POM Exam 2
Poka-Yoke is roughly translated from Japanese as "Avoid Mistakes."
True
Poka-Yokes are procedures that block the inevitable mistake from becoming a service defect.
True
Process selection refers to the strategic decision of selecting which kind of production processes to use to produce a product or provide a service.
True
Project management can be defined as planning, directing, and controlling resources to meet the technical, cost, and time constraints of the project.
True
Project management software available today combines CPM and other scheduling aids, like Gantt charting, to aid in tracking progress of project completion.
True
Services often take the form of repeated encounters involving face-to-face interactions.
True
The Gantt chart is an example of a project control chart.
True
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.
True
The activity direct costs associated with a project might include giving workers overtime to complete a project in less than the expected time.
True
The central problem in virtually every waiting line situation is a trade-off decision balancing the costs of adding services with the costs of waiting.
True
The closer the customer is to the customer order decoupling point the more quickly the customer receives the product.
True
The critical path in a CPM analysis is found by locating the activities times with zero slack.
True
The critical path in a project is that sequence of activities that consume the longest amount of time in a project network of activities.
True
You have collected the data for a Time-Cost CPM Scheduling model analysis. The time is in days and the project "direct costs" are given below. The indirect costs for the project are determined on a daily duration basis. If the project lasts 16 days the total indirect costs are $400, 15 days they will be $250, 14 days they will be $200, and 13 days they will be $100. If you crash this project by one day what is the total (i.e., direct and indirect) project cost? Picture $2,150 $2,300 $2,400 $2,450 $2,500
$2,150
For an infinite queuing situation, if the arrival rate for loading trucks is 5 trucks per hour, what is the mean time between arrivals? 5 hours 2.5 hours 0.2 hours 0.1 hours None of these
0.2 hours
Assume the service rate for a queue in a truck-loading operation is 2 trucks per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the average service time? 2 hours 1 hour 0.5 hours 0.25 hours None of these
0.5 hours
Using the assembly-line balancing procedure, which of the following is the required cycle time if the production time in minutes per day is 1440 and the required output per day in units is 2000? 0.72 1.388 250 500 Cannot be determined from the information above
0.72
Earned Value Management (EVM) is a technique for measuring project progress in an objective manner.
True
You have just determined the actual number of workstations that will be used on an assembly line to be 8 using the assembly-line balancing procedure. The cycle time of the line is 10 minutes and the sum of all that tasks required on the line is 60 minutes. Which of the following is the correct value for the resulting line's efficiency? 0.500 0.650 0.750 0.850 None of these
0.750
You have just determined the actual number of workstations that will be used on an assembly line to be 6 using the assembly-line balancing procedure. The cycle time of the line is 5 minutes and the sum of all that tasks required on the line is 25 minutes. Which of the following is the correct value for the resulting line's efficiency? 0.500 0.833 0.973 0.990 None of these
0.833
A company must perform a maintenance project consisting of seven activities. The activities, their predecessors, and their respective time estimates are presented below: Picture Using CPM, what is the Latest Finish Time for the last activity in this project (i.e., the total time to complete the project)? 9 days 10 days 11 days 12 days 13 days
11 days
A simple project listing of five activities, their predecessors, and their respective time estimates are presented below: Picture Using CPM, what is the Latest Finish Time for the last activity in this project (i.e., the total time to complete the project)? 10 days 7 days 8 days 12 days 9 days
12 days
You have collected the data for a Time-Cost CPM Scheduling model analysis. The time is in days and the project "direct costs" are given below. The indirect costs for the project are determined on a daily duration basis. If the project lasts 16 days the total indirect costs are $400, 15 days they will be $250, 14 days they will be $200, and 13 days they will be $100. At what day do we achieve the lowest total project cost (i.e., direct plus indirect costs)? Picture 16 days 15 days 14 days 13 days 12 days
15 days
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 4, 6, 7, 2, 6, and 5 minutes, and the cycle time is 10 minutes? 3 5 6 8 None of these
3
Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the eight tasks that make up the job are 7, 4, 7, 8, 9, 4, 3, and 6 minutes, and the cycle time is 8 minutes? 3 5 6 8 None of these
6
Using the assembly-line balancing procedure, which of the following is the required cycle time in minutes per unit if the daily production time is 480 minutes and the required daily output is 50 units? 0.104 50 9.6 480 Cannot be determined from the information above
