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Questions and Answers of
Operations Management
In center of gravity, if all destinations require the same degree of service, should their coordinates be added or averaged?
If factor A is given a weight of 0.2 and factor B a weight of 0.4, what does that imply about factor B when compared to factor A?
Which technique is more subjective, center of gravity or factor rating?
Which alternative is preferable at a point of indifference?
ART Contractors must locate an equipment staging area to serve three construction sites, located at coordinates (0, 2), (0, 4), and (5, 5). Traffic between the staging area and each of the three
ART Contractors must locate an equipment staging area to serve three construction sites, located at coordinates (0, 2), (0, 4), and (5, 5). Traffic between the staging area and each of the three
A manufacturing firm is considering two locations for a plant to produce a new prod- uct. Location A has a fixed cost of \($80,000\) and a variable cost of \($20\) per unit. Loca- tion B has a fixed
A manufacturing firm is considering two locations for a plant to produce a new product. Location A has a fixed cost of \($80,000\) and a variable cost of \($20\) per unit. Location B has a fixed cost
You are reading a magazine article with the title "The Top 100 Undergraduate Busi- ness Programs." The article mentions that the magazine's staff collected data on various undergraduate programs
If location A scored 1127.2 in a factor rating study and location B scored 903.9, which location would be selected as a superior choice?
If a location received a score of 60 for appearance and 40 for access, what would its factor rating score be if each factor were assigned a weight of 1/2?
If a location received a score of 60 for appearance and 40 for access, what would its factor rating score be if appearance were assigned a weight of 1/4 and access a weight of 3/4?
A manufacturing firm is choosing a new location based on five factors. It considers all these factors to be equally important. What weights should it assign each factor in a factor rating analysis?
PowerBright must decide between two locations on which to build a new power station to provide 60 megawatt-hours of electricity a month. Location A would have a variable cost of \($1,000\) per
Best Purchase must select a location for a new store. Best Purchase has identi- fied five factors as important to store location: land cost, road access, population density, average income, and
A manufacturing firm is choosing between two locations based on factors A and B. The first location scored 10 for factor A and 90 for factor B. The second location scored 90 for factor A and 10 for
E-Me, a chain of personal electronics superstores, distributes merchandise to its 300 retail outlets from five regional warehouses. E-Me wants to locate a new central distribution center that would
Garysburg Fire Rescue (GFR) is considering three different locations for a new fire station. Using factor rating, GFR has created the following table:When rating these locations, GFR used a 5-point
Tom, David, Dale, and Murdock are four business students who want to rent a four- bedroom apartment together for the fall semester. They have identified the three factors important to them in
West Calder Fabrication is trying to decide in which of the following three cities to locate a new production facility, and has gathered the following information about each:a. If this facility will
Consider the following map of six cities, indicated by the six dark-numbered points. The five light-colored points labeled A through E indicate five candidate locations for a new warehouse that will
Fulton Logistics must purchase land to locate a new freight container yard. This yard will be a satellite location to relieve overcrowding at Fulton's existing yard next to the Port of Endover.
Gamma Distribution is building a new distribution center to supply five of its regional warehouses. These warehouses are located in cities in the eastern portion of the United States, which Gamma has
Celvin FoodStuff operates a chain of mini conve- nience stores in downtown city settings, offering beverages, snack food, and some fresh food items to passing pedestrian traffic. A typical Celvin
How does the analysis from the supplier position and supplier preferencing models affect how a purchasing manager plans to do business with suppliers?
Why is the organization's structure important in how the supply chain management function operates?
How can good boilerplate terms and conditions of contract still fail to protect an organization against some risk?
Do the steps of a procurement process differ, depending on the risk and/or value of what is being purchased?
Is the end customer upstream or downstream from a manufacturer?
Is a tier 1 supplier associated with the inbound or outbound logistics of another firm?
In the supplier positioning model, the X and Y axes are composed of what?
In the supplier preferencing model what does core represent?
Would a centralized supply management function assign purchasing decisions to individual managers at each of an organization's locations?
