The Poisson probability distribution is used in waiting line management when we are
interested in the number of arrivals to a queue during some fixed time period.
Answer:
In order to develop the random number intervals for a simulation study we need to
know the probability distributions in the situation to be simulated.
Answer:
Blocking in production processes is when activities in a stage must continue because
there in no place to deposit completed items.
Answer:
An effective operations and supply strategy must be integrated with the organization’s
corporate strategy.
Answer:
As lean production methods reduce change-over times and thus enable smaller
economic lot sizes and less work-in-process inventory is the importance of quality
increased or decreased? Why?
Answer:
A quality guru named Philip Crosby defined quality as conformance to requirements.
Answer:
Group technology is a philosophy wherein similar parts are grouped together and the
processes required to make the parts are arranged as a work cell.
Answer:
ISO 9000 certification standards play a minor role in setting quality standards for global
manufacturers but a major role in setting quality standards in the European Union.
Answer:
A project layout is characterized by a relatively low number of production units.
Answer:
You time someone completing a single task the first time at 100 minutes and the second
time they do the task it takes 90 minutes. You should use a 90 percent learning curve to
estimate the length of time this worker will take to complete this task in the future.
Answer:
The widespread adoption of computing technology has led to the virtual abandonment
of simple cut-and-try charting and graphical methods to develop aggregate operations
plans.
Answer:
The critical path in a CPM analysis is found by locating the activities times with zero
slack.
Answer:
In a simulation model time cannot be advanced by variable time increments.
Answer:
Linear regression is not useful for aggregate planning.
Answer:
Capacity planning is the step in the aggregate operations planning process that
immediately follows development of the master production schedule.
Answer:
In a flexible manufacturing system a comprehensive computer control system is used to
run the entire production system.
Answer:
Low rates of capacity utilization in service organizations are never appropriate.
Answer:
Learning curves can be applied to individuals and to organizations.
Answer:
A competency is not core if it is easy for competitors to imitate.
Answer:
The dimension of design quality that concerns the sensory characteristics of the product
is which of the following?
A.Features
B.Serviceability
C.Perceived quality
D.Reputation
E.Aesthetics
Answer:
The operations and supply strategy framework presented in the textbook includes which
of the following enterprise capabilities?
A.Customer Satisfaction
B.Product Leadership
C.Distribution
D.Price
E.Dependability
Answer:
When deciding to add capacity to a factory which of the following need not be
considered?
A.Maintaining system balance
B.The frequency of capacity additions
C.Use of external capacity
D.Immediate product demand
E.Availability of raw materials
Answer:
Which of the following is not a general category for categorizing transformation
processes?
A.Exchange, as in retailing
B.Physical, as in manufacturing
C.Insulational, as in inventory
D.Location, as in transportation
E.Storage, as in warehousing
Answer:
Which of the following is one of the strategic characteristics to consider when deciding
how supplier relationships should be structured on the continuum between vertical
integration (do not outsource) to arm’s length relationships (outsource)?
A.Cost
B.Location
C.Investment
D.Coordination
E.Investment
Answer:
In the transformation process of a hospital, a patient is considered a primary input. A
primary transformation function of the same system is which of the following?
A.Healthy individuals
B.Health care
C.Well-prepared food
D.Storage and redistribution
E.Allocation of beds
Answer:
According to the theory of constraints which of the following is an operational
measurement that can be used to measure the firm’s ability to make money?
A.Net profit
B.Throughput
C.Return on investment
D.Sales
E.Direct labor hours
Answer:
Which of the following is an input to the master production schedule (MPS)?
A.Inventory records file
B.The aggregate plan
C.The bill of materials
D.The exception report
E.Planned order schedules
Answer:
You want to determine the control lines for a “p” chart for quality control purposes. If
the total number of defects from all samples is 560, the number of samples is 70 and the
sample size is 80, which of the following would be the standard deviation used in
developing the control lines?
A.0.9000
B.0.4556
C.0.0335
D.0.0011
E.0.0112
Answer:
Typical robot axes of motion include which of the following?
A.Rectangular coordinate
B.Cartesian coordinate
C.Neck axis
D.Elbow axis
E.Jointed arm
Answer:
Which of the following priority rules used in scheduling the sequence of production is
calculated as the slack time remaining in the schedule divided by the number of
remaining operations, with the smallest value being run first?
A.STR
B.Johnson’s
C.STR/OP
D.LCFS
E.FCFS
Answer:
Which is the most challenging kind of supply chain to manage according to Hau Lee?
A.Agile supply chain
B.Efficient supply chain
C.Risk-hedging supply chain
D.Erratic supply chain
E.Responsive supply chain
Answer:
Which of the following is not a risk of acquiring new operations management
technologies?