9.6
A project starts out as which of the following? A Statement of Work Critical Path Method (CPM) A series of milestones A Gantt chart A latest-start-time estimate
A Statement of Work
What is a work breakdown structure? A list of the activities making up the higher levels of the project A definition of the hierarchy of project tasks, subtasks, and work packages A depiction of the activities making up a project A Gantt chart A structure that is incompatible with the Critical Path Method
A definition of the hierarchy of project tasks, subtasks, and work packages
Some of the advantages of a functional project where the project is housed in a functional division include which of the following? The project manager has full authority over the project Team pride, motivation, and commitment are high A team member can work on several projects Needs of the client are secondary None of these
A team member can work on several projects
A simple project listing of five activities and their respective time estimates are presented below: Picture Using CPM, which activities make up the critical path? A, C, D, E A, B, D, E A, C, B, D, E A, D, E None of these
A, B, D, E
A company must perform a maintenance project consisting of seven activities. The activities, their predecessors, and their respective time estimates are presented below: Picture Using CPM, which activities make up the critical path? A, B, D, F, G A, C, E, F, G A, C, B, F, E A, D, E None of these
A, B, D, F, G
You have the following time and cost information below for use in a Time-Cost CPM Scheduling model. What are the three costs per unit of time to expedite each activity? Picture A=$100, B=$200, C=$400 A=$200, B=$200, C=$200 A=$100, B=$400, C=$300 A=$200, B=$300, C=$400
A=$200, B=$300, C=$400
Which of these expressions is Little's Law? Inventory/Flow time = Throughput rate: Inventory/Throughput Rate = Flow time Inventory = Throughput rate × Flow time Throughput Rate/Inventory = 1/Flow Time All of the above
All of the above
A firm will work with a customer to design the product, and then make it from purchased materials, parts, and components. This firm is called: A make to order firm An engineer to order firm A make to stock firm A customer service firm An assemble to order firm
An engineer to order firm
Which of the following basic types of process structures is one which equipment or work processes are arranged according to the progressive steps by which the product is made? Project Workcenter Manufacturing cell Assembly line Continuous process
Assembly line
A simple project listing of five activities, their predecessors, and their respective time estimates are presented below: Picture Using the CPM, which activities have slack in this project? A B C D C and E
C
A company must perform a maintenance project consisting of seven activities. The activities, their predecessors, and their respective time estimates are presented below: Picture Using CPM, which activities have slack in this project? A, B, C B, D Only C C, E F, G
C, E
Which of the following is a graphic project report used in project management? Project proposal Approved project plan Humphrey chart Equipment and supplies chart Cost and performance tracking schedule
Cost and performance tracking schedule
Which of the following refers to the physical presence of the customer in a service system? Creation of the service Customer contact Intermittent production Continuous production None of these
Customer contact
Which of the following is not a suggestion for managing queues presented in the textbook? Train your servers to be friendly Segment the customers Determine an acceptable waiting time for your customers Inform your customers of what to expect Encourage customers to come during slack periods
Determine an acceptable waiting time for your customers
Which of the following is not a step in developing a manufacturing cell layout? Grouping parts into families that follow a common sequence of steps Identifying dominant flow patterns of parts families as a basis for location of processes Physically grouping machines and processes into cells Disposing of left-over machinery and outsourcing ungrouped processes None of the above
Disposing of left-over machinery and outsourcing ungrouped processes
You are looking at a chart that has the terms BCWS, BCWP, and AC indicating lines on the chart. What kind of chart are you looking at? Gantt Chart PERT Chart Bar/Milestone Chart Total Program Cost Breakdown EVM Chart
EVM Chart
What does "EVM" stand for? Extra Value Materials—premium quality raw materials at the project site. Enterprise Vacation Matrix—A chart indicating team members planned vacation absences Earned Value Management-a technique for measuring project progress objectively. Early Vision Management—An technique used in early project planning meetings for activities that set expectations to highlight and avoid "scope creep." External Variance Measurement—identifying the degree to which project time and cost variances were due to forces and issues uncontrollable by the project manager.
Earned Value Management-a technique for measuring project progress objectively.