Who has greater authority, a sales representative or a sales agent?
In purchasing, a bid or cost estimate provided by a potential supplier is commonly called a what?
In purchasing, when someone acts with authority that they don't formally possess, is this known as apparent or actual authority?
In purchasing, a PO is understood to be what?
Are standard terms and conditions for a contract often referred to as boilerplate or as ABC policy?
The favored type of negotiation that generally provides the best results is called what?
Comparing your organization's processes and performance metrics with other top performing or best-in-class organizations is called what?
Using the supplier positioning/preferencing models you identify that the goods to be purchased fall within the strategic critical/core quadrants of the models. What sort of contract should you
Speedy Aircraft Maintenance is a regional provider of aircraft repair ser- vices. Speedy Aircraft's procurement department is preparing to replace all its business computers, working from a budget of
The procurement department of Horizon Hotels is working on construction of its newest hotel resort. Four tenders have been received by the depart- ment, which has evaluated these offers for quality
Champions' Gate Sports Camp operates four consequective 8-week residen- tial training sessions for young athletes. Each sports camp session hosts 150 student athletes and 30 staff members at the
The economic model of waiting lines minimizes the combined cost of waiting and what other cost?
In an M/M/1 system, if the customer arrival rate increases while service times remain the same, what happens to the waiting line for that service? What happens to the service system's utilization
When an arriving customer leaves after joining an existing line for service but before being served, this behavior is called what?
What type of capacity assumes ideal operating conditions?
What type of capacity assumes normal operating conditions, including breaks for maintenance, etc.?
What is idle capacity maintained to absorb unexpected demand called?
A classroom has a design capacity of 60 seats and an effective capacity of 55 seats. If 45 students attend a class held at that location, calculate the utilization of that classroom during that class.
A classroom has a design capacity of 60 seats and an effective capacity of 55 seats. If 45 students attend a class held at that location, calculate the efficiency of that classroom during that class.
Branton Electric is considering the purchase of an entire cargo container filled with upgraded utility meters for $15,000. Branton can charge $50 for the installation of each upgraded meter, while
A particular parking garage is designed with 1,000 spaces in which to park 1,000 individual cars. Assume, however, that every Mercedes car needs two such spaces. What then is the design capacity of
Customers arrive an average of 10 per hour and an average of 16 customers can be served in an hour. Assuming this is an M/M/1 model, what is the system utilization?
Customers arrive an average of 10 per hour and an average of 16 customers can be served in an hour. Assuming this is an M/M/1 model, what is the average length of the line?
Customers arrive an average of 10 per hour and an average of 16 customers can be served in an hour. Assuming this is an M/M/1 model, what is the average number of customers in the system?
Customers arrive an average of 10 per hour and an average of 16 customers can be served in an hour. Assuming this is an M/M/1 model, what is the average amount of time spent waiting in the line?
Customers arrive an average of 10 per hour and an average of 16 customers can be served in an hour. Assuming this is an M/M/1 model, what is the average amount of time a customer spends in the system?
Customers arrive an average of 10 per hour and an average of 16 customers can be served in an hour. Assuming this is an M/M/1 model, what is the probability of no customers in the system?
The Kitti Kreme Donut production facility consists of three identical donut fry vats, each of which operated at 75% efficiency last month. If this facility produced a total of 150,000 donuts last
The effective capacity of a system is only 60% of its design capacity and its actual output is 80 units a day. If the system's design capacity is 300 units a day, how effi- cient is the use of this
Happy Pets Vet Clinic is considering renting a self-contained blood analysis machine for $500 a month, which would also require it to purchase the cartridges required for blood testing at $45 each.
Gallant Carpet Cleaning cannot meet demand with its current equipment. Gal- lant Carpet Cleaning is considering two new carpet cleaning machines. Machine A cleans carpets to residential standards,
Cars arrive on average 10 minutes apart at a single toll booth with a Poisson arrival rate and an exponential service time averaging 1 minute. How often is this toll booth idle?
