Question 1

The three components that can lead to competitive advantage through effective scheduling are

Accepted Answer

A)  quality, dispatching, and MRP 
B)  ABC analysis, MRP, and loading 
C)  the item master file, the routing file, and the work-center master file 
D)  lower costs, faster delivery, and dependable delivery 
E)  Gantt charts, Johnson's rule and the Pareto principle 
A)  quality, dispatching, and MRP 
B)  ABC analysis, MRP, and loading 
C)  the item master file, the routing file, and the work-center master file 
D)  lower costs, faster delivery, and dependable delivery 
E)  Gantt charts, Johnson's rule and the Pareto principle

Question 2

Because of the significance of labor in the scheduling of services, behavioral and social issues, wage and hour law, and union contracts all complicate the scheduling process.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following dispatching rules is typically the best technique for taking first those jobs with the most urgent needs?

Accepted Answer

A)  shortest processing time 
B)  critical ratio 
C)  earliest due date 
D)  longest processing time 
E)  none of the above 
A)  shortest processing time 
B)  critical ratio 
C)  earliest due date 
D)  longest processing time 
E)  none of the above

Question 4

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

Accepted Answer

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

Question 5

Johnson's rule sequences a set of jobs through two different machines or work centers in the same order.

Accepted Answer

A) True 
 B)False

Question 6

__________ is an input-output control system that uses cards to manage the amount of work in a work center.

Accepted Answer

ConWIP or

Question 7

In services, the scheduling emphasis is usually on staffing levels, not materials.

Accepted Answer

A) True 
 B)False

Question 8

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 9

The assignment method provides an optimum, one-to-one assignment of jobs to resources.

Accepted Answer

A) True 
 B)False

Question 10

In forward scheduling, jobs are scheduled as late as possible within the time allowed by the customer due dates.

Accepted Answer

A) True 
 B)False

Question 11

What is the primary disadvantage of the shortest processing time dispatch rule?
 Is this a problem if there can be no new jobs arriving after the sequence is set?

Accepted Answer

As new jobs arrive, new short-duration j

Question 12

Short-term scheduling is important to efficiency and to cost reduction, but its impact is not of strategic importance.

Accepted Answer

A) True 
 B)False

Question 13

Given the following chart of jobs assigned with Johnson's rule suppose that all the jobs (A, B, C, etc) could be evenly divided into two tasks (such as A1 and A2, B1 and B2, etc). Suppose job B is divided into jobs B1 and B2, each with a body work time of 4.5 hours and a paint time of 2 hours. How much is makespan reduced by this splitting of B?

Accepted Answer

B1 could start on paint at time=34.5 (1/

Question 14

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?
c. Which job is the first to be scheduled?
 Is it scheduled to be the first job or the last?
 Explain.
 $\begin{array}{|c|c|c|}
\hline \text { Job } & \text { Machine 1 } & \text { Machine 2 } \
\hline \text { A } & 10 & 11 \
\hline \text { B } & 8 & 17 \
\hline \text { C } & 14 & 10 \\hline \mathrm{D} & 13 & 7 \
\hline \mathrm{E} & 10 & 8 \
\hline \mathrm{F} & 25 & 9 \
\hline G & 6 & 15 \
\hline
\end{array}$

Accepted Answer

(a,b) The optimal sequence is G-B-A-C-F-

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

The critical ratio sequencing rule prioritizes the jobs based on the importance or value of the customers who have placed the orders.

Accepted Answer

A) True 
 B)False

Question 17

The priority rule that appears fair to customers in service systems is __________.

Accepted Answer

first come

Question 18

Scheduling is rather straightforward in product-focused facilities because

Accepted Answer

A)  kanban automates the scheduling of the assembly line 
B)  demand is reasonably stable, and capacities, set-up times, and run times are generally known 
C)  assembly line balancing assures the highest possible production efficiency 
D)  finite capacity scheduling has made MRP much more realistic 
E)  All of the above are true. 
A)  kanban automates the scheduling of the assembly line 
B)  demand is reasonably stable, and capacities, set-up times, and run times are generally known 
C)  assembly line balancing assures the highest possible production efficiency 
D)  finite capacity scheduling has made MRP much more realistic 
E)  All of the above are true.

Question 19

A work center had planned outputs of 10,15,13, and 20 hours with actual outputs of 12, 14, 13, and 18 hours. The cumulative deviation in output is

Accepted Answer

A)  0 
B)  1 
C)  -1 
D)  58 
E)  unable to determine with given information 
A)  0 
B)  1 
C)  -1 
D)  58 
E)  unable to determine with given information

Question 20

In what ways does the problem of scheduling service systems differ from that of scheduling manufacturing systems?

Accepted Answer

Scheduling services differs from schedul

Exam 18: Short-Term Scheduling

The three components that can lead to competitive advantage through effective scheduling are

Because of the significance of labor in the scheduling of services, behavioral and social issues, wage and hour law, and union contracts all complicate the scheduling process.

Which of the following dispatching rules is typically the best technique for taking first those jobs with the most urgent needs?

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

Johnson's rule sequences a set of jobs through two different machines or work centers in the same order.

__________ is an input-output control system that uses cards to manage the amount of work in a work center.

In services, the scheduling emphasis is usually on staffing levels, not materials.

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

The assignment method provides an optimum, one-to-one assignment of jobs to resources.

In forward scheduling, jobs are scheduled as late as possible within the time allowed by the customer due dates.

What is the primary disadvantage of the shortest processing time dispatch rule? Is this a problem if there can be no new jobs arriving after the sequence is set?

Short-term scheduling is important to efficiency and to cost reduction, but its impact is not of strategic importance.

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

The critical ratio sequencing rule prioritizes the jobs based on the importance or value of the customers who have placed the orders.

The priority rule that appears fair to customers in service systems is __________.

Scheduling is rather straightforward in product-focused facilities because

A work center had planned outputs of 10,15,13, and 20 hours with actual outputs of 12, 14, 13, and 18 hours. The cumulative deviation in output is

In what ways does the problem of scheduling service systems differ from that of scheduling manufacturing systems?

Operations and Productivity

Operations Strategy in a Global Environment

Project Management

Forecasting

Design of Goods and Services

Managing Quality

Statistical Process Control

Process Strategy

Capacity and Constraint Management

Location Strategies

Layout Strategies

Human Resources, Job Design, and Work Measurement

Supply-Chain Management

Outsourcing as a Supply-Chain Strategy

Inventory Management

Aggregate Planning

Material Requirements Planning MRP and ERP

Just-In-Time and Lean Options

Maintenance and Reliability

Decision-Making Tools

Linear Programming

Transportation Models

Waiting-Line Models

Learning Curves

Simulation

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