Which following queue discipline is discussed in the textbook? Emergencies first Garner-Whitten formula Newest customer first Patient customers last None of these
Emergencies first
The placement of which of the following is not determined by production process organization decisions? Departments Workgroups Workstations Machines Emergency exits
Emergency exits
Which of the following is not considered a major work flow structure? Work Center Project Assembly line Fabrication Continuous Flow
Fabrication
Every service has a service package, which is defined as a bundle of goods and services provided in some environment. The service package consists of five features. Which of the following is not one of these features? Supporting facility Facilitating services Information Explicit Services Implicit Services
Facilitating services
A constant arrival rate is more common in productive systems than a variable arrival rate.
False
A continuous process indicates production of discrete parts moving from workstation to workstation at a controlled rate.
False
A disadvantage of a matrix project organizational structure is that a project manager is held responsible for successful completion of the project.
False
A finite population in waiting line management refers to a population that is large enough in relation to the service system so that the change in population size caused by subtraction or additions to the population does not significantly affect the system probabilities.
False
A make-to-order firm will work with the customer to design the product, and then make it from purchased materials, parts, and components.
False
A matrix project structure is often referred to as a "skunkworks."
False
A process map shows the physical location of the various processes within a supply chain.
False
A service system with a high degree of customer contact is less difficult to control than a low degree of customer contact service system.
False
A tellers' window in a bank is an example of a single channel, multiphase queuing system.
False
A work breakdown structure is used in project management but it is not used when the critical path method is involved.
False
An event unit package is a subdivision of a project.
False
Arrival characteristics in a queuing problem analysis include the length of the queue.
False
Because little or no inventory is carried in a service operation, it is easy to separate the operations management functions from marketing in services.
False
Best customer last is a queue discipline discussed in the textbook.
False
Breakthrough projects are those that provide fundamental improvements to existing products.
False
Calculating the early start and early finish times for each activity in a CPM analysis does not provide any useful information.
False
Customer contact refers to creation of the service.
False
Effective management of services requires a clear focus on understanding operations, so much so, that it may even require the exclusion of consideration of marketing or personnel.
False
Gas stations, loading docks, and parking lots have infinite potential length of lines for their respective queuing systems.
False
If the sum of the task times required to produce a product is 80 minutes and the cycle time for the same product is 15 minutes, the theoretical minimum number of workstations is 8 using the assembly-line balancing procedure.
False
In a CPM analysis if you subtract the late finish from the early finish the result is the activity's slack time.
False
In a practical sense, a finite population is one that potentially would form a very long line in relation to the capacity of the serving system.
False
In a practical sense, an infinite queue is one that includes every possible member of the served population.
False
In a waiting line situation, multiple lines occur only when there are multiple servers.
False
In balancing an assembly line, workstation cycle time has to be less than the time between successive units coming off the end of the line.
False
Little's law states that supply chain processes can be regarded as unrelated and thus treated and analyzed separately.
False
One of the disadvantages of a pure project organizational structure is that the project manager has full authority over the project.
False
Poka-Yoke is roughly translated from Japanese as "Quality Management."
False
Process selection refers to the strategic decision of choosing the volume of output to produce in a manufacturing facility depending upon the way that facility produces.
False
Slack activity time is the difference between the early start and the late finish of a project activity time.
False
The "service blueprint" is a classification of services.
False
The admissions system in a hospital for patients is an example of a single channel, single phase queuing system.
False
The assembly-line balancing procedure determines the precedence relationships of manufacturing tasks.
False
The closer the customer is to the customer order decoupling point the longer it takes the customer to receive the product.
False
The critical path in a CPM analysis is always the shortest path through the network.
False
The critical path of activities in a project is the sequence of activities that form the shortest chain in a project network of activities.
False
The customer arrivals in a queuing system come almost exclusively from finite populations.
False
The customer arrivals in a queuing system come almost exclusively from infinite populations.
False
The demand on a hospital's emergency medical services is considered a controllable arrival pattern of the calling population.
False
The efficiency of an assembly-line is found by a ratio of the sum of all task times divided by the cycle time.
False
The essential issue in satisfying customers in the make-to-stock environment is to balance the cost of the finished item against the willingness of the consumer to pay for it.
False
The second step in managing a project is writing the Statement of Work.
False
The service-system design matrix identifies five alternative forms of service encounters.
False
The term "queue discipline" involves the art of controlling surly and unruly customers who have become irritated by waiting.
False
The time needed to respond to a customer's order is called the customer response time.
False
The valuations in an Earned Value Management analysis must be either profits or revenue.