A system that is idle 50% of the time serves customers arriving at a rate of 10 an hour. Assuming this system fits the description of M/M/1, what is the average length of this service?
Almance Technology sells the Solar Cat Eye System, which generates electrical power from solar cells built into the bright reflective lenses embedded in the sur- face of roadways to mark the travel
Tube Country rents circular rubber rafts that its customers use to float down the Ichituckni River. Tube Country owns a fleet of 200 rafts, each of which is returned on the same day it is rented, and
You have purchased a smart phone that has a battery system advertised as allowing 22 hours of talk time before it requires recharging. A friend of yours advises you that it is a good phone, but the
Auto Shoppe is considering the purchase of a new engine computer code reader for $65,000. Auto Shoppe can charge $75 for the service of reading the codes from a single car engine, while the actual
Customers arrive at a ferry ticket office at the rate of 14 per hour on Monday morn- ings. This can be described by a Poisson distribution. Selling the tickets and pro- viding general information
All trucks traveling on I-75 south of Ocala, Florida, must stop at a weigh station. This station has one set of scales, which can weigh an average of 18 trucks an hour, exponentially distributed.
A single ATM is located on the ground floor of a shopping center. Service time at this machine is exponentially distributed. On average, the ATM can serve a customer in 2 minutes. Customer arrivals
Cars traveling from Canada to the United States through the Thousand Islands Border Crossing must stop for US Customs and Immigration. During the stop, each passenger in the car must present a
The US Transportation Security Administration (TSA) operates six checkpoints for screening departing passengers at the Buffalo/Niagara International Airport. Each checkpoint consists of a baggage
When might it be desirable to have some amount of idle time at a workstation?
Of the four types of layouts discussed, hybrid layouts are historically the youngest. Which of the other three layout types is the oldest? Why?
The theoretical maximum cycle time of a product layout is the sum of the task times. How might it be argued that this would then no longer be a product layout?
Product layouts are vulnerable to disruption. What can a manager do to protect a highly efficient product layout from disruption?
Is a fixed-position layout actually a facility? Could it ever support a strategy other than make-to-order?
An 80,000 seat stadium was created with what kind of facility layout?
Designing a process layout focuses on determining what?
Name two disadvantages of a product layout.
The grouping of processes needed to perform the similar work for families of prod- ucts is known as what type of layout?
What closeness rating reflects indifference to the nearness or lack of nearness of two particular departments within a facility layout?
Two assembly lines build the exact same product. One assembly line has 15 work- stations and the other has 20 workstations. Which assembly line builds that product faster?
Two assembly lines build the exact same product. One assembly line has a cycle time of 30 seconds and the other a cycle time of 90 seconds. Which assembly line has more workstations?
Which would be expected to be less expensive to the customer, a product that resulted from a make-to-stock process or the same product from an assemble-to-order process?
Which would be expected to offer greater variety to the customer, a product that resulted from a make-to-stock process or the same product from an assemble-to- order process?
Would reducing the cycle time of a product layout speed up its production or slow it down?
Project management is most likely to be associated with production within which of the four layout types?
Process layouts are often designed according to what objective?
A production line is to be designed to assemble a product. The assembly of this product requires three tasks, one of which requires 0.3 minutes to complete, one of which requires 1.4 minutes to
A production line is to be designed to assemble a product. The assembly of this product requires three tasks, one of which requires 0.3 minutes to complete, one of which requires 1.4 minutes to
A production line must produce 1,500 units every 4 hours of operating time. What is its cycle time in seconds?
A production line must produce 900 units every 10 hours of operating time. What is its cycle time in minutes?
If a production line has a cycle time of 90 seconds, how much can it produce in 8 hours?
An assembly line must create one finished product every 90 seconds. The sum of the task times required to create a product is 295 seconds. What is the theoretical minimum number of workstations for
An assembly line must create one finished product every 90 seconds. The sum of the task times required to create a product is 295 seconds. If one design for this assembly line uses four workstations,
What is the balance delay of an assembly line that is 65% efficient?
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