required to do the body and paint work on each are as follows:
   (a)Use Johnson's rule to sequence these five jobs for minimum total duration.Show your work in
determining the job sequence.
(b)The optimal sequence is ________.
(c)Chart the progress of the five jobs in this optimal sequence.
(d)After how many hours will all jobs be completed?

Accepted Answer

(a), (b)The sequence of jobs i

Question 7

What is finite capacity scheduling (FCS)?

Accepted Answer

FCS is computerized short-term

Question 8

Flow time represents the time:

Accepted Answer

A) an order spends waiting for processing at a work center. 
B) an order spends being processed at a work center. 
C) an order spends moving from one work center to another. 
D) to complete an order,including time spent in processing and in waiting. 
E) none of the above 
A) an order spends waiting for processing at a work center. 
B) an order spends being processed at a work center. 
C) an order spends moving from one work center to another. 
D) to complete an order,including time spent in processing and in waiting. 
E) none of the above

Question 9

Identify some scheduling optimization systems that are used at retail stores.Describe what these systems do.

Accepted Answer

Workbrain,Cybershift,and Krono

Question 10

If an assignment problem consists of 5 workers and 4 projects:

Accepted Answer

A) one worker will not get a project assignment. 
B) one project will be assigned two workers. 
C) the fifth worker will split time among the four projects. 
D) one project will not get a worker assigned. 
E) The problem cannot be solved by assignment method. 
A) one worker will not get a project assignment. 
B) one project will be assigned two workers. 
C) the fifth worker will split time among the four projects. 
D) one project will not get a worker assigned. 
E) The problem cannot be solved by assignment method.

Question 11

What is the priority rule that sequences jobs using the smallest ratio of due date from today to processing time?

Accepted Answer

A) critical ratio 
B) earliest due date 
C) first come,first served 
D) longest processing time 
E) shortest processing time 
A) critical ratio 
B) earliest due date 
C) first come,first served 
D) longest processing time 
E) shortest processing time

Question 12

Dispatching rules are typically judged by four effectiveness criteria: average completion time,utilization,average number of jobs in the system,and average job lateness.

Accepted Answer

A) True 
 B)False

Question 13

Compare short-term scheduling at process-focused,repetitive,and product-focused facilities.

Accepted Answer

Process-focused: (1)Scheduling to custom

Question 14

A practitioner of family medicine begins her day with five patients needing urgent care.She does a very brief assessment of what each patient appears to need and estimates the time required of each.None of the cases is life-threatening,and so she determines to take the five in the order that they arrived at the clinic.The processing-time data for these patients,in the order they arrived,are: Patient A,30 minutes;Patient B,40 minutes;Patient C,10 minutes;Patient D,50 minutes;and Patient E,15 minutes.
(a)If it is now 8:00 a.m. ,at what time will the doctor be finished with all five of these emergencies?
(b)How much time will the five patients have collectively spent waiting?
(c)How much less time would have been spent waiting if the doctor had taken the patients according to shortest processing time?

Accepted Answer

(a)Using first come,first served,all fiv

Question 15

Five jobs are waiting for processing through two work centers.Their processing time (in minutes)at each work center is contained in the table below.Each job requires work center Alpha before work center Beta.According to Johnson's rule,which job should be scheduled first in the sequence?

Accepted Answer

A) R 
B) S 
C) T 
D) U 
E) V 
A) R 
B) S 
C) T 
D) U 
E) V

Question 16

Which of the following dispatching rules ordinarily gives the best results when the criterion is quickest time for completion of the full sequence of jobs?

Accepted Answer

A) shortest processing time (SPT) 
B) critical ratio (CR) 
C) first in,first out (FIFO) 
D) first come,first served (FCFS) 
E) longest processing time (LPT) 
A) shortest processing time (SPT) 
B) critical ratio (CR) 
C) first in,first out (FIFO) 
D) first come,first served (FCFS) 
E) longest processing time (LPT)

Question 17

Explain,in your own words,how backward scheduling and forward scheduling differ.

Accepted Answer

Forward scheduling starts the

Question 18

________ is the assignment of jobs to work or processing centers.

Accepted Answer

The answer of ________ is the assignment of jobs to...

Question 19

What is the difference between a Gantt load chart and a Gantt scheduling chart?

Accepted Answer

The Gantt load chart indicates a planned

Question 20

A Gantt load chart shows the loading and idle time of several departments,machines,or facilities.

Accepted Answer

A) True 
 B)False

Exam 15: Short-Term Scheduling

Forward scheduling is the scheduling of:

Which of the following is NOT tracked by scheduling optimization systems used in retail stores?

Scheduling optimization systems used in retail stores typically track customer traffic in 4-hour time increments.

A recent advance in short-term scheduling that makes use of expert systems and simulation in solving dynamic scheduling problems is:

Which of the following statements regarding scheduling at Alaska Airlines is FALSE?

What is finite capacity scheduling (FCS)?

Flow time represents the time:

Identify some scheduling optimization systems that are used at retail stores.Describe what these systems do.

If an assignment problem consists of 5 workers and 4 projects:

What is the priority rule that sequences jobs using the smallest ratio of due date from today to processing time?

Dispatching rules are typically judged by four effectiveness criteria: average completion time,utilization,average number of jobs in the system,and average job lateness.

Compare short-term scheduling at process-focused,repetitive,and product-focused facilities.

Five jobs are waiting for processing through two work centers.Their processing time (in minutes)at each work center is contained in the table below.Each job requires work center Alpha before work center Beta.According to Johnson's rule,which job should be scheduled first in the sequence?

Which of the following dispatching rules ordinarily gives the best results when the criterion is quickest time for completion of the full sequence of jobs?

Explain,in your own words,how backward scheduling and forward scheduling differ.

________ is the assignment of jobs to work or processing centers.

What is the difference between a Gantt load chart and a Gantt scheduling chart?

A Gantt load chart shows the loading and idle time of several departments,machines,or facilities.

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