False
The work process involved in providing the service must involve the physical presence of the customer in the system.
False
When reducing the planned duration of a project using the Time-Cost CPM model we select the activity to crash by determining the cost of each alternative and selecting the one whose cost is the greatest.
False
Work center layouts allocate dissimilar machines into cells to work on products that have dissimilar processing requirements.
False
You are managing a project and need to cut the cost of the project. You decide to transfer workers to another job to cut the project's costs. Costs associated with transferring the workers are an example of project indirect costs.
False
The service blueprint makes a distinction between: High and low customer contact aspects of the service Those parts of the service performed before payment from those performed after payment Standardized elements of the service and those distinctive customized aspects of the service. Customers desiring good service and customers unconcerned with service quality. Low and high value-added aspects of the service
High and low customer contact aspects of the service
In the service-system design matrix, an internet and on-site technology service encounter is expected to have which of the following? High sales opportunity High degree of customer/server contact Low production efficiency High production efficiency None of these
High production efficiency
Which of the following is an alternative possible service encounter included in the service-system design matrix? Face-to-face distance Internet Questionnaire response Automated teller (ATM) Response card encounter
Internet
According to Little's Law, which of the following ratios is used to find throughput rate? Cycle time/Process time Throughput time/Process velocity Process velocity/Throughput time Inventory /Flow time Value added time/Process velocity
Inventory /Flow time
A listing of immediate predecessor activities is important information in a CPM analysis for which of the following reasons? It specifies the relationships in the CPM network of activities It provides useful timing information It includes cost information It is the probability information required in the final step of CPM None of these
It specifies the relationships in the CPM network of activities
Which of the following is not a queue discipline discussed in the textbook? First come, first served Last in, first out Limited needs Shortest processing time Best customer first
Last in, first out
An advantage of a pure project where self-contained teams work full time on a project is which of the following? Team members can work on several projects Functional area is a "home" after the project is completed There are duplicated resources Lines of communication are shortened Overall organizational policies and goals can be ignored
Lines of communication are shortened
In the service-system design matrix, a face-to-face loose specs service encounter is expected to have which of the following? Low sales opportunity Low production efficiency High production efficiency Low degree of customer/server contact None of these
Low production efficiency
In the service-system design matrix, a face-to-face total customization service encounter is expected to have which of the following? Low sales opportunity Low production efficiency High production efficiency Low degree of customer/server contact None of these
Low production efficiency
In the service-system design matrix, a mail contact service encounter is expected to have which of the following? High sales opportunity High degree of customer/server contact High production efficiency Low sales opportunity None of these
Low sales opportunity
Which of the following are alternative possible service encounters included in the Service-System Design Matrix? Mail contact Warranty Sales call Field service None of these
Mail contact
A firm fills its customer's orders from finished goods inventory. It is a: Make to order firm Engineer to order firm Make to stock firm Customer service firm Assemble to order firm
Make to stock firm
A series of projects that are organized in such a way that each project utilizes people from different functional areas is using which of the following organizational structures? Matrix project Integrated Task Force Functional project Pure project Cross-functional flexible team
Matrix Project
Which of the following is not a basic type of process structure? Product-process matrix Workcenter Manufacturing cell Assembly line Continuous process
Product-process matrix
You have just been assigned to oversee a series of projects. Functional areas will loan you personnel for each project and separate project managers will be responsible for separate projects. These project managers will report to you. Which project management structure is being used? Pure Project Task force Matrix Project Functional Project PERT
Matrix Project
Buying a ticket for a college football game where there are multiple windows to buy the ticket at features which type of queuing system line structure? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Multichannel, single phase
Buying food at a large food store with multiple checkout counters features which type of queuing system line structure? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Multichannel, single phase
Machine breakdown and repair in a twelve machine factory having one repair mechanic would develop which type of queuing system line structure concerning machine breakdowns? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Multichannel, single phase
Standing in line to buy a ticket for a movie where there are multiple windows to buy tickets is which type of queuing system line structure? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Multichannel, single phase
In CPM analysis it is generally expected that the relationship between activity direct costs and project indirect costs will be which of the following? Positively related Optimally related Negatively related Not related Fractionally related
Negatively related
A company is concerned about the number of customers that have to wait for service in their customer service department. Assume the rate at which customers arrive is 12 per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the mean time between arrivals? 12 minutes 6 minutes 2 minutes 1 minutes None of these
None of these
