Question 1

The time to rest and travel between games for baseball umpire crews is an important factor in developing their schedule.

Accepted Answer

A) True 
 B)False  True

Question 2

Scheduling and sequencing methods used in manufacturing are more beneficial in low-contact, than high-contact, service processes.

Accepted Answer

A) True 
 B)False  True

Question 3

The sequencing rule that minimizes the maximum number of jobs that are past due from a given set of jobs is:

Accepted Answer

A)  shortest processing time (SPT). 
B)  earliest due date (ED
D) . 
C)  first come, first served (FCFS). 
D)  least amount of work at the next process queue (LWNQ). 
A)  shortest processing time (SPT). 
B)  earliest due date (ED
D) . 
C)  first come, first served (FCFS). 
D)  least amount of work at the next process queue (LWNQ). B

Question 4

Which one of the following statements about the Balloons Aloha case study on scheduling and sequencing is TRUE?

Accepted Answer

A)  The sequencing rule used did not impact average flow time but it did change tardiness. 
B)  The earliest due date (ED
D)  rule was the best sequencing rule to use for this case situation. 
C)  The shortest processing time (SPT) rule was the best sequencing rule to use for this case situation. 
D)  Johnson's rule was the best sequencing rule to use for this case situation. 
A)  The sequencing rule used did not impact average flow time but it did change tardiness. 
B)  The earliest due date (ED
D)  rule was the best sequencing rule to use for this case situation. 
C)  The shortest processing time (SPT) rule was the best sequencing rule to use for this case situation. 
D)  Johnson's rule was the best sequencing rule to use for this case situation.

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

Like the shortest processing time (SPT) rule, the earliest due date (EDD) rule minimizes the average flow time.

Accepted Answer

A) True 
 B)False

Question 7

Scheduling applies to all aspects of the value chain.

Accepted Answer

A) True 
 B)False

Question 8

A tardiness measure can be either zero (0) or a positive number.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

An airplane repair facility has a contract to repair cargo aircrafts for a regional airline. There are 62 planes in the airline company's fleet of planes. Because of the punishing workload, the planes require a considerable amount of maintenance. The repair facility is trying to determine how to schedule the needed repairs. They want to compare the shortest processing time (SPT) rule and the first come, first served (FCFS) rule. Currently, the following planes need repair and are in the repair facility (data given is in the order of plane arrival, only one plane is worked on at a time, and the shop is open 24 hours a day, 7 days a week). 
$\begin{array}{|c|c|}
\hline \text { Plane } & \text { Estimated repair time } \
\hline \text { A342 } & 4 \text { hours } \
\hline \text { B554 } & 26 \text { hours } \
\hline \text { C222 } & 2 \text { hours } \
\hline \text { D876 } & 16 \text { hours } \
\hline \text { E211 } & 9 \text { hours } \
\hline \text { F887 } & 6 \text { hours } \
\hline
\end{array}$ 
a.In what order should the planes be repaired using the shortest processing time rule (use first letter of plane)?
b.What is the average time (in hours) in the shop using the shortest processing time (SPT) rule?
c.What is the average time (in hours) in the shop using the first come, first served (FCFS) rule?

Accepted Answer

a.Shortest processing time (SPT):
Order

Question 11

Johnson's sequencing rule is used to sequence:

Accepted Answer

A)  several jobs through five work centers. 
B)  several jobs through one work center. 
C)  two jobs through several work centers. 
D)  several jobs through two work centers. 
A)  several jobs through five work centers. 
B)  several jobs through one work center. 
C)  two jobs through several work centers. 
D)  several jobs through two work centers.

Question 12

The table below includes processing times and due dates for five jobs.
 $\begin{array}{|l|l|l|}
\hline & \text { Processing } & \text { Days Due } \
\hline \text { Job } & \text { Time (days) } & \text { From Today } \
\hline \text { A } & 16 & 24 \
\hline \text { B } & 23 & 30 \
\hline \text { C } & 22 & 40 \
\hline \text { D } & 8 & 28 \
\hline \text { E } & 10 & 18 \
\hline
\end{array}$
-Using the earliest due date (EDD) rule, the average flow time for the five jobs is _____.

Accepted Answer

A)  more than 10 but less than or equal to 20 days 
B)  more than 20 but less than or equal to 30 days 
C)  more than 30 but less than or equal to 40 days 
D)  more than 40 days 
A)  more than 10 but less than or equal to 20 days 
B)  more than 20 but less than or equal to 30 days 
C)  more than 30 but less than or equal to 40 days 
D)  more than 40 days

Question 13

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

Accepted Answer

A)  flow time 
B)  lateness 
C)  makespan 
D)  tardiness 
A)  flow time 
B)  lateness 
C)  makespan 
D)  tardiness

Question 14

UPS, the world's largest package delivery company, is highly dependent on scheduling but not sequencing.

