Question 1

The time required for a job to move through the system is referred to as flow time.

Accepted Answer

A) True 
 B)False  True

Question 2

If the following jobs are sequenced according to the SPT rule then the mean tardiness (in days)for all jobs is (assume zero for today's date)

Accepted Answer

A) 16 days. 
B) 13 days. 
C) 5.2 days. 
D) 3.2 days 
A) 16 days. 
B) 13 days. 
C) 5.2 days. 
D) 3.2 days C

Question 3

If the following jobs are sequenced according to the DDATE rule then the maximum job tardiness (in days)is (assume zero for today's date)

Accepted Answer

A) 12 days. 
B) 15 days. 
C) 16 days. 
D) 27 days. 
A) 12 days. 
B) 15 days. 
C) 16 days. 
D) 27 days. C

Question 4

The following set of jobs must be processed serially through a two-step system.The times at each process are in hours.If Johnson's Rule is used to sequence the jobs then Job C would start processing on operation 2 at

Accepted Answer

A) hour 13. 
B) hour 26. 
C) hour 47. 
D) hour 53 
A) hour 13. 
B) hour 26. 
C) hour 47. 
D) hour 53

Question 5

The process of prioritizing jobs that have been assigned to a resource is called sequencing.

Accepted Answer

A) True 
 B)False

Question 6

Managers typically use multiple objective when constructing a schedule.

Accepted Answer

A) True 
 B)False

Question 7

If the following jobs are sequenced according to the DDATE rule then job A would be completed on day (assume zero for today's date)

Accepted Answer

A) 8. 
B) 12. 
C) 16. 
D) 22 
A) 8. 
B) 12. 
C) 16. 
D) 22

Question 8

If the following jobs are sequenced according to the DDATE rule then the mean completion time (in days)for all jobs is (assume zero for today's date)

Accepted Answer

A) 16.4 days. 
B) 22.6 days. 
C) 28.7 days. 
D) 33.0 days 
A) 16.4 days. 
B) 22.6 days. 
C) 28.7 days. 
D) 33.0 days

Question 9

If the following jobs are sequenced according to the FCFS rule then the total number of jobs that would be late is (assume zero for today's date)

Accepted Answer

A) 4. 
B) 3. 
C) 2. 
D) 1. 
A) 4. 
B) 3. 
C) 2. 
D) 1.

Question 10

If the following jobs are sequenced according to the SPT rule then the total number of jobs that would be late is (assume zero for today's date)

Accepted Answer

A) 0 jobs. 
B) 1 job. 
C) 2 jobs. 
D) 3 jobs. 
A) 0 jobs. 
B) 1 job. 
C) 2 jobs. 
D) 3 jobs.

Question 11

The scheduling rule that minimizes the makespan time for a set of jobs that must be processed through a two-step system where every job follows the same sequence through the two processes is

Accepted Answer

A) the shortest processing time (SPT). 
B) Johnson's Rule. 
C) the assignment method. 
D) the minimal slack rule. 
A) the shortest processing time (SPT). 
B) Johnson's Rule. 
C) the assignment method. 
D) the minimal slack rule.

Question 12

The following set of jobs must be processed serially through a two-step system.The times at each process are in hours.If Johnson's Rule is used to sequence the jobs then Job A would complete processing on operation 2 at

Accepted Answer

A) hour 21. 
B) hour 35. 
C) hour 38. 
D) hour 47. 
A) hour 21. 
B) hour 35. 
C) hour 38. 
D) hour 47.

Question 13

The theory of constraints (TOC)approach to scheduling concentrates on scheduling the bottleneck resources.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not typically considered an objective of scheduling?

Accepted Answer

A) minimizing job lateness 
B) maximizing time in the system 
C) minimizing overtime 
D) maximizing machine utilization 
A) minimizing job lateness 
B) maximizing time in the system 
C) minimizing overtime 
D) maximizing machine utilization

Question 15

A ________ chart is used to show both planned and completed activities against a time scale.

Accepted Answer

A) Gantt 
B) Dispatch 
C) Sequencing 
D) None of the above. 
A) Gantt 
B) Dispatch 
C) Sequencing 
D) None of the above.

Question 16

Four products (1,2,3,and 4)must be processed on one of four machines (A,B,C,and D).The times required in minutes for each product on each machine are shown below.
 
If management wishes to assign products to machines so that the total time to complete all the products is minimized,then Product 1 is assigned to

Accepted Answer

A) machine A 
B) machine B 
C) machine C 
D) machine D 
A) machine A 
B) machine B 
C) machine C 
D) machine D

Question 17

Minimizing overtime is one of several objectives that could be considered when constructing a schedule.

Accepted Answer

A) True 
 B)False

Question 18

If the following jobs are sequenced according to the FCFS rule then the mean tardiness (in days)for all jobs would be (assume zero for today's date)

Accepted Answer

A) 5 days. 
B) 8.33 days. 
C) 10.6 days. 
D) 25 days 
A) 5 days. 
B) 8.33 days. 
C) 10.6 days. 
D) 25 days

Question 19

The dispatch list contains the order in which work is assigned to a productive resource.

Accepted Answer

A) True 
 B)False

Question 20

Tardiness is defined as the difference between a job's flow time and makespan.

Accepted Answer

A) True 
 B)False

Exam 17: Scheduling

The time required for a job to move through the system is referred to as flow time.

If the following jobs are sequenced according to the SPT rule then the mean tardiness (in days)for all jobs is (assume zero for today's date)

If the following jobs are sequenced according to the DDATE rule then the maximum job tardiness (in days)is (assume zero for today's date)

The following set of jobs must be processed serially through a two-step system.The times at each process are in hours.If Johnson's Rule is used to sequence the jobs then Job C would start processing on operation 2 at

The process of prioritizing jobs that have been assigned to a resource is called sequencing.

Managers typically use multiple objective when constructing a schedule.

If the following jobs are sequenced according to the DDATE rule then job A would be completed on day (assume zero for today's date)

If the following jobs are sequenced according to the DDATE rule then the mean completion time (in days)for all jobs is (assume zero for today's date)

If the following jobs are sequenced according to the FCFS rule then the total number of jobs that would be late is (assume zero for today's date)

If the following jobs are sequenced according to the SPT rule then the total number of jobs that would be late is (assume zero for today's date)

The scheduling rule that minimizes the makespan time for a set of jobs that must be processed through a two-step system where every job follows the same sequence through the two processes is

The following set of jobs must be processed serially through a two-step system.The times at each process are in hours.If Johnson's Rule is used to sequence the jobs then Job A would complete processing on operation 2 at

The theory of constraints (TOC)approach to scheduling concentrates on scheduling the bottleneck resources.

Which of the following is not typically considered an objective of scheduling?

A ________ chart is used to show both planned and completed activities against a time scale.

Minimizing overtime is one of several objectives that could be considered when constructing a schedule.

If the following jobs are sequenced according to the FCFS rule then the mean tardiness (in days)for all jobs would be (assume zero for today's date)

The dispatch list contains the order in which work is assigned to a productive resource.

Tardiness is defined as the difference between a job's flow time and makespan.

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