Which of the following is not a suggestion for managing queues presented in the textbook? Try to divert your customer's attention when waiting Segment the customers Encourage customers to come during a slack period Train your servers to be friendly Periodically close the service channel to temporarily disperse the line
Periodically close the service channel to temporarily disperse the line
Which of the following is considered a high-contact service operation? On-line brokerage house Internet sales for a department store Physician practice Telephone life insurance sales and service Automobile repair
Physician practice
PERT is an abbreviation for which of the following methodologies? Product Evaluation, Result, and Treatment Programming and Evaluation Realization Technology Program Evaluation and Review Technique Process Evaluation and Review Technology It is a name, not an abbreviation for anything
Program Evaluation and Review Technique
You have been placed in charge of a large project. Shortened communication lines are required to ensure quick resolution of problems as they arise. You recognize that the project is going to take a lot of time and require a lot of team pride, motivation, and commitment by all members. Which project management structure should you use in this situation? Pure Project Task force Matrix Project Functional Project PERT
Pure Project
Which of the following is a suggestion for managing queues that is mentioned in the textbook? Put up a serpentine lane to keep people from jumping ahead in line Use humor to defuse a potentially irritating situation Segment the customers Assure customers that the wait is fair and inform them of the queue discipline Tell people in the queue that each will be served as soon as possible
Segment the customers
Which of the following is a characteristic that can be used to guide the design of service systems? Services cannot be inventoried Services are all similar Quality work means quality service Services businesses are inherently entrepreneurial Even service businesses have internal services
Services cannot be inventoried
In a college registration process, several department heads have to approve an individual student's semester course load. What is the queuing system line structure? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Single channel, multiphase
A roller coaster ride in an amusement park employs which type of queuing system line structure? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Single channel, single phase
Getting an autograph from a famous person might involve standing in which type of queuing line structure? Single channel, single phase Single channel, multiphase Multichannel, single phase Multichannel, multiphase None of these
Single channel, single phase
When balancing an assembly line, which of the following is not a way to reduce the longest task time below the required workstation cycle time? Upgrade the equipment Assign a roaming helper to support the line Split the task between two workstations Speed up the assembly line transfer mechanism Use a more skilled worker
Speed up the assembly line transfer mechanism
There are many applications of poka-yokes in service organizations. Which of the following is one of the three-T's used to classify poka-yokes? Task Time Teamwork Trust Talent
Task
For an activity in a CPM analysis the Early Finish time is 20 and the Late Finish time is 20. Which of the following statements is true? The activity's late start must happen before its early start The activity is on the critical path The slack for this activity is 20 The duration of this task is zero The duration of this task is 20
The activity is on the critical path
Which of the following is an example of a finite population in a queuing system? People waiting to place their order at a fast food restaurant The departmental faculty in line at the copy machine. People waiting in line at an ATM. Patients seeking help in a hospital emergency room Taxpayers calling for assistance from the IRS
The departmental faculty in line at the copy machine.
In a project analysis using three time estimates with more than one critical path existing, how does the project manager decide which variances to use in arriving at the probability of meeting the project due date? The project manager averages the variances and uses that The project manager uses the smallest variance in order to get the highest probability of on-time completion The project manager uses the variances considered most correct The project manager uses the largest variances in order to understate the probability of on-time completion The project manager uses the most likely estimate plus the amount of slack time in the project.
The project manager uses the largest variances in order to understate the probability of on-time completion
In essence, a queuing system includes several major components. Which of the following is not one of them? Source population Servicing system How the customer exits the system The queue discipline None of these
The queue discipline
The "line of visibility" is a feature of: A single-channel, single phase queuing system The service blueprint An entertainment activity for people waiting in line for a service. A waiting line that allows visibility of the server(s) tending to customers in front of you. None of these
The service blueprint
A difference between project and continuous flow categories of process flow structures is which two of the following? The size and bulk of the product Discrete parts moving from workstation to workstation Degree of equipment specialization Being a "Virtual Factory" Profit per unit
The size and bulk of the product
For an activity in a CPM analysis, the Early Start time is 8 and the Late Start time is 10. Which of the following statements is true? The Late Finish is 12 The Early Finish is 10 The slack for this activity is 2 The duration of this activity is 2 The activity is on the critical path
The slack for this activity is 2
Which of the following are the three major components of a queuing system? The source population, how customers exit the system, and the queuing discipline The number of servers, the service speed and the waiting line The source population, how the customer exits the system, and the servicing system. The source population and the way customers arrive at the system, the serving systems, and how customers exit the system. The service speed, the queue discipline and the waiting line
The source population and the way customers arrive at the system, the serving systems, and how customers exit the system.
According to Little's Law, which of the following can be used to estimate work-in-process inventory? Process time/Cycle time Throughput rate times Flow time Process velocity/Flow time Set up time/Throughput rate Value added time/Process velocity
Throughput rate times Flow time
In a Gantt chart the horizontal axis is usually which of the following? Activities Cost Profit Time Milestones
Time
The major goal of Critical Path analysis is to: Estimate the project's completion date Identify and manage the critical path Determine the latest feasible start date Provide a visual aid that indicates precedent and antecedent relationships To determine when each activity in the project should be scheduled
To determine when each activity in the project should be scheduled
Below are the data for a Time-Cost CPM Scheduling model analysis. The time is in days and the costs include both direct and indirect costs. If you crash this project to reduce the total time by one day what is the total time of the project and total cost? Picture Total time is 13 days, total cost is $1500 Total time is 12 days, total cost is $2000 Total time is 12 days, total cost is $2300 Total time is 11 days, total cost is $1850 Total time is 11 days, total cost is $2350
Total time is 11 days, total cost is $1850
Below are the data for a Time-Cost CPM Scheduling model analysis. The time is in days and the costs include both direct and indirect costs. What are the total time of this project and total normal cost? Picture Total time is 13 days, total cost is $1200 Total time is 12 days, total cost is $1700 Total time is 11 days, total cost is $1600 Total time is 10 days, total cost is $1750 Total time is 9 days, total cost is $1700
Total time is 12 days, total cost is $1700
Below are the data for a Time-Cost CPM Scheduling analysis. The time is in days and the costs include both direct and indirect costs. If you crash this project to reduce the total time by four days, what is the total time of the project and total cost? Picture Total time is 10 days, total cost is $2500 Total time is 9 days, total cost is $2300 Total time is 8 days, total cost is $2750 Total time is 8 days, total cost is $1850 Total time is 9 days, total cost is $2350
Total time is 8 days, total cost is $2750
Which of the following is a suggestion for managing queues presented in the textbook? Train your servers to be friendly Tell customers that the line should encourage them to come during slack periods Give each customer a number Periodically close the service channel to temporarily disperse the line Use humor to defuse a potentially irritating situation
Train your servers to be friendly
Which of the following is a suggestion for managing queues that is mentioned in the textbook? Put up a serpentine lane to keep people from jumping ahead in line Use humor to defuse a potentially irritating situation Train your servers to be friendly Assure customers that the wait is fair and inform them of the queue discipline Tell people in the queue that each will be served as soon as possible
Train your servers to be friendly
There are many applications of poka-yokes in service organizations. Which of the following is one of the three-T's used to classify poka-yokes? Talent Teamwork Trust Treatment Time
Treatment
A car wash is an example of a single channel, multiphase queuing system.
True
A department of 25 machines is kept running by three operators who respond to randomly occurring equipment problems. An analyst wanting to know whether to add a fourth operator or downsize to two operators would be helped by using queuing theory analysis.
True
Engineer-to-order firms will work with the customer to design the product, and then make it from purchased materials, parts, and components.
True
A department of 25 machines is kept running by three operators who respond to randomly occurring equipment problems. An analyst who wanted to know how much production was being lost by machines waiting for service could use queuing theory analysis to find out.
True
A department of 25 machines is kept running by three operators who respond to randomly occurring equipment problems. When an operator is absent, the amount of production being lost by machines waiting for service increases. The analyst can use queuing theory analysis to determine whether to pay overtime to an operator from a different shift or not.
True
A high-level map or diagram of a supply chain process can be useful to understand how material flows and where inventory is held.
True
A matrix project attempts to blend properties of functional and pure project structures.
True
A project layout is characterized by a high degree of task ordering.
True
A project layout is characterized by a relatively low number of units produced in comparison with process and product layout formats.
True
A project milestone is a specific event to be reached by a particular point in time.
True
A variable arrival rate is more common in waiting line management than a constant arrival rate.
True
An example of an assemble-to-order firm is Dell Computer.