A.Technology
B.Operational
C.Organizational
D.Separation
E.Environmental or market
Answer:
The purpose of Value Analysis/Value Engineering (VA/VE) is to:
A.Simplify products and processes
B.Improve the value that customers find in existing products
C.Relate the customer’s needs to technical specifications
D.Meet budgets and improve the results of financial models
E.To facilitate better cooperation between business functions
Answer:
You have just performed a Single Time Estimate CPM analysis and have found that
more than one path through the project network has zero slack values. What can you
conclude?
A.You have incorrectly performed the analysis
B.You have multiple critical paths
C.Only one path is optimal
D.More than one path is optimal
E.The project will not be completed by the desired time
Answer:
If each activity time is known with certainty in a CPM analysis, which of the following
methodologies can be used to analyze the project?
A.Single Time Estimate
B.Three Activity Time Estimates
C.Expected Activity Time
D.Probability Analysis
E.None of the above
Answer:
Assume there are five jobs (i.e., A, B, C, D and E) that need to be sequenced in a
production schedule. The remaining operating time necessary for completion of job A is
3 days (i.e., job A will take 3 more days to complete), B will take 9 days, C will take 6
days, D will take 5 days and E will take 8 days. Which job should be scheduled last if
using the SOT priority rule for job sequencing?
A.A
B.B
C.C
D.D
E.E
Answer:
At the 10th repetition of job it is timed at 100 minutes. If the learning curve for this job
is 80 percent, what is the estimated time for the 100th repetition of this job?
A.47.65 minutes
B.62.50 minutes
C.80 minutes
D.92.50 minutes
E.100 minutes
Answer:
Which of the following is not an objective of work center scheduling?
A.Meeting due dates
B.Providing time for quality at the source
C.Minimizing setup time or cost
D.Minimizing work-in-process inventory
E.Minimizing lead time
Answer:
There are other related mathematical programming techniques that can be used instead
of linear programming if the problem has a unique characteristic. If the problem
prevents divisibility of products or resources we should use which of the following
methodologies?
A.Goal programming
B.Primary programming
C.Integer programming
D.Unit programming
E.Dynamic programming
Answer:
Machine breakdown and repair in a twelve machine factory having three repair
mechanics would develop which type of queuing system line structure concerning
machine breakdowns?
A.Single channel, single phase
B.Single channel, multiphase
C.Multichannel, single phase
D.Multichannel, multiphase
E.None of the above
Answer:
A time study was made of a job to develop new time standards. A worker was observed
for 30 minutes. During that time, 40 units were produced. The analyst rated the worker
as performing at a 120 percent performance rate. What is the normal time for this task?
A.0.80 minutes
B.0.90 minutes
C.1.00 minutes
D.1.20 minutes
E.1.33 minutes
Answer:
Which of the following forecasting methods uses executive judgment as its primary
component for forecasting?
A.Historical analogy
B.Time series analysis
C.Panel consensus
D.Grass roots
E.Focus forecasting
Answer:
Very few products are moved without at least part of their journey being by which mode
of transportation?
A.Highway
B.Rail
C.Water
D.Pipeline
E.Air
Answer:
Assume that you are offered a new piece of equipment for $10,000. The equipment will
produce 10,000 units per year with a margin of $6.00 per unit. Demand for the product
being produced has been 2,000 units per year. Your current equipment is fully
depreciated and can produce the 2,000 units per year at but at a margin of only $4.00
per unit. Under what conditions should you purchase the new equipment?
Answer:
If SAP users wanted to build their own Internet applications on top of those provided by
SAP they could use a product known as what?
Answer:
Formulate and solve the following linear program. A firm wants to determine how
many units of each of two products (products X and Y) they should produce in order to
make the most money. The profit from making a unit of product X is $100 and the
profit from making a unit of product Y is $80. Although the firm can readily sell any
amount of either product, it is limited by its total labor hours and total machine hours
available. The total labor hours per week are 800. Product X takes 4 hours of labor per
unit and Product Y takes 2 hours of labor per unit. The total machine hours available are
750 per week. Product X takes 1 machine hour per unit and Product Y takes 5 machine
hours per unit. Write the constraints and the objective function for this problem, solve
for the best mix of product X and Y and report the maximum value of the objective
function?
Answer:
In what ways can management influence the arrival patterns of waiting lines?
Answer:
In setting up a kanban control system you need to determine the number of kanban card
sets needed. If the expected demand during lead time is 24 per hour, safety stock is 10%
of the demand during lead time, the container size is 5. If the lead time to replenish an
order is 5 hours, what number of kanban card sets is needed?
Answer:
What are the four costs relevant to the aggregate operations plan?
Answer: