Question 1

________ are planning charts used to schedule resources and allocate time.

Accepted Answer

The answer of ________ are planning charts used to schedule...

Question 2

A work center had actual input of 280 hours and actual output of 270 hours.What is the change in backlog?

Accepted Answer

A) 10 
B) -10 
C) 0 
D) 1.037 
E) Unable to determine with the given information 
A) 10 
B) -10 
C) 0 
D) 1.037 
E) Unable to determine with the given information

Question 3

Which of the following is an aid used to monitor jobs in progress?

Accepted Answer

A) a Gantt load chart 
B) the assignment method 
C) a Gantt schedule chart 
D) Johnson's rule 
E) a Gantt progress chart 
A) a Gantt load chart 
B) the assignment method 
C) a Gantt schedule chart 
D) Johnson's rule 
E) a Gantt progress chart

Question 4

Which critical ratio value implies that a job is already late?

Accepted Answer

A) more than 100 
B) 1 
C) less than 1 
D) 10 
E) 3.4 
A) more than 100 
B) 1 
C) less than 1 
D) 10 
E) 3.4

Question 5

________ cards are used to control the amount of work in a work center,aiding input-output control.

Accepted Answer

ConWIP or

Question 6

Which of the following dispatching rules tends to minimize job flow time?

Accepted Answer

A) FCFS: first come,first served 
B) SPT: shortest processing time 
C) EDD: earliest due date 
D) LPT: longest processing time 
E) FCLS: first come,last served 
A) FCFS: first come,first served 
B) SPT: shortest processing time 
C) EDD: earliest due date 
D) LPT: longest processing time 
E) FCLS: first come,last served

Question 7

________ determine the sequence of jobs in process-oriented facilities.

Accepted Answer

The answer of ________ determine the sequence of jobs in...

Question 8

Use Johnson's rule to determine the optimal sequencing for the five jobs to be processed on two machines in a fixed order (Machine 1 before Machine 2).The processing times in hours are given in the table below.
a.What is the optimal sequence?
b.What is the total flow time for this sequence?

Accepted Answer

(a,b)The optimal sequence is G

Question 9

The correct sequence from longest to smallest duration scheduling is:

Accepted Answer

A) capacity planning,aggregate planning,master schedule,short-term scheduling. 
B) aggregate planning,capacity planning,master schedule,short-term scheduling. 
C) master schedule,capacity planning,aggregate planning,short-term scheduling. 
D) master schedule,aggregate planning,capacity planning,short-term scheduling. 
E) capacity planning,master schedule,aggregate planning,short-term scheduling. 
A) capacity planning,aggregate planning,master schedule,short-term scheduling. 
B) aggregate planning,capacity planning,master schedule,short-term scheduling. 
C) master schedule,capacity planning,aggregate planning,short-term scheduling. 
D) master schedule,aggregate planning,capacity planning,short-term scheduling. 
E) capacity planning,master schedule,aggregate planning,short-term scheduling.

Question 10

At Morgan's Transformer Rebuilding,a set of five jobs is ready for dispatching to a machine center.The processing times and due dates for the jobs are given in the table below.Use shortest processing time to sequence the jobs,and calculate the average completion time,the average job lateness,and the average number of jobs in the machine center.

Accepted Answer

The optimal sequence is C-E-B-A-D.The av

Question 11

The president of a consulting firm wants to minimize the total number of hours it will take to complete four projects for a new client.Accordingly,she has estimated the time it should take for each of her top consultants-Charlie,Gerald,Johnny,and Rick-to complete any of the four projects,as follows:
   (a)What is the total number of hours required by the following arbitrary assignment?
Charlie→B;Gerald→A;Johnny→D;Rick→C
(b)What is the optimal assignment of consultants to projects? (Use the assignment method. )
(c)For the optimal schedule,what is the total number of hours it will take these consultants to complete these projects?

Accepted Answer

(a)16 + 13 + 15 + 12

Question 12

A manufacturer has the following jobs waiting on a single work center.The firm has not decided which dispatching rule to apply in order to prioritize the jobs and fix them into the schedule.Processing time in 15-minute time blocks and due date for each job are in the table below.
   a.Complete the following table.Show your supporting calculations below.
b.Which dispatching rule has the best score for flow time? for work in process (jobs in the system)? for lateness?
c.Is there ANY sequence that can avoid all lateness? Explain or provide an example.

Accepted Answer

(a)The results appear in the table below

Question 13

Delta uses mathematical short-term scheduling techniques and a high-tech nerve center to manage the rapid rescheduling necessary to cope with weather delays and similar disruptions.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following dispatching rules ordinarily gives the best results when the criterion is lowest 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 15

Five jobs are waiting to be processed.Their processing times and due dates are given below.Using the earliest due date dispatching rule,in which order should the jobs be processed?

Accepted Answer

A) C,E,A,D,B 
B) A,B,C,D,E 
C) B,D,A,E,C 
D) C,B,A,E,D 
E) B,D,A,C,E 
A) C,E,A,D,B 
B) A,B,C,D,E 
C) B,D,A,E,C 
D) C,B,A,E,D 
E) B,D,A,C,E

Question 16

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

Accepted Answer

The Gantt load chart indicates a planned

Question 17

The ________ is a special class of linear programming models that involves assigning tasks or jobs to resources.

Accepted Answer

The answer of The ________ is a special class of...

Question 18

Gantt charts are useful for scheduling jobs,but not for loading them.

Accepted Answer

A) True 
 B)False

Question 19

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 20

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

Accepted Answer

Process-focused: (1)Scheduling to custom

Exam 15: Scheduling for the Short-Term

________ are planning charts used to schedule resources and allocate time.

A work center had actual input of 280 hours and actual output of 270 hours.What is the change in backlog?

Which of the following is an aid used to monitor jobs in progress?

Which critical ratio value implies that a job is already late?

________ cards are used to control the amount of work in a work center,aiding input-output control.

Which of the following dispatching rules tends to minimize job flow time?

________ determine the sequence of jobs in process-oriented facilities.

Use Johnson's rule to determine the optimal sequencing for the five jobs to be processed on two machines in a fixed order (Machine 1 before Machine 2).The processing times in hours are given in the table below. a.What is the optimal sequence? b.What is the total flow time for this sequence?

The correct sequence from longest to smallest duration scheduling is:

Delta uses mathematical short-term scheduling techniques and a high-tech nerve center to manage the rapid rescheduling necessary to cope with weather delays and similar disruptions.

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

Five jobs are waiting to be processed.Their processing times and due dates are given below.Using the earliest due date dispatching rule,in which order should the jobs be processed?

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

The ________ is a special class of linear programming models that involves assigning tasks or jobs to resources.

Gantt charts are useful for scheduling jobs,but not for loading them.

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

Operations and Productivity

The Global Environment and Operations Strategy

Managing Projects

Forecasting Demand

Product Design

Quality Management and International Standards

Process Design

Location Decisions

Layout Decisions

Job Design and Work Measurement

Supply Chain Management

Managing Inventory

Aggregate Scheduling

Material Requirements Planning Mrpand Erp

Jit,lean Operations,and the Toyota Production System

Maintenance and Reliability Decisions

Sustainability

Statistical Process Control

Capacity Planning

Supply Chain Modeling

Decision Modeling

Linear Programming Models

Transportation Modeling

Queuing Models

Learning Curves

Modeling with Simulation

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