Accepted Answer

A) True 
 B)False

Question 15

Tardiness measures the amount of time by which the completion time exceeds the due date.

Accepted Answer

A) True 
 B)False

Question 16

Describe the algorithm that defines Johnson's sequencing rule for the two-resource sequencing problem.

Accepted Answer

The answer of Describe the algorithm that defines Johnson's sequencing...

Question 17

The table below includes processing times and due dates for five jobs.
 $\begin{array}{|l|l|l|}
\hline & \text { Processing } & \text { Days Due } \
\hline \text { Job } & \text { Time (days) } & \text { From Today } \
\hline \text { A } & 16 & 24 \
\hline \text { B } & 23 & 30 \
\hline \text { C } & 22 & 40 \
\hline \text { D } & 8 & 28 \
\hline \text { E } & 10 & 18 \
\hline
\end{array}$
-Using the earliest due date (EDD) rule, the average lateness for the five jobs is _____.

Accepted Answer

A)  less than or equal to 10 days 
B)  more than 10 but less than or equal to 20 days 
C)  more than 20 but less than or equal to 30 days 
D)  more than 30 but less than or equal to 40 days 
A)  less than or equal to 10 days 
B)  more than 10 but less than or equal to 20 days 
C)  more than 20 but less than or equal to 30 days 
D)  more than 30 but less than or equal to 40 days

Question 18

Which of the following is an example of a situation for which a Gantt chart would be appropriate?

Accepted Answer

A)  Developing a factory layout 
B)  Tracking inventory levels over time 
C)  Monitoring job schedules 
D)  Forecasting personnel requirements in a two-shift operation 
A)  Developing a factory layout 
B)  Tracking inventory levels over time 
C)  Monitoring job schedules 
D)  Forecasting personnel requirements in a two-shift operation

Question 19

Scheduling refers to determining the order in which jobs or tasks are processed.

Accepted Answer

A) True 
 B)False

Question 20

Scheduling refers to specifying:

Accepted Answer

A)  the sequence in which jobs must be completed. 
B)  the due date for each job. 
C)  the start and completion times of jobs. 
D)  the makespan of each job. 
A)  the sequence in which jobs must be completed. 
B)  the due date for each job. 
C)  the start and completion times of jobs. 
D)  the makespan of each job.

Exam 14: Operations Scheduling and Sequencing

The time to rest and travel between games for baseball umpire crews is an important factor in developing their schedule.

Scheduling and sequencing methods used in manufacturing are more beneficial in low-contact, than high-contact, service processes.

The sequencing rule that minimizes the maximum number of jobs that are past due from a given set of jobs is:

Which one of the following statements about the Balloons Aloha case study on scheduling and sequencing is TRUE?

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

Like the shortest processing time (SPT) rule, the earliest due date (EDD) rule minimizes the average flow time.

Scheduling applies to all aspects of the value chain.

A tardiness measure can be either zero (0) or a positive number.

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

Johnson's sequencing rule is used to sequence:

The table below includes processing times and due dates for five jobs. Processing Days Due Job Time (days) From Today A 16 24 B 23 30 C 22 40 D 8 28 E 10 18 -Using the earliest due date (EDD) rule, the average flow time for the five jobs is _____.

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

UPS, the world's largest package delivery company, is highly dependent on scheduling but not sequencing.

Tardiness measures the amount of time by which the completion time exceeds the due date.

Describe the algorithm that defines Johnson's sequencing rule for the two-resource sequencing problem.

The table below includes processing times and due dates for five jobs. Processing Days Due Job Time (days) From Today A 16 24 B 23 30 C 22 40 D 8 28 E 10 18 -Using the earliest due date (EDD) rule, the average lateness for the five jobs is _____.

Which of the following is an example of a situation for which a Gantt chart would be appropriate?

Scheduling refers to determining the order in which jobs or tasks are processed.

Scheduling refers to specifying:

Goods, Services, and Operations Management

Value Chains

Measuring Performance in Operations

Operations Strategy

Technology and Operations Management

Goods and Service Design

Process Selection, Design, and Analysis

Facility and Work Designs

Supply Chain Design

Capacity Management

Forecasting and Demand Planning

Managing Inventories

Resource Management

Quality Management

Appendix: Quality Management

Quality Control and Spc

Appendix: Queuing Analysis

Appendix: Modeling Using Linear Programming

Lean Operating Systems

Appendix: Simulation

Project Management

Appendix: Decision Analysis

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