Question 1

To facilitate utilization of bottleneck operations, in theory of constraints scheduling ________ can be split into __________ to reduce waiting times.

Accepted Answer

A)  bottleneck lots; nonbottleneck lots 
B)  transfer batches; process lots 
C)  sized lots; constrained lots 
D)  process batches; transfer batches 
E)  buffer lots; transfer lots 
A)  bottleneck lots; nonbottleneck lots 
B)  transfer batches; process lots 
C)  sized lots; constrained lots 
D)  process batches; transfer batches 
E)  buffer lots; transfer lots

Question 2

A Gantt chart is a basic scheduling tool that is most useful in low-volume systems.

Accepted Answer

A) True 
 B)False

Question 3

Scheduling in service systems often takes the form of:
(I) appointment systems.
(II) reservation systems.
(III) makespan systems.

Accepted Answer

A)  I only 
B)  II only 
C)  I and II only 
D)  III only 
E)  I, II, and III 
A)  I only 
B)  II only 
C)  I and II only 
D)  III only 
E)  I, II, and III

Question 4

Job X, which has a duration of four days, is due by the close of business on Friday, December 23. Without looking at the work already scheduled on X's required resource, the scheduler schedules X to be begun on the morning of Tuesday, December 20. This is an example of:

Accepted Answer

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

Question 5

The owner/operator of the local franchise of Handyman, Inc., has four jobs to do today, shown in the order they were received: $$\begin{array} { c c c } 
\text { Job } & \begin{array} { c } 
\text { Processing Time } \
\text { (hrs) }
\end{array} & \begin{array} { c } 
\text { Due } \
\text { (hrs from now) }
\end{array} \
\text { W } & 4 & 4 \
\mathrm { X } & 3 & 5 \
\mathrm { Y } & 2 & 2 \
\mathrm { Z } & 1 & 1
\end{array}$$
If he uses the shortest processing time first priority rule to schedule these jobs, what will be the average number of jobs in his shop today?

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  4 
A)  0 
B)  1 
C)  2 
D)  3 
E)  4

Question 6

Which of the following is the last step in the capacity/scheduling chain?

Accepted Answer

A)  product planning 
B)  process planning 
C)  capacity planning 
D)  aggregate planning 
E)  scheduling 
A)  product planning 
B)  process planning 
C)  capacity planning 
D)  aggregate planning 
E)  scheduling

Question 7

Scheduling in service systems may involve scheduling:
(I) the workforce.
(II) the equipment.
(III) customers.

Accepted Answer

A)  II only 
B)  I and II only 
C)  II and III only 
D)  I and III only 
E)  I, II, and III 
A)  II only 
B)  I and II only 
C)  II and III only 
D)  I and III only 
E)  I, II, and III

Question 8

The owner/operator of the local franchise of Handyman, Inc., has four jobs to do today, shown in the order they were received: $$\begin{array} { c c c } 
\hline \text { Job } & \begin{array} { c } 
\text { Processing Time } \
\text { (hrs) }
\end{array} & \begin{array} { c } 
\text { Due } \
\text { (hrs from now) }
\end{array} \
\text { W } & 4 & 4 \
\text { X } & 3 & 5 \
\text { Y } & 2 & 2 \
\text { Z } & 1 & 1
\end{array}$$
If he uses the earliest due date first priority rule to schedule these jobs, what will be the average job tardiness?

Accepted Answer

A)  0 hours 
B)  1.5 hours 
C)  1.75 hours 
D)  2 hours 
E)  2.25 hours 
A)  0 hours 
B)  1.5 hours 
C)  1.75 hours 
D)  2 hours 
E)  2.25 hours

Question 9

Splitting a large lot after one operation beyond a bottleneck operation would reduce the overall waiting time of the bottleneck operation.

Accepted Answer

A) True 
 B)False

Question 10

The output of the system cannot exceed the output of the bottleneck operation(s).

Accepted Answer

A) True 
 B)False

Question 11

Bottlenecks in service systems may shift with the passage of time, so that different operations become bottleneck operations at different times.

Accepted Answer

A) True 
 B)False

Question 12

In the decision-making hierarchy, scheduling decisions are the final step in the transformation process before actual output occurs.

Accepted Answer

A) True 
 B)False

Question 13

The priority rule which will sequence jobs in the order they are received is:

Accepted Answer

A)  EDD. 
B)  LIFO. 
C)  SPT. 
D)  CR. 
E)  FCFS. 
A)  EDD. 
B)  LIFO. 
C)  SPT. 
D)  CR. 
E)  FCFS.

Question 14

For the jobs listed below, which processing sequence would result using Johnson's rule?