True
An important aspect of service products is that they cannot be inventoried.
True
An infinite population in waiting line management refers to a population that is large enough in relation to the service system so that the change in population size caused by subtraction or additions to the population does not significantly affect the system probabilities.
True
Assembling-to-order means moving the customer order decoupling point from finished goods to components.
True
CPM is an abbreviation for Critical Path Method.
True
Complex projects are often subdivided into a series of tasks that are typically configured to be not longer than several months in duration.
True
Derivative projects are those which address incremental changes to products or processes.
True
Earned Value Management (EVM) has the capability to combine measurements of scope, schedule, and cost in a project.
True
For the purposes of assembly-line balancing, the required workstation cycle time is found by dividing production time per day by the required units of output per day.
True
Highest-profit customer first is a queue discipline discussed in the textbook.
True
Ideally in waiting line or queuing analysis we want to balance the cost of service capacity with the cost of waiting.
True
If the sum of the task times required to produce a product is 45 minutes and the cycle time for the same product is 10 minutes. Thus, the theoretical minimum number of workstations is 5 using the assembly-line balancing procedure.
True
In CPM the late start time estimate is the latest time you can start an activity and still keep the entire project on schedule.
True
In a CPM analysis if you subtract the early start from the late start the result is the activity's slack time.
True
In assembly-line balancing the theoretical minimum number of workstations is found by a ratio of the sum of all task times divided by the cycle time.
True
In designing a production layout a flexible line layout might have the shape of a "U".
True
In the Time-Cost CPM model, cost is assumed to be a linear function of time.
True
It is difficult to separate the operations management functions from marketing in services.
True
Little's law can be thought of as a relationship between units and time.
True
Longest waiting time in line is a queue discipline discussed in the textbook.
True
One difference between an assembly line process flow and a continuous process flow is that on the assembly line the flow is discrete rather than continuous.
True
One of the advantages of a functional project organizational structure is that a team member can work on several projects.
True
One of the assumptions made using CPM is that project activities can be identified with clear beginning and ending points.
True
One of the assumptions made using CPM is that project activity sequence relationships can be specified and networked.
True
One trade-off illustrated by the product-process matrix is between flexibility and cost.
True
The demand on a hospital's emergency medical services is considered an uncontrollable arrival pattern of the calling population.
True
The essential issue in satisfying customers in the make-to-stock environment is to balance the level of finished inventory against the level of service to the customer.
True
The fact that organizations are flattening is one of the reasons that project management is important.
True
The first step in balancing an assembly line is to specify the precedence relationships among tasks to be performed on the line.
True
The focus in the make-to-stock environment is on providing finished goods where and when the customers want them.
True
The product-process matrix shows the relationship between process structures and product volume and variety characteristics.
True
The project indirect costs associated with a project include overhead, facilities, and resource opportunity costs.
True
The service-system design matrix identifies six forms of service encounters.
True
The term "assembly line" refers to progressive assembly linked by some material handling device.
True
The term "encounter" is defined by Webster's Dictionary as "meeting in conflict or battle" and is used to also designate meetings between consumers and service systems.
True
The volume requirements for the product are one determinant of the choice of which process structure to select.
True
There are different queuing models to fit different queuing situations.
True
Upper level management must decide between pure, functional, and matrix structures as ways to organize projects.
True
Using the Time-Cost CPM model, the crash time is the shortest possible time allowed for each activity in the project.
True
Workstation cycle time is the time between successive units coming off the end of the assembly line.
True
A project can be subdivided into which of the following? Job orders Sub-jobs Work packages Sub-paths Events and decisions
Work Packages
Which of the following basic types of process structures is one which similar equipment or functions are grouped together? Project Workcenter Manufacturing cell Assembly line Continuous process
Workcenter
Which of the following is a basic type of process structure? Process flow diagram Product matrix Process matrix Workcenter Manual assembly
Workcenter
You have just performed a CPM analysis and have found that more than one path through the project network has zero slack values. What can you conclude? You have incorrectly performed the analysis You have multiple critical paths Only one path is optimal More than one path is optimal The project will not be completed by the desired time
You have multiple critical paths
You know when you have arrived at the optimal solution in using the Time-Cost CPM Scheduling model analysis when what happens? You have found the critical path You have run out of crash time You no longer have a linear relationship with costs You have reached the minimum total cost You have run out of crash costs
You have reached the minimum total cost