Accepted Answer

A)  c-a-d-b 
B)  b-d-a-c 
C)  a-b-c-d 
D)  d-c-b-a 
E)  c-a-b-d 
A)  c-a-d-b 
B)  b-d-a-c 
C)  a-b-c-d 
D)  d-c-b-a 
E)  c-a-b-d

Question 15

Scheduled due dates are the result of:

Accepted Answer

A)  promises to customers. 
B)  MRP processing. 
C)  managerial decisions. 
D)  all of the choices. 
E)  our competitor's promises. 
A)  promises to customers. 
B)  MRP processing. 
C)  managerial decisions. 
D)  all of the choices. 
E)  our competitor's promises.

Question 16

Eva, the owner of Eva's Second Time Around Wedding Dresses, currently has five dresses to be altered, shown in the order in which they arrived:  
If Eva uses the earliest due date first (EDD) priority rule to schedule these jobs, what will be the average job tardiness?

Accepted Answer

A)  2 hours 
B)  2.2 hours 
C)  2.33 hours 
D)  2.4 hours 
E)  3 hours 
A)  2 hours 
B)  2.2 hours 
C)  2.33 hours 
D)  2.4 hours 
E)  3 hours

Question 17

There are four resources and four jobs to be done. Assume there must be one-to-one matching between jobs and resources. The time required for each resource to do each job is as follows: $$\begin{array} { c c c c c } 
& { \text { Job (Hours) } } \
\text { Resource } & \text { A } & \text { B } & \text { C } & \text { D } \
1 & 5 & 8 & 7 & 7 \
2 & 4 & 9 & 5 & 9 \
3 & 6 & 9 & 8 & 7 \
4 & 7 & 6 & 6 & 9
\end{array}$$
For the optimal schedule, what is the total number of hours required to complete these jobs?

Accepted Answer

A)  23 hours 
B)  22 hours 
C)  21 hours 
D)  20 hours 
E)  19 hours 
A)  23 hours 
B)  22 hours 
C)  21 hours 
D)  20 hours 
E)  19 hours

Question 18

The two different approaches to load work centers in job-shop scheduling are:

Accepted Answer

A)  load charts and schedule charts. 
B)  Gantt charts and assignment method. 
C)  infinite loading and finite loading. 
D)  linear programming and makespan. 
E)  infinite charting and finite charting. 
A)  load charts and schedule charts. 
B)  Gantt charts and assignment method. 
C)  infinite loading and finite loading. 
D)  linear programming and makespan. 
E)  infinite charting and finite charting.

Question 19

The elimination of idle time on both bottleneck and non-bottleneck operations must be accomplished to optimize output.

Accepted Answer

A) True 
 B)False

Question 20

Sequencing is concerned with the order in which jobs are done, while loading is concerned with assigning jobs to work centers or workstations.

Accepted Answer

A) True 
 B)False

Exam 22: Scheduling

To facilitate utilization of bottleneck operations, in theory of constraints scheduling ________ can be split into __________ to reduce waiting times.

A Gantt chart is a basic scheduling tool that is most useful in low-volume systems.

Scheduling in service systems often takes the form of: (I) appointment systems. (II) reservation systems. (III) makespan systems.

Job X, which has a duration of four days, is due by the close of business on Friday, December 23. Without looking at the work already scheduled on X's required resource, the scheduler schedules X to be begun on the morning of Tuesday, December 20. This is an example of:

Which of the following is the last step in the capacity/scheduling chain?

Scheduling in service systems may involve scheduling: (I) the workforce. (II) the equipment. (III) customers.

Splitting a large lot after one operation beyond a bottleneck operation would reduce the overall waiting time of the bottleneck operation.

The output of the system cannot exceed the output of the bottleneck operation(s).

Bottlenecks in service systems may shift with the passage of time, so that different operations become bottleneck operations at different times.

In the decision-making hierarchy, scheduling decisions are the final step in the transformation process before actual output occurs.

The priority rule which will sequence jobs in the order they are received is:

For the jobs listed below, which processing sequence would result using Johnson's rule?

Scheduled due dates are the result of:

Eva, the owner of Eva's Second Time Around Wedding Dresses, currently has five dresses to be altered, shown in the order in which they arrived: If Eva uses the earliest due date first (EDD) priority rule to schedule these jobs, what will be the average job tardiness?

The two different approaches to load work centers in job-shop scheduling are:

The elimination of idle time on both bottleneck and non-bottleneck operations must be accomplished to optimize output.

Sequencing is concerned with the order in which jobs are done, while loading is concerned with assigning jobs to work centers or workstations.

Introduction to Operations Management

Competitiveness

Forecasting

Product and Service Design

RELIABILITY – Static

Strategic Capacity Planning for Products and Services

Decision Theory– Static

Process Selection and Facility Layout

Work Design and Measurement

learning curve– Static

Location Planning and Analysis

The Transportation Model– Static

Management of Quality

Quality Control

Acceptance Sampling– Static

Aggregate Planning and Master Scheduling

MRP and ERP

Inventory Management

JIT and Lean Operations

Maintenance– Static

Supply Chain Management

Project Management

Management of Waiting Lines

Linear Programming

Filters

To facilitate utilization of bottleneck operations, in theory of constraints scheduling can be split into __ to reduce waiting times.